Linksys RV016 User Manual

A Division of Cisco Systems, Inc.

®

Model No.

WIRED

RV016

10/100

16-Port VPN Router

User Guide

10/100 16-Port VPN Router

Copyright and Trademarks

Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain
other countries. Copyright © 2004 Cisco Systems, Inc. All rights reserved.

How to Use this Guide

This User Guide has been designed to make understanding networking with the Router easier than ever. Look for
the following items when reading this Guide:

This checkmark means there is a Note of interest and
is something you should pay special attention to while
using the Router.

This exclamation point means there is a Caution or
Warning and is something that could damage your
property or the Router.

This question mark provides you with a reminder about
something you might need to do while using the Router.

In addition to these symbols, there are definitions for technical terms that are presented like this:

word: definition.

Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like
this:

Figure 0-1: Sample Figure Description

Figure numbers and descriptions can also be found in the “List of Figures” section in the “Table of Contents”.

RV016-UG-40205A JL

10/100 16-Port VPN Router

Table of Contents

Chapter 1: Introduction 1

Welcome 1
What’s in this Guide? 2

Chapter 2: Networking Basics 4

An Introduction to LANs 4
The Use of IP Addresses 4
Why do I need a VPN? 5
What is a VPN? 6

Chapter 3: Getting to Know the Router 8

The Front Panel 8
The Back Panel 10

Chapter 4: Connecting the Router 11

Overview 11
Connection Instructions 12

Chapter 5: Configuring the PCs 13

Overview 13
Configuring Windows 98 and Millennium PCs 13
Configuring Windows 2000 PCs 14
Configuring Windows XP PCs 14

Chapter 6: Setting up and Configuring the Router 16

Overview 16
How to Access the Web-based Utility 19
System Summary Tab 19
Setup Tab - Network 22
Setup Tab - Password 25
Setup Tab - Time 25
Setup Tab - DMZ Host 26
Setup Tab - Forwarding 26
Setup Tab - UPnP 28
Setup Tab - One-to-One NAT 29
Setup Tab - MAC Clone 30
Setup Tab - DDNS 31

10/100 16-Port VPN Router

Setup Tab - Advanced Routing 32
DHCP Tab - Setup 34
DHCP Tab - Status 36
System Management Tab - Multi-WAN 37
System Management Tab - SNMP 40
System Management Tab - Diagnostic 41
System Management Tab - Factory Default 42
System Management Tab - Firmware Upgrade 42
System Management Tab - Restart 43
System Management Tab - Setting Backup 43
Port Management Tab - Port Setup 44
Port Management Tab - Port Status 45
Firewall Tab - General 46
Firewall Tab - Access Rules 47
Firewall Tab - Content Filter 49
VPN Tab - Summary 50
VPN Tab - Gateway to Gateway 52
VPN Tab - Client to Gateway 59
VPN Tab - VPN Pass Through 68
Log Tab - System Log 69
Log Tab - System Statistics 71
Wizard Tab 72
Support Tab 81
Logout Tab 81

Appendix A: Troubleshooting 82

Common Problems and Solutions 82
Frequently Asked Questions 93

Appendix B: Upgrading Firmware 97
Appendix C: Finding the MAC Address and IP Address for Your

Ethernet Adapter 98

Windows 98 or Me Instructions 98
Windows 2000 or XP Instructions 98
For the Router’s Web-based Utility 99

Appendix D: Physical Setup of the Router 100

Setting up the Router 100

10/100 16-Port VPN Router

Appendix E: Battery Replacement 104

Replacing a Lithium Battery 104

Appendix F: Windows Help 105
Appendix G: Glossary 106
Appendix H: Specifications 113
Appendix I: Warranty Information 114
Appendix J: Regulatory Information 115
Appendix K: Contact Information 116

10/100 16-Port VPN Router

List of Figures

Figure 2-1: VPN Router-to-VPN Router VPN 7
Figure 2-2: Computer-to-VPN Router VPN 7
Figure 3-1: Front Panel 8
Figure 3-2: Back Panel 10
Figure 4-1: Example of a Typical Network 11
Figure 4-2: Connect a PC 12
Figure 4-3: Connect the Internet 12
Figure 4-4: Connect the DMZ 12
Figure 4-5: Connect the Power 12
Figure 5-1: TCP/IP for Windows 98 and Me 13
Figure 5-2: Obtain an IP address automatically for Windows 98 and Me 13
Figure 5-3: Internet Protocol (TCP/IP) for Windows 2000 14
Figure 5-4: Obtain an IP address automatically for Windows 2000 14
Figure 5-5: Internet Protocol (TCP/IP) for Windows XP 15
Figure 5-6: Obtain an IP address automatically for Windows XP 15
Figure 6-1: Router’s IP Address 19
Figure 6-2: Login Screen 19
Figure 6-3: System Summary 19
Figure 6-4: Site Map 20
Figure 6-5: Port Information 20
Figure 6-6: Setup Tab 22
Figure 6-7: Save New Number of WAN Ports 22
Figure 6-8: Obtain an IP Automatically 23
Figure 6-9: Static IP 23
Figure 6-10: PPPoE 23
Figure 6-11: PPTP 24
Figure 6-12: DMZ 24
Figure 6-13: Password 25

10/100 16-Port VPN Router

Figure 6-14: Time - Automatic 25
Figure 6-15: Time - Manual 25
Figure 6-16: DMZ Host 26
Figure 6-17: Forwarding 26
Figure 6-18: Service Management 27
Figure 6-19: UPnP 28
Figure 6-20: One-to-One NAT 29
Figure 6-21: MAC Clone 30
Figure 6-22: Edit MAC Clone 30
Figure 6-23: DDNS 31
Figure 6-24: Edit DDNS 31
Figure 6-25: Advanced Routing 32
Figure 6-26: DHCP Setup 34
Figure 6-27: DHCP Status 36
Figure 6-28: Multi-WAN Load Balance 37
Figure 6-29: Save New Mode 37
Figure 6-30: Intelligent Balancer - Edit Load Balance 37
Figure 6-31: IP Group (By Users) 38
Figure 6-32: IP Group (By Users) - Edit Load Balance 38
Figure 6-33: SNMP 40
Figure 6-34: DNS Name Lookup 41
Figure 6-35: Ping 41
Figure 6-36: Factory Default 42
Figure 6-37: Confirm Return to Factory Default Settings 42
Figure 6-38: Firmware Upgrade 42
Figure 6-39: Restart 43
Figure 6-40: Setting Backup 43
Figure 6-41: Port Setup 44
Figure 6-42: Port Status 45
Figure 6-43: General Firewall 46

10/100 16-Port VPN Router

Figure 6-44: Access Rules 47
Figure 6-45: Add a New Access Rule 48
Figure 6-46: Content Filter 49
Figure 6-47: VPN Summary 50
Figure 6-48: VPN Tunnel Details 50
Figure 6-49: Types of VPN Tunnels 50
Figure 6-50: GroupVPN List 51
Figure 6-51: Gateway to Gateway 52
Figure 6-52: Local Security Gateway Type - IP Only 53
Figure 6-53: Local Security Gateway Type -

IP + Domain Name (FQDN) Authentication 53

Figure 6-54: Local Security Gateway Type -

IP + E-mail Addr. (USER FQDN) Authentication 53

Figure 6-55: Local Security Gateway Type -

Dynamic IP + Domain Name (FQDN) Authentication 53

Figure 6-56: Local Security Gateway Type -

Dynamic IP + E-mail Addr. (USER FQDN) Authentication 53
Figure 6-57: Local Security Group Type - IP 53
Figure 6-58: Local Security Group Type - Subnet 53
Figure 6-59: Local Security Group Type - IP Range 54
Figure 6-60: Remote Security Gateway Type - IP Only 54
Figure 6-61: Remote Security Gateway Type -

IP + Domain Name (FQDN) Authentication 54
Figure 6-62: Remote Security Gateway Type -

IP + E-mail Addr. (USER FQDN) Authentication 54
Figure 6-63: Remote Security Gateway Type -

Dynamic IP + Domain Name (FQDN) Authentication 55
Figure 6-64: Remote Security Gateway Type -

Dynamic IP + E-mail Addr. (USER FQDN) Authentication 55
Figure 6-65: Remote Security Group Type - IP 55

10/100 16-Port VPN Router

Figure 6-66: Remote Security Group Type - Subnet 55
Figure 6-67: Remote Security Group Type - IP Range 55
Figure 6-68: IPSec Setup - IKE with Preshared Key 56
Figure 6-69: IPSec Setup - Manual 57
Figure 6-70: IKE with Preshared Key - Advanced 58
Figure 6-71: Client to Gateway 59
Figure 6-72: Local Security Gateway Type - IP Only 60
Figure 6-73: Local Security Gateway Type -

IP + Domain Name (FQDN) Authentication 60
Figure 6-74: Local Security Gateway Type -

IP + E-mail Addr. (USER FQDN) Authentication 61
Figure 6-75: Local Security Gateway Type -

Dynamic IP + Domain Name (FQDN) Authentication 61
Figure 6-76: Local Security Gateway Type -

Dynamic IP + E-mail Addr. (USER FQDN) Authentication 61
Figure 6-77: Local Security Group Type - IP 61
Figure 6-78: Local Security Group Type - Subnet 61
Figure 6-79: Local Security Group Type - IP Range 61
Figure 6-80: Remote Client for VPN Tunnel - IP Only 62
Figure 6-81: Remote Client for VPN Tunnel -

IP + Domain Name (FQDN) Authentication 62
Figure 6-82: Remote Client for VPN Tunnel -

IP + E-mail Addr. (User FQDN) Authentication 62
Figure 6-83: Remote Client for VPN Tunnel -

Dynamic IP + Domain Name (FQDN) Authentication 62
Figure 6-84: Remote Client for VPN Tunnel -

Dynamic IP + E-mail Addr. (User FQDN) Authentication 63
Figure 6-85: Remote Client for Group VPN - Domain Name (FQDN) 63
Figure 6-86: Remote Client for Group VPN - E-mail Address (USER FQDN) 63
Figure 6-87: Remote Client for Group VPN - Microsoft XP/2000 VPN Client 63

10/100 16-Port VPN Router

Figure 6-88: IPSec Setup - IKE with Preshared Key 64
Figure 6-89: IPSec Setup - Manual 65
Figure 6-90: IKE with Preshared Key - Advanced 66
Figure 6-91: VPN Pass Through 68
Figure 6-92: System Log 69
Figure 6-93: View All Logs 70
Figure 6-94: View VPN Log 70
Figure 6-95: View Outgoing Log Table 70
Figure 6-96: View Incoming Log Table 70
Figure 6-97: System Statistics 71
Figure 6-98: Wizard 72
Figure 6-99: Basic Setup Wizard - Change Number of WAN Ports 72
Figure 6-100: Change Number of WAN Ports 72
Figure 6-101: Save Settings 73
Figure 6-102: Basic Setup Wizard - Edit Network Settings 73
Figure 6-103: Host and Domain Name 73
Figure 6-104: WAN Connection Type 74
Figure 6-105: Obtain an IP Automatically 74
Figure 6-106: Static IP 75
Figure 6-107: Static IP - DNS Servers 75
Figure 6-108: PPPoE 76
Figure 6-109: PPPoE - Connect on Demand or Keep Alive 76
Figure 6-110: DMZ 77
Figure 6-111: Save Settings 77
Figure 6-112: Access Rules 78
Figure 6-113: Action 78
Figure 6-114: Service 79
Figure 6-115: Log 79
Figure 6-116: Source 79
Figure 6-117: Destination 80

10/100 16-Port VPN Router

Figure 6-118: Scheduling 80
Figure 6-119: Save Settings 80
Figure 6-120: Support 81
Figure 6-121: Logout 81
Figure B-1: Upgrade Firmware 97
Figure C-1: IP Configuration Screen 98
Figure C-2: MAC Address/Adapter Address 98
Figure C-3: MAC Address/Physical Address 99
Figure C-4: MAC Clone 99
Figure C-5: Edit MAC Clone 99
Figure D-1: Mounting Brackets 100
Figure D-2: Attaching the Brackets to the Router and Rack-Mounting

the Router 101
Figure D-3: Wall-Mounting the Router 102
Figure D-4: Wall-Mounting Hardware 103

10/100 16-Port VPN Router

Chapter 1: Introduction

Welcome

Thank you for choosing the 10/100 16-Port VPN Router. The Linksys 10/100 16-Port VPN Router is an advanced
Internet-sharing network solution for your small business needs. Like any router, it lets multiple computers in
your office share an Internet connection, but the 16 ports on this Router feature unprecedented versatility. Two
are dedicated Internet ports that let you connect a second Internet line as a backup to ensure that you're never
disconnected. Or, you can use both Internet ports at the same time, and let the router balance your office's
requirements between them for maximum bandwidth efficiency.

Not enough? Up to five of the thirteen full-duplex switched 10/100 Ethernet ports can be reconfigured as Internet
ports, for an up to seven-port failover or load balanced redundancy! Finally, a dedicated DMZ port gives you a
publicly accessible channel so you can set up a web or FTP server, unimpeded by the powerful security features
of the Router.

The Virtual Private Network (VPN) capability creates encrypted “tunnels” through the Internet, allowing up to 50
remote office or traveling users to securely connect into your office network from off-site. Users connecting
through a VPN tunnel are attached to your company's network -- with secure access to files, e-mail, and your
intranet -- just as if they were in the building. You can also use the VPN capability to allow users on your small
office network to securely connect out to a corporate network.

The 10/100 16-Port VPN Router can serve as a DHCP server, and has a powerful SPI firewall to protect your PCs
against intruders and most known Internet attacks. It can be configured to filter internal users' access to the
Internet, and has IP address filtering so you can specify exactly who has access to your network. Configuration is
a snap with the web browser-based configuration utility.

As the heart of your small office network, the connection-redundant Linksys 10/100 16-Port VPN Router gives you
the connection reliability your business needs.

Use the instructions in this Guide to help you connect the Router , set it up, and configure it to bridge your different
networks. These instructions should be all you need to get the most out of the 10/100 16-Port VPN Router.

Ethernet: an IEEE standard network protocol
that specifies how data is placed on and
retrieved from a common transmission
medium.

VPN (Virtual Private Network): A security
measure to protect data as it leaves one
network and goes to another over the Internet.

Chapter 1: Introduction
Welcome

1

10/100 16-Port VPN Router

What’s in this Guide?

This user guide covers the steps for setting up and using the 10/100 16-Port VPN Router.

• Chapter 1: Introduction

This chapter describes the 10/100 16-Port VPN Router applications and this User Guide.

• Chapter 2: Networking Basics

This chapter describes the basics of networking.

• Chapter 3: Getting to Know the 10/100 16-Port VPN Router

This chapter describes the physical features of the Router.

• Chapter 4: Connecting the 10/100 16-Port VPN Router

This chapter instructs you on how to connect the Router to your network.

• Chapter 5: Configuring the PCs

This chapter explains how to configure the PCs for your network.

• Chapter 6: Setting up and Configuring the Router

This chapter explains how to use the Web-based Utility to set up the Router and configure its settings.

• Appendix A: Troubleshooting

This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the 10/100 16-Port VPN Router.

• Appendix B: Upgrading Firmware

This appendix instructs you on how to upgrade the firmware on your Router if you should need to do so.

• Appendix C: Finding the MAC Address and IP Address for your Ethernet Adapter.

This appendix describes how to find the MAC address for your computer’s Ethernet adapter so you can use
the MAC address cloning feature of the Router.

• Appendix D: Physical Setup of the Router

This appendix describes the physical setup of the Router, including installation of the mounting brackets.

• Appendix E: Battery Replacement

This appendix explains how to replace the Router’s battery.

• Appendix F: Windows Help

This appendix describes how you can use Windows Help for instructions about networking, such as installing
the TCP/IP protocol.

Chapter 1: Introduction
What’s in this Guide?

2

10/100 16-Port VPN Router

• Appendix G: Glossary

This appendix gives a brief glossary of terms frequently used in networking.

• Appendix H: Specifications

This appendix provides the technical specifications for the Router.

• Appendix I: Warranty Information

This appendix supplies the warranty information for the Router.

• Appendix J: Regulatory Information

This appendix supplies the regulatory information regarding the Router.

• Appendix K: Contact Information

This appendix provides contact information for a variety of Linksys resources, including Technical Support.

Chapter 1: Introduction
What’s in this Guide?

3

10/100 16-Port VPN Router

Chapter 2: Networking Basics

An Introduction to LANs

A Router is a network device that connects two networks together.
The Router connects your local area network (LAN), or the group of PCs in your home or office, to the Internet. The

Router processes and regulates the data that travels between these two networks.
The Router’s Stateful Packet Inspection (SPI) firewall and Network Address Translation (NAT) technology protects

your network of PCs so users on the Internet cannot “see” your PCs. This is how your LAN remains private. The
Router protects your network by inspecting the first packet coming in through the Internet port before delivery to
the final destination on one of the Ethernet ports. The Router inspects Internet port services like the web server,
ftp server, or other Internet applications, and, if allowed, it will forward the packet to the appropriate PC on the
LAN side.

The Use of IP Addresses

IP stands for Internet Protocol. Every device in an IP-based network, including PCs, print servers, and routers,
requires an IP address to identify its location, or address, on the network. This applies to both the Internet and
LAN connections.

There are two ways of assigning IP addresses to your network devices.
A static IP address is a fixed IP address that you assign manually to a PC or other device on the network. Since a

static IP address remains valid until you disable it, static IP addressing ensures that the device assigned it will
always have that same IP address until you change it. Static IP addresses are commonly used with network
devices such as server PCs or print servers.

If you use the Router to share your cable or DSL Internet connection, contact your ISP to find out if they have
assigned a static IP address to your account. If so, you will need that static IP address when configuring the
Router. You can get the information from your ISP.

A dynamic IP address is automatically assigned to a device on the network. These IP addresses are called
dynamic because they are only temporarily assigned to the PC or other device. After a certain time period, they
expire and may change. If a PC logs onto the network (or the Internet) and its dynamic IP address has expired, the
DHCP server will assign it a new dynamic IP address.

LAN (Local Area Network): the
computers and networking products
that make up the network in your home
or office.

NAT (Network Address Translation):
NAT technology translates IP
addresses of a local area network to a
different IP address for the Internet.

SPI (Stateful Packet Inspection)
firewall: a technology that inspects

every incoming packet of information
before allowing it to enter the network.

Static IP address: a fixed address
assigned to a computer or device that
is connected to a network.

Dynamic IP address: a temporary IP
address assigned by a DHCP server.

DHCP (Dynamic Host Configuration
Protocol): a protocol that lets one

device on a local network, known as a
DHCP server, assign temporary IP
addresses to the other network
devices, typically computers.

Chapter 2: Networking Basics
An Introduction to LANs

4

10/100 16-Port VPN Router

A DHCP server can either be a designated PC on the network or another network device, such as the Router. By
default, the Router’s Internet Connection Type is Obtain an IP automatically (DHCP).

The PC or network device obtaining an IP address is called the DHCP client. DHCP frees you from having to assign
IP addresses manually every time a new user is added to your network.

For DSL users, many ISPs may require you to log on with a user name and password to gain access to the
Internet. This is a dedicated, high-speed connection type called Point to Point Protocol over Ethernet (PPPoE).
PPPoE is similar to a dial-up connection, but PPPoE does not dial a phone number when establishing a
connection. It also will provide the Router with a dynamic IP address to establish a connection to the Internet.

By default, a DHCP server (on the LAN side) is enabled on the Router. If you already have a DHCP server running
on your network, you MUST disable one of the two DHCP servers. If you run more than one DHCP server on your
network, you will experience network errors, such as conflicting IP addresses. To disable DHCP on the Router,
see the Basic Setup section in “Chapter 6: Setting up and Configuring the Router.”

Why do I need a VPN?

Computer networking provides a flexibility not available when using an archaic, paper-based system. With this
flexibility, however, comes an increased risk in security. This is why firewalls were first introduced. Firewalls
help to protect data inside of a local network. But what do you do once information is sent outside of your local
network, when e-mails are sent to their destination, or when you have to connect to your company's network
when you are out on the road? How is your data protected?

That is when a VPN can help. VPNs are called Virtual Private Networks because they secure data moving outside
of your network as if it were still within that network.

When data is sent out across the Internet from your computer, it is always open to attacks. Y ou may already ha ve
a firewall, which will help protect data moving around or held within your network from being corrupted or
intercepted by entities outside of your network, but once data moves outside of your network -- when you send
data to someone via e-mail or communicate with an individual over the Internet -- the firewall will no longer
protect that data.

At this point, your data becomes open to hackers using a variety of methods to steal not only the data you are
transmitting but also your network login and security data. Some of the most common methods are as follows:

1. MAC Address Spoofing
Packets transmitted over a network, either your local network or the Internet, are preceded by a packet header.

These packet headers contain both the source and destination information for that packet to transmit efficiently.

VPN (Virtual Private Network): A security
measure to protect data as it leaves one
network and goes to another over the Internet.

NOTE: Since the Router is a device that connects two
networks, it needs two IP addresses—one for the LAN,
and one for the Internet. In this User Guide, you’ll see
references to the “Internet IP address” and the “LAN IP
address.”

Since the Router uses NAT technology, the only IP
address that can be seen from the Internet for your
network is the Router’s Internet IP address. However,
even this Internet IP address can be blocked, so that the
Router and network seem invisible to the Internet.

Chapter 2: Networking Basics
Why do I need a VPN?

5

10/100 16-Port VPN Router

A hacker can use this information to spoof (or fake) a MAC address allowed on the network. With this spoofed
MAC address, the hacker can also intercept information meant for another user.

2. Data Sniffing
Data “sniffing” is a method used by hackers to obtain network data as it travels through unsecured networks,

such as the Internet. Tools for just this kind of activity, such as protocol analyzers and network diagnostic tools,
are often built into operating systems and allow the data to be viewed in clear text.

3. Man in the middle attacks
Once the hacker has either sniffed or spoofed enough information, he can now perform a “man in the middle”

attack. This attack is performed, when data is being transmitted from one network to another, by rerouting the
data to a new destination. Even though the data is not received by its intended recipient, it appears that way to
the person sending the data.

These are only a few of the methods hackers use and they are always developing more. Without the security of
your VPN, your data is constantly open to such attacks as it travels over the Internet. Data travelling over the
Internet will often pass through many different servers around the world before reaching its final destination.
That's a long way to go for unsecured data and this is when a VPN serves its purpose.

What is a VPN?

A VPN, or Virtual Private Network, is a connection between two endpoints - a VPN Router, for instance - in
different networks that allows private data to be sent securely over a shared or public network, such as the
Internet. This establishes a private network that can send data securely between these two locations or
networks.

This is done by creating a “tunnel”. A VPN tunnel connects the two PCs or networks and allows data to be
transmitted over the Internet as if it were still within those networks. Not a literal tunnel, it is a connection
secured by encrypting the data sent between the two networks.

VPN was created as a cost-effective alternative to using a private, dedicated, leased line for a private network.
Using industry standard encryption and authentication techniques - IPSec, short for IP Security - the VPN creates
a secure connection that, in effect, operates as if you were directly connected to your local network. Virtual
Private Networking can be used to create secure networks linking a central office with branch offices,
telecommuters, and/or professionals on the road (travelers can connect to a VPN Router using any computer with
VPN client software that supports IPSec, such as SSH Sentinel.)

There are two basic ways to create a VPN connection:

Chapter 2: Networking Basics
What is a VPN?

6

10/100 16-Port VPN Router

• VPN Router to VPN Router

• Computer (using VPN client software that supports IPSec) to VPN Router
The VPN Router creates a “tunnel” or channel between two endpoints, so that data transmissions between them

are secure. A computer with VPN client software that supports IPSec can be one of the two endpoints. Any
computer with the built-in IPSec Security Manager (Microsoft 2000 and XP) allows the VPN Router to create a VPN
tunnel using IPSec). Other versions of Microsoft operating systems require additional, third-party VPN client
software applications that support IPSec to be installed.

VPN Router to VPN Router

An example of a VPN Router-to-VPN Router VPN would be as follows. (See Figure 2-1.) At home, a telecommuter
uses his VPN router for his always-on Internet connection. His router is configured with his office's VPN settings.
When he connects to his office's 10/100 16-Port VPN Router, the two routers create a VPN tunnel, encrypting and
decrypting data. As VPNs utilize the Internet, distance is not a factor. Using the VPN, the telecommuter now has a
secure connection to the central office's network, as if his computer were physically connected.

Computer to VPN Router

The following is an example of a computer-to-VPN Router VPN. (See Figure 2-2.) In her hotel room, a traveling
businesswoman dials up her ISP. Her notebook computer has VPN client software that is configured with her
office's VPN settings. She accesses the VPN client software that supports IPSec and connects to the 10/100
16-Port VPN Router at the central office. As VPNs utilize the Internet, distance is not a factor. Using the VPN, the
businesswoman now has a secure connection to the central office's network, as if her computer were physically
connected.

For additional information and instructions about creating your own VPN, please visit Linksys’s website at
www.linksys.com.

Chapter 2: Networking Basics
What is a VPN?

Figure 2-1: VPN Router-to-VPN Router VPN

Figure 2-2: Computer-to-VPN Router VPN

7

10/100 16-Port VPN Router

Chapter 3: Getting to Know the Router

The Front Panel

The Router’s LEDs, Ethernet ports, and Reset button are located on the front panel of the Router.

Figure 3-1: Front Panel

LEDs

DIAG Orange. The DIAG LED lights up when the system is not ready. The LED turns off when

the system is ready.

System Green. The System LED lights up when the Router is powered on. When the LED is

flashing, the Router is running a diagnostic test.

LAN/Act (1-13) Green. Each LAN/Act LED serves two purposes. If the LED is continuously lit, the Router

is connected to a device through the corresponding port (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12, 13). If the LED is flashing, the Router is actively sending or receiving data over that
port.

LAN/Act LEDs 9-13 and Internet/Act LEDs 3-7 represent the dual-function ports, which
can be used as LAN or Internet ports. These are LAN ports 9-13 (white print) or Internet
ports 3-7 (dark print) on the Router’s front panel.

Internet/Act (1-7) Green. Each Internet/Act LED serves two purposes. If the LED is continuously lit, the

Router is connected to an Internet device, such as a cable or DSL modem, through the
corresponding port. If the LED is flashing, the Router is actively sending or receiving
data over that port.

Chapter 3: Getting to Know the Router
The Front Panel

8

10/100 16-Port VPN Router

Internet/Act LEDs 1 and 2 are labeled Internet because they can be used only as
Internet ports.

DMZ Orange. The DMZ LED serves two purposes. If the LED is continuously lit, the Router is

connected to a DMZ host through the DMZ port. If the LED is flashing, the Router is
actively sending or receiving data over that port.

Ports

1-13 (LAN) These thirteen LAN Ethernet ports connect to network devices, such as PCs, print

servers, or additional switches.
LAN ports 9-13 can also be used as Internet ports.

Internet (1-7) The seven Internet Ethernet ports connect to an Internet device, such as a cable or DSL

modem.
Internet ports 1 and 2 are labeled Internet because they can be used only as Internet

ports. When used as an additional Internet port, it connects to a cable or DSL modem.
Internet ports 3-7 can also be used as LAN ports.

DMZ The DMZ Ethernet port connects to a hub, switch, or public server.

Button

Reset Button The Reset button can be used in one of two ways:

If the Router is having problems connecting to the Internet, press the Reset button with
a paper clip or a pencil tip for four seconds. This performs a warm reset, similar to
rebooting your PC. You will see the Diag LED flash slowly until the warm reset is
complete.

If you are experiencing extreme problems with the Router and have tried all other
troubleshooting measures, press and hold in the Reset button for ten seconds. This will
restore the factory defaults and clear all of the Router’s settings, such as port range
forwarding entries or a new password. Y ou will see the Diag LED flash quickly until the
factory defaults have been restored.

Chapter 3: Getting to Know the Router
The Front Panel

9

10/100 16-Port VPN Router

The Back Panel

The Router’s Power port is located on the back panel of the Router.

Figure 3-2: Back P anel

Power The Power port is where you connect the p ower adapter.

Proceed to “Chapter 4: Connecting the Router.”

Chapter 3: Getting to Know the Router
The Back Panel

10

10/100 16-Port VPN Router

Chapter 4: Connecting the Router

Overview

To set up your network, you will do the following:

• Connect the Router to one of your PCs according to the instructions in this chapter.

• If necessary, configure your PCs to obtain an IP address automatically from the Router, according to “Chapter
5: Configuring the PCs. ” (By default, Windows 98, 2000, Millennium, and XP computers are set to obtain an IP
address automatically, so unless you have changed the default setting, then you will not need to configure
your PCs.)

• Set up and configure the Router with the setting(s) provided by your Internet Service Provider (ISP) according
to “Chapter 6: Set up and Configure the Router.”

The installation technician from your ISP should have left the setup information with you after installing your
broadband connection. If not, you can call your ISP to request the information. Once you have the setup
information for your specific type of Internet connection, then you can begin installation and setup of the Router.

Internet

Chapter 4: Connecting the Router
Overview

Cable or DSL

Modem

Figure 4-1: Example of a Typical Network

10/100 16-Port

VPN Router

Notebook with

Ethernet Adapter

PC with

Ethernet Adapter

11

10/100 16-Port VPN Router

Connection Instructions

1. Before you begin, make sure that all of your hardware is powered off, including the Router, PCs, hubs,
switches, and cable or DSL modem.

2. Connect one end of an Ethernet network cable to one of the numbered ports on the front of the Router (see
Figure 4-2). Connect the other end to an Ethernet port on a network device, e.g., a PC, print server, hub, or
switch.

Repeat this step to connect more PCs or other network devices to the Router.

3. Connect your cable or DSL modem’s Ethernet cable to one of the Router’s Internet ports.
Repeat this step to connect additional Internet devices to the Router’s other Internet ports.

4. If you want to use the DMZ port, connect an Ethernet cable to it, and connect the other end to the
appropriate network device, such as a public server.

Figure 4-2: Connect a PC

5. Power on the cable or DSL modem and the other network device(s).

6. Connect the included power cord to the Router’s Power port on the back of the Router, as shown in Figure 4­4, and then plug the power cord into an electrical outlet.

The System LED on the front panel will light up as soon as the power adapter is connected properly.

If you need to configure your PCs, proceed to “Chapter 5: Configuring the PCs.” Otherwise, proceed to

“Chapter 6: Setting up and Configurin g the Router.”

Chapter 4: Connecting the Router
Connection Instructions

Figure 4-3: Connect the Internet

Figure 4-4: Connect the DMZ

Figure 4-5: Connect the Power

12

10/100 16-Port VPN Router

Chapter 5: Configuring the PCs

Overview

The instructions in this chapter will help you configure each of your computers so they will be able to
communicate with the Router. Each PC must be set to obtain an IP address (or TCP/IP) address automatically
(called DHCP). Computers use IP addresses to communicate with each other across a network or the Internet.

Note: These instructions apply only to Windows 98, Millennium, 2000, or XP computers. By default,
Windows 98, 2000, Millennium, and XP have TCP/IP installed and are set to obtain an IP address
automatically. If you ha ve not made any c hanges to your PC’s default network settings, then proceed
to “Chapter 6: Setting up and Configuring the Router.”

Find out which operating system your computer is running, such as Windows 98, Millennium, 2000, or XP. If
you’re not sure, you can find out by clicking the Start button. On the left side of the taskbar, it will say which
operating system your computer is using.

You may need to do this for each computer you are connecting to the Router.
The next few pages tell you, step by step, how to configure your network settings based on the type of Windows

operating system you are using. Make sure that an Ethernet card or adapter has been successfully installed in
each PC you will configure. Once you’ve configured your computers, proceed to “Chapter 6: Setting up and
Configuring the Router.”

Configuring Windows 98 and Millennium PCs

1. Click the Start button. Click Settings and then Control Panel. From there, double-click the Network icon.

2. On the Configuration tab, select the TCP/IP line for the applicable Ethernet adapter, as shown in Figure 5-1.
Do not choose a TCP/IP entry whose name mentions Dial-Up Adapter, PPPoE, VPN, or AOL. If the word TCP/IP
appears by itself, select that line. (If there is no TCP/IP line listed, refer to Windows Help or your Ethernet
adapter’s documentation to install TCP/IP now.) Click the Properties button.

3. Click the IP Address tab and select Obtain an IP address automatically, as shown in Figure 5-2.

4. Now click the Gateway tab to ensure that the Installed Gateway field is left blank. Click the OK button.

Chapter 5: Configuring the PCs
Overview

Figure 5-1: TCP/IP for Windows 98

and Me

Figure 5-2: Obtain an IP address

automatically for Windows 98

and Me

13

10/100 16-Port VPN Router

5. Click the OK button again. Windows may ask you for the original Windows installation disk or additional files.
Supply them by pointing to the correct file location, e.g., D:\win98, D:\win9x, c:\windows\options\cabs, etc. (if
“D” is the letter of your CD-ROM drive).

6. Windows may ask you to restart your PC. Click the Yes button. If Windows does not ask you to restart, restart
your computer anyway.

Go to “Chapter 6: Setting up and Configuring the Router.”

Configuring Windows 2000 PCs

1. Click the Start button. Click Settings and then Contr ol Panel. From there, double-click the Network and
Dial-up Connections icon.

2. Select the Local Area Connection icon for the applicable Ethernet adapter (usually it is the first Local Area
Connection listed). Double-click the Local Area Connection. Click the Properties button.

3. Select Internet Protocol (TCP/IP), and click the Properties button. See Figure 5-3.

4. Select Obtain an IP address automatically (see Figure 5-4). Once the new windows appears, click the OK
button. Click the OK button again to complete the PC configuration.

5. Restart your computer.

Go to “Chapter 6: Setting up and Configuring the Router.”

Configuring Windows XP PCs

The following instructions assume you are running Windows XP with the default interface. If you are using the
Classic interface (where the icons and menus look like previous Windows versions), follow the instructions for
Windows 2000.

1. Click the Start button. Click Settings and then Control Pan el. Clic k the Network and Internet Connections
icon and then the Network Connections icon.

2. Select the Local Area Connection icon for the applicable Ethernet adapter (usually it is the first Local Area
Connection listed). Double-click the Local Area Connection. Click the Properties button.

Figure 5-3: Internet Protocol

(TCP/IP) for Windows 2000

Figure 5-4: Obtain an IP address

automatically for Windows 2000

Chapter 5: Configuring the PCs
Configuring Windows 2000 PCs

14

10/100 16-Port VPN Router

3. Select Internet Protocol (TCP/IP), and click the Properties button. See Figure 5-5.

4. Select Obtain an IP address automatically (see Figure 5-6). Once the new window appears, click the OK
button. Click the OK button again (or the Close button if any settings were changed) to complete the PC
configuration.

5. Restart your computer.

Go to “Chapter 6: Setting up and Configuring the Router.”

Figure 5-5: Internet Protocol

(TCP/IP) for Windows XP

Chapter 5: Configuring the PCs
Configuring Windows XP PCs

Figure 5-6: Obtain an IP address

automatically for Windows XP

15

10/100 16-Port VPN Router

Chapter 6: Setting up and Configuring the Router

Overview

For your convenience, use the Router’s W eb-based Utility to set it up and configur e it. This chapter will explain all
of the functions in this Utility.

There are eleven main tabs in the Utility: System Summary, Setup, DHCP, System Management, Port
Management, Firewall, VPN, Log, Wizard, Support, and Logout. Additional tabs will be available after you click
one of the main tabs. The tabs are described below:

System Summary Tab

The System Summary tab displays the Router’s current status and settings. This information is read-only. If you
click any underlined text, the related setup page will appear.

Setup Tab

• Network. Enter the Internet connection and network settings on this screen.

• Password. You can change the Router’s passw ord on this screen. It is strongly recommended that you change
the Router's password from the default.

• Time. On this screen, configur e the Router’s time settings. You can set the time, select a time zone, enable or
disable the Daylight Savings feature, and configure the NTP (Network Time Protocol) settings.

• DMZ Host. The DMZ (Demilitarized Zone) Host feature allows one local user to be exposed to the Internet for
use of a special-purpose service such as Internet gaming or video conferencing.

• Forwarding. Port forwarding can be used to set up public services on your network. Y ou may use this function
to establish a web server or FTP server via an IP gateway.

• UPnP. UPnP (Universal Plug and Play) forwarding can be used to set up public services on your network.

• One-to-One NAT. One-to-One NAT (Network Address Translation) creates a relationship that maps valid
external addresses to internal addresses hidden by NAT.

• MAC Clone. Some ISPs require that you register a MAC address. This feature “clones” your network adapter's
MAC address onto the Router , so you don’t have to call your ISP and change the registered MAC address to the
Router's MAC address.

Chapter 6: Setting up and Configuring the Router
Overview

16

10/100 16-Port VPN Router

• DDNS. DDNS (Dynamic Domain Name Service) service allows you to assign a fixed domain name to a dynamic
WAN IP address. This allows you to host your own web, FTP, or other type of TCP/IP server in your LAN.

• Advanced Routing. On this screen, you can enable the Router’s dynamic routing feature so it will
automatically adjust to physical changes in the network's layout. You can also set up static routes.

DHCP Tab

• Setup. You can enable/disable the DHCP server, set up client lease time, configure the DHCP IP range, assign
static IP addresses to specific clients, assign DNS server(s) to clients, and enter the WINS server IP address.

• Status. A Status page is available to review the status of the DHCP server and its clients.

System Management Tab

• Multi-WAN. There are two modes provided for the Load Balance function – Intelligent Balancer (Auto Mode)
and IP Group (By Users).

• SNMP. SNMP (Simple Network Management Protocol) is a network protocol that provides network
administrators with the ability to monitor the status of the Router and receive notification of any critical
events as they occur on the network. (SNMP can only be used to monitor and configure the Router from inside
the local network.)

• Diagnostic. The Router has two built-in tools that will help with troubleshooting network problems.

• Factory Default. Use this screen to clear all of your configuration information and restore the Router to its
factory default settings. Only use this feature if you want to remove all of your custom configuration settings.

• Firmware Upgrade. You can use this screen to upgrade the Router’s firmware to the latest version.

• Restart. The recommended method of restarting the Router is to use the Restart tool available on this page.
When you use this method, the Router will send out your log file before it is reset.

• Setting Backup. This tab allows you to make a backup file of your configuration file for the Router.

Port Management Tab

• Port Setup. You can configure the connection settings for each port, such as priority, speed, duplex, and auto
negotiation.

• Port Status. You can select a port number to view its settings.

Chapter 6: Setting up and Configuring the Router
Overview

17

10/100 16-Port VPN Router

Firewall Tab

• General. Use this screen to enable or disable various firewall and security features, including SPI (Stateful
Packet Inspection), DoS (Denial of Service), and Remote Management.

• Access Rules. Access Rules evaluate the network traffic's source IP address, destination IP address, and IP
protocol type to decide whether the IP traffic is allowed to pass through the firewall. You can set up custom
Access Rules from this screen.

• Content Filter. This tab allows you to filter web access according to a list of forbidden domains and a
schedule.

VPN T ab

• Summary. This screen displays the Summary, Tunnel Status, and GroupVPN Status settings and information.

• Gateway to Gateway. Use this screen to create a new tunnel between two VPN devices.

• Client to Gateway. From this screen, create a new tunnel between a local VPN device and a mobile user , or set
up a Group VPN.

• VPN Pass Through. This tab allows you to disable IPSec, PPTP, and/or L2TP Pass Through.

Log Tab

• System Log. The System Log displays the syslog, e-mail alert, and log settings.

• System Statistics. This tab displays the system statistics.

Wizard Tab

• Wizard. Use this tab to access two Setup Wizards, the Basic Setup Wizard and Access Rule Setup Wizard.

Support Tab

• Support. Use this screen to conveniently access this User Guide and the Linksys website.

Logout Tab

• Logout. Click the Logout tab to exit the Utility.

Chapter 6: Setting up and Configuring the Router
Overview

18

10/100 16-Port VPN Router

How to Access the Web-based Utility

To access the Web-based Utility of the Router, launch Internet Explorer or Netscape Navigator, and enter the
Router’s default IP address, 192.168.1.1, in the Address field, as shown in Figure 6-1. Press the Enter key.

A screen will appear asking you for your User Name and Password, as shown in Figure 6-2. Enter admin in the

User Name field, and enter admin in the Password field. Then click the OK button.

System Summary Tab

The first screen that appears is the System Summary tab, which displays the Router’s current status and settings.
(See Figure 6-3.) This information is read-only. Underlined text is hyperlinked to related setup pages, so if you
click a hyperlink, the related setup screen will appear. On the right-hand side of this screen and all other screens
of the Utility is a link to the Site Map, which has links to all of the Utility’s tabs. Clic k the Si te M ap button to view
the Site Map, which is shown in Figure 6-4. Then, click the desired tab.

System Information

Serial Number. The serial number of the Router.
Firmware version. The current version number of the firmware installed on the Router.
CPU. The type and speed of the processor installed on the Router.
DRAM. The size of DRAM installed on the Router’s motherboard.
Flash. The size of flash memory installed on the Router’s board.

Figure 6-1: Router’s IP Address

Figure 6-2: Login Screen

System Up Time. The length of time in days, hours, and minutes that the Router has been active. The current time
and date are also displayed.

Configuration

If you need help to set up the Router, click the Setup Wizard button. For more details, see the Wizard T ab section.

Chapter 6: Setting up and Configuring the Router
How to Access the Web-based Utility

Figure 6-3: System Summary

19

10/100 16-Port VPN Router

Port Statistics

Click any port on the Router’s front panel image to see the status of the selected port. If the port is disabled, it will
be red; if enabled, it will be black. If the port is connected, it will be green. Information about the selected port
will appear in a separate window. The port’ s Summary table will show the settings of the selected port, including
Type, Interface, Link Status, Port Activity, Priority, Speed Status, Duplex Status, and Auto negotiation. For the
selected port, the statistics table will show this information: number of packets received, number of packet bytes
received, number of packets transmitted, number of packet bytes transmitted, and number of packet errors. To
update the on-screen information, click the Refresh button. To exit this screen, click the Close button.

Network Setting Status

LAN IP. It shows the current LAN IP Address of the Router, as seen by internal users on the network, and it
hyperlinks to the LAN Setting section on the Network page of the Setup tab.

WAN IP. These show the current WAN IP Addresses for the WAN ports of the Router, as seen by external users on
the Internet. These hyperlink to the WAN setting on the Network page of the Setup tab. If a WAN port is set to
Obtain an IP automatically, two buttons, Release and Renew, will be available . Click the Release button to release
the IP address of a specific WAN port, and click the Renew button to update the DHCP Lease Time or get a new IP
address. If a WAN port is set to PPPoE or PPTP, two buttons, Connect and Disconnect, will be available.

DMZ IP. It shows the current IP Address of the Router’s DMZ port, as seen by external users on the Internet. It
hyperlinks to the DMZ setting on the Network page of the Setup tab.

Figure 6-4: Site Map

Mode. It shows the Router’s Working Mode (Gateway or Router), and it hyperlinks to the Dynamic Routing section
on the Advanced Routing page of the Setup tab.

DNS. It shows all DNS Server Addresses and hyperlinks to the WAN setting on the Network page of the Setup tab.
DDNS. It shows the DDNS settings of the Router’s WAN ports and hyperlinks to the DDNS page of the Setup tab.
DMZ Host. It shows the DMZ Private Address and hyperlinks to the DMZ Host page of the Setup tab. The default is

Disabled.

Firewall Setting Status

SPI (Stateful Packet Inspection). It shows the status (On/Off) of the SPI setting and hyperlinks to the General page
of the Firewall tab.

DoS (Denial of Service). It shows the status (On/Off) of the DoS setting and hyperlinks to the General page of the
Firewall tab.

Chapter 6: Setting up and Configuring the Router
System Summary Tab

Figure 6-5: Port Information

20

10/100 16-Port VPN Router

Block WAN Request. It shows the status (On/Off) of the Block WAN Request setting and hyperlinks to the General
page of the Firewall tab.

VPN Setting Status

VPN Summary. It hyperlinks to the Summary page of the VPN tab.
Tunnel(s) Used. It shows the number of VPN tunnels used.
Tunnel(s) Available. It shows the number of VPN tunnels available.
Current Connected (the Group Name of the GroupVPN) users. It shows the number of users. If GroupVPN is

disabled, the message, “No Group VPN was defined,” will be displayed.

Log Setting Status

It hyperlinks to the System Log page of the Log tab.
If you have not set up the e-mail server on the Log tab, the message, “E-mail cannot be sent because you have

not specified an outbound SMTP server address,” will be displayed.
If you have set up the mail server but the log has not been generated due to the Log Queue Length and Log Time

Threshold settings, the message, “E-mail settings have been configured,” will be displayed.
If you have set up the e-mail server and the log has been sent to the e-mail server , the message, “E-mail settings

have been configured and sent out normally,” will be displayed.
If you have set up the e-mail server and the log cannot be sent to the e-mail server , the message, “E-mail cannot

be sent out, probably use incorrect settings,” will be displayed.

Chapter 6: Setting up and Configuring the Router
System Summary Tab

21

10/100 16-Port VPN Router

Setup Tab - Network

The Setup screen shows all of the Router’ s basic setup functions. The Router can be used in most network setups
without changing any of the default values; however, you may need to enter additional information in order to
connect to the Internet through an ISP (Internet Service Provider) or broadband (DSL or cable) carrier.

Network

Host Name and Domain Name. Enter a host and domain name for the Router. Some ISPs require these names as
identification. You may have to check with your ISP to see if your broadband Internet service has been configured
with a host and domain name. In most cases, you can leave these fields blank.

LAN Setting

These are the Router’s Device IP Address and Subnet Mask. The default values are 192.168.1.1 for the local IP
address and 255.255.255.0 for the Subnet Mask.

WAN Setting

From the WAN Setting drop-down menu, select how many WAN ports you want to use. The default is 2, and the
maximum number is 7. You can also change the number of WAN ports using the Port Setup page of the Port
Management tab. If you change the number on this screen, then the number on the Port Setup screen will change
accordingly. Make sure the network configuration matches the number of WAN port settings on this screen.

Figure 6-6: Setup Tab

If you change the number of WAN ports, click the Save Settings button to save your change. A confirmation
message will appear. Then click the OK button to save the new setting.

The WAN Setting table will display the WAN port numbers in the Interface column and their respective connection
types in the Connection Type column. Click Edit in the Config. column to change the WAN settings of the selected
WAN port. You must save the new number of WAN ports before you can click Edit to change the settings of any
new WAN ports.

The Connection Type column will display the word “Undefined” if you changed the number of WAN ports but did
not click the Save Settings button. After you save this setting, the Connection T ype column will display, “Obtain an
IP automatically.” The default Connection Type of all WAN ports is Obtain an IP automatically.

WAN Setting Table

Interface. The WAN port number is displayed.

Chapter 6: Setting up and Configuring the Router
Setup Tab - Network

Figure 6-7: Save New Number of WAN Ports

22

10/100 16-Port VPN Router

Connection Type. There are four connection types available. They are described in more detail on the following
pages.

Config. Click Edit to change the selected WAN port’s WAN settings. In the Interface field, you will see the WAN
port number displayed. From the WAN Connection Type drop-down menu, choose one of the following: Obtain an
IP automatically, Static IP, PPPoE, or PPTP. Depending on which connection type you select, you will see
various settings.

Obtain an IP Automatically

If your ISP automatically assigns an IP address, select Obtain an IP automatically. Your ISP will assign these
values. If you check the box for Use the Following DNS Server Addresses, enter your DNS server IP address(es)
(you must enter at least one). Multiple DNS server IP settings are common. In most cases, the first available DNS
entry is used. Most cable modem subscribers use this connection type.

Static IP

If you are required to use a permanent IP address, select Static IP. Then enter your settings in the WAN IP
Address, Subnet Mask, Default Gateway Address, and DNS Server fields (at least one DNS Server IP address is
required). Check your service installation receipt for this information; otherwise, request these settings from
your ISP.

PPPoE (Point-to-Point Protocol over Ethernet)

Some DSL-based ISPs use PPPoE (Point-to-Point Protocol over Ethernet) to establish Internet connections for
end-users. If you use a DSL line, check with your ISP to see if they use PPPoE. If they do, you will have to enable
it. To enable PPPoE, follow these instructions:

1. Select PPPoE.

2. Enter your User Name and Password. The maximum number of characters is 60.

3. If you select the Connect on Demand option, the PPPoE connection will be disconnected after a specified
period of inactivity (Max Idle Time). If you have been disconnected due to inactivity, Connect on Demand
enables the Router to automatically re-establish your connection as soon as you attempt to access the
Internet again. Enter the number of minutes you want to have elapsed before your Internet access
disconnects. The default is 5 minutes.

Figure 6-8: Obtain an IP Automatically

Figure 6-9: Static IP

Figure 6-10: PPPoE

If you select the Keep Alive option, the Router will keep the connection alive by sending out a few data
packets periodically, so your ISP thinks that the connection is still active. This option keeps your
PPPoE-enabled connection active indefinitely, even when it sits idle. The default Redial Period is 30 seconds.

Chapter 6: Setting up and Configuring the Router
Setup Tab - Network

23

10/100 16-Port VPN Router

PPTP (Point-to-Point Tunneling Protocol)

Point to Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe and Israel only.

1. Enter your settings in the WAN IP Address, Subnet Mask, and Default Gateway Address fields. This
information is provided by your ISP.

2. Enter your User Name and Password. The maximum number of characters is 60.

3. If you select the Connect on Demand option, the PPPoE connection will be disconnected after a specified
period of inactivity (Max Idle Time). If you have been disconnected due to inactivity, Connect on Demand
enables the Router to automatically re-establish your connection as soon as you attempt to access the
Internet again. Enter the number of minutes you want to have elapsed before your Internet access
disconnects. The default is 5 minutes.

If you select the Keep Alive option, the Router will keep the connection alive by sending out a few data
packets periodically, so your Internet service thinks that the connection is still active. This option keeps your
PPPoE-enabled connection active indefinitely, even when it sits idle. The default Redial Period is 30 seconds.

DMZ Setting

The Router comes with a special DMZ port, which is used for setting up public servers. The DMZ port sits
between the local network ports and the Internet port. Servers on the DMZ are publicly accessible. Use of the
DMZ port is optional; it may be left unconnected.

Figure 6-11: PPTP

Using the DMZ is preferred and is, if practical, a strongly recommended alternative to using public LAN servers or
putting these servers on WAN ports where they are not protected and not accessible by users on the LAN.

Each of the servers on the DMZ will need a unique, public Internet IP address. The ISP you use to connect your
network to the Internet should be able to provide these addresses, as well as information on setting up public
Internet servers. If you plan to use the DMZ setting, contact your ISP for the static IP information.

Click Edit in the Config. column to edit the DMZ setting. The Edit DMZ Connection screen will appear.
In the Interface field, the DMZ port is displayed. Enter the DMZ port’s settings in the Specify DMZ IP Address and

Subnet Mask fields.
Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.

Chapter 6: Setting up and Configuring the Router
Setup Tab - Network

Figure 6-12: DMZ

24

10/100 16-Port VPN Router

Setup Tab - Password

The Router's default User Name and Password is admin, and it is strongly recommended that you change the
Router's password from the default to a unique password.

Old Password. Enter the old password. The default Password is admin when you first power up the Router.
(The password cannot be recovered if it is lost or forgotten. If the password is lost or forgotten, you have to reset

the Router to its factory default settings, which will remove all of your configuration changes.)
New Password. Enter a new password for the Router. Your password must have 15 or fewer characters and

cannot contain any spaces.
Confirm New Password. Re-enter the new password to confirm it.
Click the Save Settings button to save your new password, or click the Cancel Changes button to undo the

change.

Setup Tab - Time

The Router uses the time settings to time stamp log events, automatically update the Content Filter List, and
perform other activities for other internal purposes.

Figure 6-13: Password

To set the local time, select Set the local time using the Network Time Protocol (NTP) automatically or Set
the local time Manually.

Automatic

Select your time zone from the Time Zone drop-down menu. If you use Daylight Savings, then click the checkbox
and enter the appropriate dates. Enter the URL or IP address of the NTP server in the NTP Server field. The default
Time Zone is Pacific Time.

Manual

Enter the time in the Hours, Minutes, and Seconds fields. Then enter the date in the Month, Day, and Year fields.
Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

Chapter 6: Setting up and Configuring the Router
Setup Tab - Password

Figure 6-14: Time - Automatic

Figure 6-15: Time - Manual

25

10/100 16-Port VPN Router

Setup Tab - DMZ Host

The DMZ (Demilitarized Zone) Host feature allows one local user to be exposed to the Internet for use of a
special-purpose service such as Internet gaming or video conferencing. Although Port Range Forwarding can
only forward 10 ranges of ports maximum, DMZ hosting forwards all the ports to one PC at the same time.

In the DMZ Private IP Address field, enter the local IP address of the computer you want to expose. The default
value of 0 deactivates the DMZ Host.

Click the Save Settings button to save your change, or click the Cancel Changes button to undo the change.

Setup Tab - Forwarding

The Forwarding screen allows you to set up port range forwarding and port triggering applications. Port range
forwarding can be used to set up public services or other specialized Internet applications on your network, while
port triggering can be used to set up triggered ranges and forwarded ranges for Internet applications.

Port Range Forwarding

Port forwarding can be used to set up public services on your network. When users from the Internet make
certain requests on your network, the Router can forward those requests to computers equipped to handle the
requests. If, for example, you set the port number 80 (HTTP) to be forwarded to IP address 192.168.1.2, then all
HTTP requests from outside users will be forwarded to 192.168.1.2.

You may use this function to establish a web server or FTP server via an IP gateway. Make sure that you enter a
valid IP address. (You may need to establish a static IP address in order to properly run an Internet server.) For
added security, Internet users will be able to communicate with the server, but they will not actually be
connected. The packets will simply be forwarded through the Router.

1. Select the Service you want from the pull-down menu.

2. If the Service you need is not listed in the menu, click the Service Management button to add the new
service. The Service Management screen will appear. Enter a name in the Service Name field. From the

Protocol drop-down menu, select the protocol it uses. Enter its range in the Port Range fields. Click the Add
to List button. Then, click the Save Setting button to save your changes. Click the Cancel Changes button to
cancel your changes. Click the Exit button to return to the Forwarding screen.

Figure 6-16: DMZ Host

Figure 6-17: Forwarding

If you want to modify a service you have created, select it and click the Update this service button. Then,
click the Save Setting button to save your changes. Click the Exit button to return to the Forwarding screen.

Chapter 6: Setting up and Configuring the Router
Setup Tab - DMZ Host

26

10/100 16-Port VPN Router

If you want to delete a service you have created, select it and click the Delete selected service button. Then,
click the Save Setting button to save your changes. Click the Exit button to return to the Forwarding screen.

If you want to add another service, click the Add New button. Enter a name in the Service Name field. From
the Protocol drop-down menu, select the protocol it uses. Enter its range in the Port Range fields. Click the
Add to List button. Then, click the Save Setting button to save your changes. Click the Cancel Changes
button to cancel your changes. Click the Exit button to return to the Forwarding screen.

3. On the Forwarding screen, enter the IP address of the server that you want the Internet users to access. Then
click the Enable checkbox to enable this port range forwarding entry.

4. Click the Add to List button, and configure as many entries as you would like, up to a maximum of 30. To
delete an entry, select it and click the Delete selected application button.

Port Triggering

Port triggering allows the Router to watch outgoing data for specific port numbers. The IP address of the
computer that sends the matching data is remembered by the Router, so that when the requested data returns
through the Router, the data is pulled back to the proper computer by way of IP address and port mapping rules.

Some Internet applications or games use alternate ports to communicate between the server and LAN host.
When you want to use these applications, enter the triggering (outgoing) port and alternate incoming port in the
Port Triggering table. Then the Router will forward the incoming packets to the LAN host.

Figure 6-18: Service Management

1. For each application, complete the Application Name, Trigger Port Range, and Incoming Port Range fields.

2. Click the Add to List button, and configure as many entries as you would like, up to a maximum of 30. To
delete an entry, select it and click the Delete selected application button.

Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.
Click the Show Tables button to see the details of your port range forwarding and port triggering entries.

Chapter 6: Setting up and Configuring the Router
Setup Tab - Forwarding

27

10/100 16-Port VPN Router

Setup Tab - UPnP

UPnP, Universal Plug and Play, can be used to set up public services on your network. When the UPnP function is
enabled, Windows XP can modify these entries via UPnP.

1. Select Yes to enable the UPnP function.

1. Select the Service you want from the pull-down menu.

2. If the Service you need is not listed in the menu, click the Service Management button to add the new
service. A new screen will appear. Enter a name in the Service Name field. From the Protocol drop-down
menu, select the protocol it uses. Complete the Internal and External Port fields. Click the Add to List button.
Then, click the Save Setting button to save your changes. Click the Ca ncel Changes button to cancel your
changes. Click the Exit button to return to the UPnP screen.

If you want to modify a service you have created, select it and click the Update this service button. Then,
click the Save Setting button to save your changes. Click the Exit button to return to the UPnP screen.

If you want to delete a service you have created, select it and click the Delete selected service button. Then,
click the Save Setting button to save your changes. Click the Exit button to return to the UPnP screen.

If you want to add another service, click the Add New button. Enter a name in the Service Name field. From
the Protocol drop-down menu, select the protocol it uses. Complete the Internal and External Port fields. Click
the Add to List button. Then, click the Save Setting button to save your changes. Click the Cancel Changes
button to cancel your changes. Click the Exit button to return to the UPnP screen.

Figure 6-19: UPnP

3. On the UPnP screen, enter the name or IP address of the server that you want the Internet users to access.
Then click the Enable checkbox to enable this UPnP entry.

4. Click the Add to List button, and configure as many entries as you would like, up to a maximum of 30. To
delete an entry, select it and click the Delete selected application button.

Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.
Click the Show Tables button to see the details of your UPnP entries.

Chapter 6: Setting up and Configuring the Router
Setup Tab - UPnP

28

10/100 16-Port VPN Router

Setup Tab - One-to-One NAT

One-to-One NAT (Network Address Translation) creates a relationship that maps valid external addresses to
internal addresses hidden by NAT. Devices with internal addresses may be accessed at the corresponding
external IP addresses, as long as they are valid.

To create this relationship between internal and external addresses, define internal a nd external address ranges
of equal length. (The Router’s WAN IP address may not be included in the range of external addresses.) Once that
relationship is defined, the device with the first internal address is accessible at the first IP address in the
external address range, the second device at the second external IP address, and so forth.

For example, consider a LAN to which the ISP has assigned external IP addresses ranging from 209.19.28.16 to

209.19.28.31, with 209.19.28.16 used as the Router’s WAN IP (NAT public) address.The internal address range of

192.168.168.1 to 192.168.168.255 is used for the devices on the LAN. Typically, only devices that have been

designated as public LAN servers will be accessible from the Internet. However, with One-to-One NAT, the
machines with the internal IP addresses of 192.168.168.2 to 192.168.168.15 may be accessed at the
corresponding external IP addresses.

One-to-One NAT does not change how the firewall functions work. Access to LAN devices from the Internet will
not be allowed unless the appropriate network access rules are established, the appropriate forwarding entries
are enabled, or the appropriate authenticated user sessions are established.

Before configuring the One-to-One NAT settings, set up the appropriate Access Rules on the Firewall - Access
Rules screen, or set up the appropriate forwarding entries on the Setup - Forwarding screen.

Figure 6-20: One-to-One NAT

To use the One-to-One NAT feature, click the Enable box. To set up a One-to-One NAT entry, follow these
instructions:

1. In the Private Range Begin field, enter the beginning IP address of the private address range being mapped.
This will be the IP address of the first machine that will be accessible from the Internet.

2. In the Public Range Begin field, enter the beginning IP address of the public address range being mapped.
(This will be assigned by the ISP.) The Router’s WAN IP (NAT public) address cannot be included in this range.

3. Enter the number of IP addresses in the Range Length field. This number may not exceed the number of valid
external IP addresses. To map a single address, use a Range Length of 1.

4. Click the Add to list button, and configure as many ranges as you would like, up to a maximum of 64. To
delete an entry, select it and click the Delete selected range button.

Click the Save Settings button to save your settings, or click the Cancel Changes button to undo your changes.

Chapter 6: Setting up and Configuring the Router
Setup Tab - One-to-One NAT

29

10/100 16-Port VPN Router

Setup Tab - MAC Clone

Some ISPs require that you register a MAC address, which is a 12-digit code assigned to a unique piece of
hardware for identification. The MAC Clone feature “clones” your network adapter's MAC address onto the
Router, so you don’t have to call your ISP to change the registered MAC address to the Router's MAC address.

The MAC Clone table displays the number of WAN ports you have configured on the Network or Port Management
screen. Their MAC addresses are shown in the MAC Address column. Click the Edit in the Config. column to edit
the MAC Clone setting of the selected WAN port. A new screen will appear.

In the Interface field, the WAN port number is displayed. To manually clone a MAC address, select User Defined
WAN MAC Address, and then enter the 12 digits of your adapter’s MAC address. If you want to clone the MAC
address of the PC you are currently using to configure the Router, then select MAC Address from this PC.

Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.
Click the Back button to return to the previous page if you want to configure the other WAN ports.

Figure 6-21: MAC Clone

Chapter 6: Setting up and Configuring the Router
Setup Tab - MAC Clone

Figure 6-22: Edit MAC Clone

30

10/100 16-Port VPN Router

Setup Tab - DDNS

DDNS (Dynamic Domain Name System) service allows you to assign a fixed domain name to a dynamic WAN IP
address, so you can host your own web, FTP or other type of TCP/IP server in your LAN. The DDNS feature is
disabled by default.

Before configuring DDNS, you need to visit www.dyndns.org and register a domain name. (The DDNS service is
provided by DynDNS.org).

The DDNS table displays the number of WAN ports you have configured on the Network or Port Management
screen. The status of each port’s DDNS setting is shown in the DDNS Service column. Click the Edit in the Config.
column to edit the DDNS setting of the selected WAN port. A new screen will appear.

In the Interface field, the WAN port number is displayed. Select DynDNS.org from the DDNS Service drop-down
menu. Enter your DynDNS.org account information in the User name and Password fields. Enter your host name
in the three Host Name fields. For example, if your host name were myhouse.dyndns.org, then myhouse would go
into the first field, dyndns would go into the second field, and org would go into the last field.

Then click the Save Settings button, and the status of the DDNS function will be updated.
In the Internet IP Address section, the Router’s current Internet IP address is displayed. Because it is dynamic,

this will change.

Figure 6-23: DDNS

In the Status section, the status of the DDNS function is displayed. If the status information indicates an error,
make sure you have correctly entered the information for your account with DynDNS.org.

Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.
Click the Back button to return to the DDNS screen.

Chapter 6: Setting up and Configuring the Router
Setup Tab - DDNS

Figure 6-24: Edit DDNS

31

10/100 16-Port VPN Router

Setup Tab - Advanced Routing

Dynamic Routing

The Router's dynamic routing feature can be used, so the Router will automatically adjust to physical changes in
the network's layout. Using the dynamic RIP protocol, the Router calculates the most efficient route for the
network’s data packets to travel between the source and the destination, based upon the shortest paths. The RIP
protocol regularly broadcasts routing information to other routers on the network. It determines the route that the
network packets take based on the fewest number of hops between the source and the destination.

Working Mode. Select Gateway mode if the Router is hosting your network’s connection to the Internet. Select
Router mode if the Router exists on a network with other routers, including a separate network gateway that
handles the Internet connection. In Router Mode, any computer connected to the Router will not be able to
connect to the Internet unless you have another router function as the gateway.

RIP (Routing Information Protocol). To use dynamic routing for communication of network data, click the Enabled
radio button. Otherwise, keep the default, Disabled.

Receive RIP versions. To use dynamic routing for reception of network data, select the protocol you want: None,
RIPv1, RIPv2, or Both RIP v1 and v2.

Transmit RIP versions. To use dynamic routing for transmission of network data, select the protocol you want:

None, RIPv1, RIPv2 - Br oadcast, or RIPv2 - Multicast.

Figure 6-25: Advanced Routing

Static Routing

If the Router is connected to more than one network or there are multiple routers installed on your network, it
may be necessary to set up static routes. The static routing function determine s the path that data follows over
your network before and after it passes through the Router . You can use static routing to allow different IP domain
users to access the Internet through the Router.

Static routing is a powerful feature that should be used by advanced users only. In many cases, it is better to use
dynamic routing because it enables the Router to automatically adjust to physical changes in the network's
layout.

If you want to use static routing, the Router's DHCP settings must be disabled. Then add routing entries to the
Static Routing table. These entries tell the Router where to send all incoming packets. All of your network routers
should direct the default route entry to the 10/100 16-Port VPN Router.

Chapter 6: Setting up and Configuring the Router
Setup Tab - Advanced Routing

32

10/100 16-Port VPN Router

To create a static route entry, enter the following information:

1. In the Destination IP field, enter the network address of the remote LAN segment. For a standard Class C IP
domain, the network address is the first three fields of the Destination LAN IP, while the last field should be
zero.

2. In the Subnet Mask field, enter the Subnet Mask used on the destination LAN IP domain. For Class C IP
domains, the Subnet Mask is 255.255.255.0.

3. In the Default Gateway field, enter the IP address of your network’s gateway. If this Router is used to connect
your network to the Internet, then the gateway IP is the Router's Internet IP address. If you have another
router handling your network's Internet connection, enter the IP address of that router instead.

4. In the Hop Count field, enter the appropriate value (maximum is 15). This indicates the number of nodes that
a data packet passes through before reaching its destination. A node is any device on the network, such as a
switch, PC, or router.

5. From the Interface drop-down menu, select the appropriate interface. The Interface tells you whether your
network is on the LAN or the WAN (the Internet). If you’re connecting to a sub-network, select LAN. If you’re
connecting to another network through the Internet, select the appropriate WAN port option.

6. Click the Add to list button, and configure as many static routing entries as you would like, up to a maximum
of 30. To delete an entry, select it and click the Delete selected IP button.

Click the Save Settings button to save your changes or click the Cancel Changes button to undo your changes.
Click the Show Routing Table button to view the current routes and their settings.

Chapter 6: Setting up and Configuring the Router
Setup Tab - Advanced Routing

33

10/100 16-Port VPN Router

DHCP Tab - Setup

Setup

The Router can be used as a DHCP (Dynamic Host Configuration Protocol) server on your network. A DHCP server
automatically assigns available IP addresses to computers on your network. If you choose to enable the DHCP
server option, all of the PCs on your LAN must be set to obtain an IP address automatically from a DHCP server.
(By default, Windows computers are set to obtain an IP automatically.)

If the Router's DHCP server function is disabled, you have to carefully configure the IP address, subnet mask, and
DNS settings of every computer on your network. Be careful not to assign the same IP address to different
computers.

You can also set up to 30 static IP entries on this screen.
Enable DHCP Server. Check the box to enable the DHCP Server. If you already have a DHCP server on your

network, leave the box unchecked.

Dynamic IP

Client Lease Time. The Client Lease Time is the amount of time a network user will be allowed connection to the
Router with their current dynamic IP address. Enter the amount of time, in minutes, that the user will be “leased”
this dynamic IP address. The range is 5-43,200 minutes.

Range Start/End. Enter a starting IP address and ending IP address to create a range of available IP addresses.
The default range is 100~149. Enter a value for the DHCP server to start with when issuing IP addresses. This
value must be 192.168.1. 2 or greater, because the default IP address for the Router is 192.168.1.1.

Static IP

Static IP Address. If necessary, you can assign a static IP address to a specific computer based on its MAC
address. Complete the Static IP Address field.

MAC Address. Enter the MAC address of the specific computer to which you will assign a static IP address.
T o add a static IP entry, click the Add to list button. To delete a static IP entry, select the listed entry , and click the

Delete selected Entry button.

Chapter 6: Setting up and Configuring the Router
DHCP Tab - Setup

Figure 6-26: DHCP Setup

34

10/100 16-Port VPN Router

DNS

You can assign DNS server(s) to the DHCP clients so the Router will use the DNS server(s) for faster access to
functioning DNS server(s). You do not need to complete either of these DNS Server fields; it is an optional feature.

WINS

Windows Internet Naming Service (WINS) is a service that resolves NetBIOS names to IP addresses. WINS is
assigned if the computer (DHCP client) requests one. If you do not know the IP address of the WINS server, keep
the default, 0.0.0.0.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

Chapter 6: Setting up and Configuring the Router
DHCP Tab - Setup

35

10/100 16-Port VPN Router

DHCP Tab - Status

A Status page is available so you can view the status information for the DHCP server and its clients.

Status

For the DHCP server, the following information is shown:

• DHCP Server. This is the IP address of the DHCP server.

• Dynamic IP Used. It shows the number of dynamic IP addresses used.

• Static IP Used. It shows the number of static IP addresses used.

• DHCP Available. This indicates the number of dynamic IP addresses available.

• Total. It shows the total number of dynamic IP addresses that can be assigned by the DHCP server.

Client Table

For all network clients using the DHCP server, the Client Table shows the current DHCP Client information:

• Client Host Name. This is the name assigned to a client host.

Figure 6-27: DHCP Status

• IP Address. It is the dynamic IP address assigned to a client.

• MAC Address. This indicates the MAC address of a client.

• Leased Time. It displays the amount of time a network user will be allowed connection to the Router with their
current dynamic IP address.

Click the Trash Can icon to delete a DHCP client, and the client host’s IP address will be released. Click the
Refresh button to refresh the on-screen information.

Chapter 6: Setting up and Configuring the Router
DHCP Tab - Status

36

10/100 16-Port VPN Router

System Management Tab - Multi-WAN

Load Balance

For the Load Balance feature, you have a choice of Intelligent Balancer (Auto Mode) and IP Group (By Users),
except for WAN1. The Router reserves at least one WAN port for non-IP Group users, so WAN1 will always be set
to Intelligent Balancer (Auto Mode).

If you change the Router’s Load Balance Mode, a confirmation message will appear. Y ou have to save this change
before you can change the settings of any WAN ports.

Intelligent Balancer (Auto Mode)

Select the Intelligent Balancer (Au t o Mode) setting if you want all WAN ports to be in Auto Mode. The Router
will automatically compute the maximum bandwidth of all WAN ports by using Weighted Round Robin to balance
the loading.

In the Interface Setting table, the number of each WAN port is shown in the Interface column. Its Load Balance
Mode is displayed in the Mode column. Click the Edit in the Config. column to edit the Load Balance setting of the
selected WAN port. The Edit Load Balance screen will appear.

In the Interface field, the WAN port number is displayed. For the Max. Bandwidth provided by ISP setting, select
64K, 128K, 256K, 384K, 512K, 1024K, 1.5M, 2M, or 2.5M or above from the Upstream drop-down menu. From
the Downstream drop-down menu, select 512K, 1024K, 1.5M, 2M, or 2.5M or above.

Figure 6-28: Multi-WAN Load Balance

Figure 6-29: Save New Mode

You can enable the Router to check the network service layer using DNS lookup. This tool can detect the network
connection status of the ISP if you have set up the DNS server in the Network section of the Setup page. If you did
not set up the DNS server, the checkbox will be grayed out, and then you cannot use the DNS lookup tool. The
default is unchecked. To use this tool, enter the host name and select the appropriate option from the When Fail
drop-down menu. Using DNS lookup, the Router will check the network service layer every 15 minutes to see if
the network connection to your ISP is active.

The When Fail drop-down menu offers two options. If the connection is not active, the Router will generate a
system log or suspend this WAN interface. For the Generate System Log setting, the Router will generate a
system log when DNS lookup fails to inform you that the ISP connection may be disconnected. For the Suspend
this WAN Interface setting, the Router will suspend this WAN interface when the network connection to your ISP
is not active. The traffic on this WAN will be dispatched to the other WAN ports in Auto Mode. When the ISP
connection is re-established, traffic will return to this WAN interface.

Chapter 6: Setting up and Configuring the Router
System Management Tab - Multi-WAN

Figure 6-30: Intelligent Balancer - Edit Load Balance

37

10/100 16-Port VPN Router

Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.
To return to the Load Balance screen, click the Back button.

IP Group (By Users)

IP Group (By Users) mode enables you to group traffic by different priority levels or classes of service (CoS). It can
ensure bandwidth and higher priority for the specific IP addresses of important users, and the IP Group users
don’t need to share bandwidth with lower classification users who use Intelligent Balancer mode.

In the Interface Setting table, the number of each WAN port is shown in the Interface column. If you have set the
IP Group for a selected WAN port, it will show the message, “Dispatched by user” in the Mode column. If you did
not set the IP Group for a selected WAN port, it will show the message, “Dispatched by system” in the Mode
column.

After you have selected IP Group (By Users), then click the Edit in the Config. column to edit the Mode setting of
the selected WAN port. The Edit Load Balance screen will appear.

In the Interface field, the WAN port number is displayed. For the Max. Bandwidth provided by ISP setting, select
64K, 128K, 256K, 384K, 512K, 1024K, 1.5M, 2M, or 2.5M or above from the Upstream drop-down menu. From
the Downstream drop-down menu, select 512K, 1024K, 1.5M, 2M, or 2.5M or above.

You can enable the Router to check the network service layer using DNS lookup. This tool can detect the network
connection status of the ISP if you have set up the DNS server in the Network section of the Setup page. If you did
not set up the DNS server, the checkbox will be grayed out, and then you cannot use the DNS lookup tool. The
default is unchecked. To use this tool, enter the host name and select the appropriate option from the When Fail
drop-down menu. Using DNS lookup, the Router will check the network service layer every 15 minutes to see if
the network connection to your ISP is active.

Figure 6-31: IP Group (By Users)

The When Fail drop-down menu offers two options. If the connection is not active, the Router will generate a
system log or suspend this WAN interface. For the Generate System Log setting, the Router will generate a
system log when DNS lookup fails to inform you that the ISP connection may be disconnected. For the Suspend
this WAN Interface setting, the Router will suspend this WAN interface when the network connection to your ISP
is not active. The traffic on this WAN will be dispatched to the other WAN ports in Auto Mode. When the ISP
connection is re-established, traffic will return to this WAN interface.

To add an IP range, follow these instructions:

1. Enter the beginning IP address of the range in the Address field.

2. Enter the number of users in the Range field.

Chapter 6: Setting up and Configuring the Router
System Management Tab - Multi-WAN

Figure 6-32: IP Group (By U sers) - Edit Load Balance

38

10/100 16-Port VPN Router

3. Check the IP user will be redirected when link fail box. When checked, the IP users’ traffic will be
redirected to the backup link when the initial link fails. When unchecked, the IP users’ traffic will not be
redirected. The default is a checkmark.

4. Click the Add to list button, and configure as many IP range entries as you would like, up to a maximum of

30. To delete an entry, select it and click the Delete selected range button.

Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.
To return to the Load Balance screen, click the Back button.

Chapter 6: Setting up and Configuring the Router
System Management Tab - Multi-WAN

39

10/100 16-Port VPN Router

System Management Tab - SNMP

SNMP, Simple Network Management Protocol, is a network protocol that provides network administrators with
the ability to monitor the status of the Router and receive notification of any critical events as they occur on the
network. The Router supports SNMP v1/v2c and all relevant Management Information Base II (MIBII) groups. The
Router replies to SNMP Get commands for MIBII via any LAN (local) interface and supports a custom MIB for
generating trap messages.

To enable SNMP, keep the Enable box checked. To disable the SNMP agent, remove the checkmark.
To configure SNMP, complete all fields on this screen.
System Name. Enter the hostname of the Router.
System Contact. Enter the name of the network administrator for the Router, as well as a contact number or

e-mail address.
System Location. Enter the location of the Router. For example, you could include the name of the building, floor

number, and room location, such as Head Office - Floor 5 - Networking 3.
Get Community Name. Create a name for the group or community of administrators who can view the Router’s

SNMP data. The default name is public.
Set Community Name. Create a name for the group or community of administrators who can receive the Router’s

SNMP traps. The default name is private. A name must be entered in this field.

Figure 6-33: SNMP

T rap Community Name . Enter the passwor d required by the remote host computer that will receive trap messages
or notices sent by the Router.

Send SNMP Trap to. Enter the IP address of the remote host computer that will receive the trap messages.
Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.

Chapter 6: Setting up and Configuring the Router
System Management Tab - SNMP

40

10/100 16-Port VPN Router

System Management Tab - Diagnostic

The Router has two built-in tools, DNS Name Lookup and Ping, which are used for troubleshooting network
problems.

The Internet has a service called the Domain Name Service (DNS), which allows users to enter an easily
remembered host name, such as www.linksys.com, instead of numerical TCP/IP addresses to access Internet
resources. The Router’s DNS Name Lookup tool will return the numerical TCP/IP address of a host name.

The ping test bounces a packet off a machine on the Internet back to the sender. This test shows if the Router is
able to contact the remote host. If users on the LAN are having problems accessing services on the Internet, try
pinging the DNS server or other machine at the ISP’s location. If this test is successful, try pinging devices
outside the ISP. This will show if the problem lies with the ISP’s connection.

Select which tool you want to use, DNS Name Lookup or Ping.

DNS Name Lookup

Before using this tool, make sure the IP address of the DNS server is entered on the Network page of the Setup
tab; otherwise, this tool will not work.

Enter the host name in the Look up the name field, and click the Go button. (Do not add the prefix http:// or else
you will get an error message.) The Router will then query the DNS server and display the result at the bottom of
the screen.

Figure 6-34: DNS Name Lookup

Ping

Before using this tool make sure you know the device or host’s IP address. If you do not know it, use the Router’ s
DNS Name Lookup tool to find the IP address.

In the Ping host or IP address field, enter the IP address of the device being pinged, and click the Go button. The
test will take a few seconds to complete. When completed, the Router will display the results at the bottom of the
screen. The results include this information: number of packets transmitted, received, or lost, as well as round
trip time (minimum, maximum, and average).

Chapter 6: Setting up and Configuring the Router
System Management Tab - Diagnostic

Figure 6-35: Ping

41

10/100 16-Port VPN Router

System Management Tab - Factory Default

Use this screen to clear all of your configuration information and restore the Router to its factory default settings.
Only use this feature if you wish to discard all the settings and preferences that you have configured.

Click the Return to Factory Default Setting button if you want to restore the Router to the factory default
settings. After clicking the button, a confirmation screen will appear. Click the OK button to continue.

System Management Tab - Firmware Upgrade

Firmware Upgrade

You can use this feature to upgrade the Router’s firmware to the latest version. To download the firmware, refer
to the Firmware Download section. If you have already downloaded the firmware onto your computer, then click
the Browse button to look for the file. Then click the Firmware Upgrade Right Now button.

Firmware Download

If you need to download the latest version of the Router’s firmware , clic k the Firmware Download from Linksys
Web Site button. You will see the Support page of the Linksys website. Select the 10/100 16-Port VPN Router
from the pull-down menu, and choose the firmware from the available options. After downloading the firmware,
follow the Firmware Upgrade instructions.

Figure 6-36: Factory Default

Figure 6-37: Confirm Return to Factory Default Settings

Figure 6-38: Firmware Upgrade

Chapter 6: Setting up and Configuring the Router
System Management Tab - Factory Default

42

10/100 16-Port VPN Router

System Management Tab - Restart

If you need to restart the Router, it is highly recommended that you use the Restart tool on this screen. When you
restart from the Restart screen, then the Router will send out your log file before it is reset.

Before restarting the Router, decide which firmware version you want the Router to use. The Active Firmware
Version is the one currently used by the Router . The Backup Firmware Version may be the same as the active one,
or it may be an older version if you have upgraded the Router’s firmware . Select which firmw are version you want
the Router to use, the Active Firmware Version or Backup Firmware Version. Then click the Restart Router
button to restart the Router.

System Management Tab - Setting Backup

This screen allows you to make a backup file of your preferences file for the Router. To save the backup file, you
need to export the configuration file. To use the preferences file, you need to import the configuration file.

Import Configuration File

To import a configuration file, first specify where your preferences file is located. Click the Browse button, and a
dialog box will appear and ask you to select the appropriate configuration file. After you select the file, click the
Import button. This process may take up to a minute. Then you will need to restart the Router so the changes will
take effect.

Export Configuration File

T o export the Router’ s curr ent configuration file, click the Export button, and a dialog box will appear and ask you
to select a location where you would like to store your preferences file. This file will be called RV016.exp by
default, but you may rename it if you wish. This process may take up to a minute.

Figure 6-39: Restart

Figure 6-40: Setting Backup

Chapter 6: Setting up and Configuring the Router
System Management Tab - Restart

43

10/100 16-Port VPN Router

Port Management Tab - Port Setup

On this screen you can choose the number of WAN ports the Router will provide and configure the connection
settings for each port, such as priority, speed, and duplex. You can also enable or disable the auto-negotiation
feature for all ports.

From the drop-down menu, select how many WAN ports you prefer to use . The default is 2, while the maximum is

7. You can also change the number of WAN ports using the Network page of the Setup tab. If you change the

number on this screen, then the number on the Network screen will change accordingly. Make sure the network
configuration matches the number of WAN port settings on this screen.

If you change the number of WAN ports, a confirmation message will appear. Make sure your network
configuration matches the new WAN settings. Then click the OK button to save the new setting.

The Basic Per Port Config. table will display the WAN port numbers in the Port ID column and their respective
settings in the Interface, Disable, Priority, Speed, and Duplex columns. Click Enable in the Auto Negotiation
column if you want the Router’s ports to auto-negotiate connection speeds and duplex mode; then you will not
need to set up speed and duplex settings separately.

Basic Per Port Config. Table

Port ID. The port number or name is displayed.

Figure 6-41: Port Setup

Interface. The port’s interface type is shown here.
Disable. You can select specific ports to disable. Click the checkbox to disable a specific port.
Priority . From the drop-down menu, select High or Normal for port-based QoS (Quality of Service). QoS is used to

maximize network performance, and this setting allows you to prioritize performance on all ports.
Speed. You can manually configure each port’s speed as 10Mbps or 100Mbps.
Duplex. You can manually configure each port’s duplex mode as half-duplex or full-duplex.
Auto Negotiation. You can set each port to auto-negotiation mode, so you will not need to set up speed and duplex

settings separately.
Click the Save Settings button to save your changes, or click the Cancel Changes button to undo your changes.

Chapter 6: Setting up and Configuring the Router
Port Management Tab - Port Setup

44

10/100 16-Port VPN Router

Port Management Tab - Port Status

To see the status information and settings for a specific port, select its ID number or name from the Port ID
drop-down menu.

For the selected port, the Summary table will show these settings: Type, Interface, Link Status, Port Activity,
Priority, Speed Status, Duplex Status, and Auto negotiation.

For the selected port, the Statistics table will show these statistics: number of packets received, number of
packet bytes received, number of packets transmitted, number of packet bytes transmitted, and number of
packet errors.

Click the Refresh button to retrieve the most recent settings and statistics.

Figure 6-42: Port Status

Chapter 6: Setting up and Configuring the Router
Port Management Tab - Port Status

45

10/100 16-Port VPN Router

Firewall Tab - General

Using the screens of the Firewall tab, you can configure the Router to block or allow Internet access for specific
internal users. You can also configure the Router to block or allow access to internal servers for specific Internet
users. On the Access Rules screen, you can set up different packet filters for various users located on the internal
network (LAN) or external network (WAN or Internet) based on their IP addresses or their network port numbers.

Firewall. The firewall is enabled by default. If you disable the firewall, then the SPI, DoS, and Block WAN Request
features as well as the Access Rules and Content Filters will also be disabled, and the Remote Management
feature will be enabled.

SPI (Stateful Packet Inspection). The SPI feature is enabled by default. The Router's firewall uses Stateful Packet
Inspection to review the information that passes through the firewall. It will inspect all packets based on the
established connection, prior to passing the packets for processing through a higher protocol layer.

DoS (Denial of Service). The DoS feature is enabled by default. It protects internal networks from Internet attacks,
such as SYN Flooding, Smurf, LAND, Ping of Death, IP Spoofing, and reassembly attacks.

Block WAN Request. This feature is enabled by default and is designed to prevent attacks through the Internet.
When it is enabled, the Router will drop both unaccepted TCP request and ICMP packets from the WAN side.
Hackers will not find the Router by pinging the WAN IP address. If the Router’s DMZ feature is enabled, then the
Block WAN Request feature will be disabled.

Remote Management. The Router supports remote management. This feature is disabled by default. If you want
to manage this Router through a WAN connection, click Enable. Then select the port number you want to use
(port 80 or port 8080 is usually used for remote management).

Multicast Pass Through. IP Multicasting occurs when a single data transmission is sent to multiple recipients at
the same time. This feature is disabled by default. If it is enabled, then the Router allows IP multicast packets to
be forwarded to the appropriate computers.

MTU (Maximum Transmission Unit). This feature specifies the largest packet size permitted for network
transmission. It is recommended that you use the Auto option; however , you may manually set the MTU value . The
default MTU size is 1500 bytes.

Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.

Figure 6-43: General Firewall

Chapter 6: Setting up and Configuring the Router
Firewall Tab - General

46

10/100 16-Port VPN Router

Firewall Tab - Access Rules

Access Rules evaluate network traffic to decide whether or not it is allowed to pass through the Router’s firewall.
Access Rules look specifically at a data transmission’s source IP address, destination IP address, and IP protocol
type, and you can apply each Access Rule according to a different schedule.

With the use of custom rules, it is possible to disable all firewall protection or block all access to the Internet, so
use extreme caution when creating or deleting Access Rules.

The Router has the following Default Rules:

• All traffic from the LAN to the WAN is allowed.

• All traffic from the WAN to the LAN is denied.

• All traffic from the LAN to the DMZ is allowed.

• All traffic from the DMZ to the LAN is denied.

• All traffic from the WAN to the DMZ is allowed.

• All traffic from the DMZ to the WAN is allowed.
Custom rules can be created to override the above Default Rules, but there are four additional default rules that

will be always active and cannot be overridden by any custom rules.

• HTTP service from the LAN to the Router is always allowed.

• DHCP service from the LAN is always allowed.

• DNS service from the LAN is always allowed.

• Ping service from the LAN to the Router is always allowed.

Figure 6-44: Access Rules

Except for the Default Rules, all configured Access Rules are listed in the Access Rules table, and you can set the
priority for each custom rule. The Access Rules table lists the following information for each Access Rule: Priority ,
Enable status, Action, Service, Source Interface, Source, Destination, Time, and Day. Click the Edit button to edit
an Access Rule, and click the Trash Can icon to delete an Access Rule. If the Access Rules table has multiple
pages, select a different page to view from the Jump to drop-down menu. If you want more or fewer entries listed
per page, select a different number from the entries per page drop-down menu.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo your changes.
Click Add New Rule button to add new Access Rules, and the Add a New Access Rule screen will appear. Click

the Restore to Default Rules button to restore the Default Rules and delete the custom Access Rules.

Chapter 6: Setting up and Configuring the Router
Firewall Tab - Access Rules

47

10/100 16-Port VPN Router

Add a New Rule

Services. If you need help to set up the Access Rules, click the Wizard button. For more details, see the Wizard
Tab section. Otherwise, follow these instructions:

1. For the Action setting, select Allow or Deny from the pull-down menu, depending on the purpose of the
Access Rule.

2. Select the service you want from the Service pull-down menu. If the Service you need is not listed in the
menu, click the Service Management button to add the new service. A new screen will appear . Enter a name
in the Service Name field. From the Protocol drop-down menu, select the protocol it uses. Enter its range in
the Port Range fields. Click the Add to List button. Then, click the Save Setting button to save your changes.
Click the Cancel Changes button to cancel your changes. Click the Exit button to return to the Add a New
Access Rule screen.

If you want to modify a service you have created, select it and click the Update this service button. Then,
click the Save Setting button to save your changes. Click the Exit button to return to the Add a New Access
Rule screen.

If you want to delete a service you have created, select it and click the Delete selected service button. Then,
click the Save Setting button to save your changes. Click the Exit button to return to the Add a New Access
Rule screen.

Figure 6-45: Add a New Access Rule

If you want to add another service, click the Add New button. Enter a name in the Service Name field. From
the Protocol drop-down menu, select the protocol it uses. Enter its range in the Port Range fields. Click the
Add to List button. Then, click the Save Setting button to save your changes. Click the Cancel Changes
button to cancel your changes. Click the Exit button to return to the Add a New Access Rule screen.

3. For this service, you can decide whether or not you want the Router to keep a log tracking this type of activity.
To keep a log, select Log packets matching this access rule. If you don’t want a log, select Do not log
packets matching this access rule.

4. Select the appropriate Source Interface (LAN, DMZ, Any , WAN1, WAN2...) from the pull-down menu. (The WAN
ports available depend on the number of WAN ports set on the Network or Port Management screen.)

5. Select the Source IP address(es) for this Access Rule. If it can be any IP address, select Any. If it is one IP
address, select Single and enter the IP address in the Source IP fields. If it is a range of IP addresses, select
Range, and enter the IP addresses in the Source IP fields.

Chapter 6: Setting up and Configuring the Router
Firewall Tab - Access Rules

48

10/100 16-Port VPN Router

6. Select the Destination IP address(es) for this Access Rule. If it can be any IP address, select Any. If it is one IP
address, select Single and enter the IP address in the Destination IP fields. If it is a range of IP addresses,
select Range, and enter the IP addresses in the Destination IP fields.

7. Decide when you want this Access Rule to be enforced, and enter the hours and minutes in 24-hour format.
The default condition for any new rule is to always enforce it.

Decide which days of the week you want the Access Rule to be enforced, and select the appropriate days.

Click the Save Settings button to save your c hanges, or click the Cancel Changes button to undo your changes.
Click the Back button to return to the Access Rules screen.

Firewall Tab - Content Filter

Use this screen to block specific domains during the designated days and times.
When the Block Forbidden Domains checkbox is selected, the Router will forbid access to websites on the

Forbidden Domains list. To add a domain to the list, enter the address of the domain in the Add field, and then
click the Add to list button. To remove a domain from the list, select the domain, and click the Delete selected
domain button.

When will this content filter be in effect? If you want the content filter enforced 24 hours a day, keep the default,
always, or enter a range of hours and minutes to designate the enforcement period. Then select the day(s) of the
week you want the content filter enforced. If you want the content filter enforced daily, then keep the default,
Everyday. For example, you could configure the Router to filter employee Internet access during normal business
hours, but allow unrestricted access at night and on weekends. The default condition is to always enforce it.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo your changes.

Figure 6-46: Content Filter

Chapter 6: Setting up and Configuring the Router
Firewall Tab - Content Filter

49

10/100 16-Port VPN Router

VPN Tab - Summary

This screen displays general information about the VPN tunnels and GroupVPNs.
Summary. This shows the number of VPN Tunnel(s) Used and Tunnel(s) Available. The Router supports up to 50

tunnels.
Detail. Click the Detail button to see additional information about the VPN tunnels. For each tunnel, you can view

its Name, Status, Phase 2 Encryption/Authentication/Group, Local Group, Remote Group, and Remote Gateway.
You can save or print this screen. Click the Close button to exit this screen.

Tunnel Status

Add New Tunnel. Click the Add New Tunnel button to add a Gateway-to-Gateway tunnel or a Client-to-Gateway
tunnel. A new screen will appear and show the two types of VPN tunnels you can create.

Select the kind of tunnel you want to add.
Gateway to Gateway. The Gateway-to-Gateway tunnel is a tunnel created between two VPN Routers or other VPN

devices. Click the Add Now button to see the Gateway to Gateway screen. Proceed to the Gateway to Gateway
section for further instructions.

Client to Gateway. The Client to Gateway tunnel is a tunnel created between the VPN Router and the client host
who is using VPN client software that supports IPSec. Click the Add Now button to see the Client to Gateway
screen. Proceed to the Client to Gateway section for further instructions.

After you have added the VPN tunnels, you will see them listed in the Tunnel table, which describes all VPN
tunnels, including the tunnels defined under GroupVPN. If the Tunnel table has multiple pages, you can click
Previous page or Next page to jump to the page that you want to see . You can also select a different page to view
from the Jump to drop-down menu. If you want more or fewer entries listed per page, select a different number
from the entries per page drop-down menu.

Tunnel No. It shows the number of the VPN tunnel.
Tunnel Name. It shows the Tunnel Name that you gave the VPN tunnel or group VPN.
Status. This indicates the status of the VPN tunnel.
If you selected Manual Keying Mode in the IPSec Setup section, then the status will display the message,

“Manual,” and there will be no Tunnel Test function available.

Figure 6-47: VPN Summary

Figure 6-48: VPN Tunnel Details

Chapter 6: Setting up and Configuring the Router
VPN Tab - Summary

Figure 6-49: Types of VPN Tunnels

50

10/100 16-Port VPN Router

Phase2 Enc/Auth/Grp. This shows the Phase 2 Encryption type (DES/3DES), Authentication method (MD5/SHA1),
and DH Group number (1/2/5) that you chose in the IPSec Setup section.

If you selected Manual Keying Mode in the IPSec Setup section, then there is no Phase 2 DH Group, so only the
Encryption type and Authentication method will be displayed.

Local Group. This shows the IP address and subnet mask of the Local Group.
Remote Group. The IP address and subnet mask of the Remote Group are displayed here.
Remote Gateway. It shows the IP address of the Remote Gateway.
Tunnel Test. Click the Connect button to verify the status of the VPN tunnel. The test result will be updated in the

Status column. If the tunnel is connected, a Disconnect button will be available so you can terminate the VPN
connection. (If you selected Manual Keying Mode in the IPSec Setup section, the Tunnel T est will not be available .)

Config. Click the Edit button to open a new screen where you can change the tunnel’s settings. Refer to the
Gateway to Gateway or Gateway to Client section for more information. Click the Trash Can icon to delete all of
your tunnel settings for each individual tunnel.

T unnel(s) Enabled and T unnel(s) Defined. These read-only fields show the number of VPN tunnels that are enabled
and number of VPN tunnels that are defined. The number of tunnels enabled may be fewer than the number of
tunnels defined because you can disable any of the tunnels that you have defined.

GroupVPN Status

If you did not enable any Group VPN connections, then none will be listed in the GroupVPN table.
Group Name. It shows the name you gave the Group VPN on the Client to Gateway screen.
Connected Tunnels. This shows the number of connected tunnels.
Phase2 Enc/Auth/Grp. This shows the Phase 2 Encryption type (DES/3DES), Authentication method (MD5/SHA1),

and DH Group number (1/2/5) that you chose in the IPSec Setup section.
Local Group. This shows the IP address and subnet mask of the Local Group.
Remote Client. The remote client setup that you’ve chosen will be displayed here.
Remote Client Status. If you click the Detail List button, you will see information about this Group VPN. You can

view its Group Name, IP address, and Connection Time. Click the Refresh button to update the status information.
Click the Close button to exit this screen.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Summary

Figure 6-50: GroupVPN List

51

10/100 16-Port VPN Router

Tunnel Test. Click the Connect button to verify the status of a VPN tunnel. The test result will be updated in the
Status column. If the tunnel is connected, a Disconnect button will be available so you can terminate the VPN
connection.

Config. Click the Edit button to open a new screen where you can change the tunnel’s settings. Click the Trash

Can icon to delete all of your tunnel settings.

VPN Tab - Gateway to Gateway

Use this screen to create a new tunnel between two VPN devices.

Add a New Tunnel

Tunnel No. A tunnel number between 1-50 will be automatically generated.
Tunnel Name. Enter a name for this VPN tunnel, such as Los Angeles Office, Chicago Branch, or New York

Division. This allows you to identify multiple tunnels and does not have to match the name used at the other end
of the tunnel.

Interface. Select the appropriate Interface (WAN1, WAN2...) from the pull-down menu. If you designate more than
two WAN ports on the Network or Port Management page, then additional WAN ports will be available.

Enable. Check this box to enable a VPN tunnel. (When creating a VPN tunnel, this checkbox will be disabled.)

Local Group Setup

Local Security Gateway Type

Select one of these five available types: IP Only, IP + Domain Name(FQDN) Authentication, IP + E-mail

Addr.(USER FQDN) Authentication, Dynamic IP + Domain Name(FQDN) Authentication, or Dynamic IP +
E-mail Addr.(USER FQDN) Authentication.

(If you want to use a Fully Qualified Domain Name (FQDN) for authentication but you do not have one, visit
www.dyndns.org to set up a Dynamic Domain Name System (DDNS) account. Then enable and configure the
10/100 16-Port VPN Router’s DDNS settings on the DDNS screen.)

The Local Security Gateway T ype you select should match the Remote Security Gateway T ype selected on the VPN
device at the other end of the tunnel.

After you have selected the Local Security Gateway Type, the settings available on this screen may change,
depending on which selection you have made.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Gateway to Gateway

Figure 6-51: Gateway to Gateway

52

10/100 16-Port VPN Router

IP Only. If you select IP Only, then only the computer with a specific IP address will be able to access the
tunnel. The WAN (or Internet) IP address of the Router will automatically appear in the IP address field.

IP + Domain Name(FQDN) Authentication. If you select this type, enter the FQDN (Fully Qualified Domain
Name) in the Domain Name field, and an IP address will automatically appear in the IP address field. The
FQDN is the host name and domain name for a specific computer on the Internet. An example of a FQDN is
vpn.myvpnserver.com. The FQDN and IP address must match the FQDN and IP address of the Remote Security
Gateway type selected on the remote VPN device at the other end of the tunnel. The FQDN and IP can be used
for only one tunnel connection.

IP + E-mail Addr.(USER FQDN) Authentication. If you select this type, enter the appropriate e-mail address in
the E-mail address fields, and an IP address will automatically appear in the IP address field.

Dynamic IP + Domain Name(FQDN) Authentication. If the Local Security Gateway has a dynamic IP and you
want to use the Domain Name for authentication, then select this type. When the Remote Security Gateway
asks to create a tunnel with the Router , the Router will w ork as a responder. For authentication, complete the
Domain Name field, and make sure it matches the Domain Name set on the Remote Security Gateway of the
remote VPN device. The Domain Name can be used for only one tunnel connection, so you can’t use the same
Domain Name to create another new tunnel connection.

Dynamic IP + E-mail Addr.(USER FQDN) Authentication. If the Local Security Gateway has a dynamic IP and
you want to use the e-mail address for authentication, then select this type. When the Remote Security
Gateway asks to create a tunnel with the Router, the Router will work as a responder. For authentication,
enter the appropriate e-mail address in the E-mail address fields.

Local Security Group Type

Select the local LAN user(s) behind the Router that can use this VPN tunnel. Select one of these three available
types: IP, Subnet, or IP Range. The Local Security Group Type you select should match the Remote Security
Group Type selected on the VPN device at the other end of the tunnel.

Figure 6-52: Local Security G ateway Type - IP Only

Figure 6-53: Local Security Gateway Type -

IP + Domain Name (FQDN) Authentication

Figure 6-54: Local Security Gateway Type -

IP + E-mail Addr. (USER FQDN) Authentication

Figure 6-55: Local Security Gateway Type -

Dynamic IP + Domain Name (FQDN) Authentication

Figure 6-56: Local Security Gateway Type -

Dynamic IP + E-mail Addr. (USER FQDN) Authentication

After you have selected the Local Security Group Type, the settings available on this screen may change,
depending on which selection you have made.

IP. If you select IP, then only the computer with a specific IP address will be able to access the tunnel. Enter
the appropriate IP address. The default IP is 192.168.1.0.

Subnet. If you select Subnet, which is the default, then all computers on the local subnet will be able to
access the tunnel. Complete the IP address and Subnet Mask fields. The default IP is 192.168.1.0, and the
default Subnet Mask is 255.255.255.0.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Gateway to Gateway

Figure 6-57: Local Security Group Type - IP

Figure 6-58: Local Security Group Type - Subnet

53

10/100 16-Port VPN Router

IP Range. If you select IP Range, then you can specify a range of IP addresses within the subnet that will be
able to access the tunnel. Complete the IP range fields. The default IP Range is 192.168.1.0~254.

Remote Group Setup

Before you configure the Remote Group Setup, make sure your VPN tunnel will have two different IP subnets. For
example, if the local 10/100 16-Port VPN Router has an IP scheme of 192.168.1.x (x being a number from 1 to

254), then the remote VPN router should have a different IP scheme, such as 192.168.2.y (y being a number from

1 to 254). Otherwise, the IP addresses will conflict, and the VPN tunnel cannot be created.

Remote Security Gateway Type

Select one of these five available types: IP Only, IP + Domain Name(FQDN) Authentication, IP + E-mail

Addr.(USER FQDN) Authentication, Dynamic IP + Domain Name(FQDN) Authentication, or Dynamic IP +
E-mail Addr.(USER FQDN) Authentication.

(If you want the remote VPN router to use a Fully Qualified Domain Name (FQDN) for authentication but it does not
have one, visit www.dyndns.org to set up a Dynamic Domain Name System (DDNS) account. Then enable and
configure the remote VPN router’s DDNS feature.)

The Remote Security Gateway T ype you select should match the Local Security Gateway T ype selected on the VPN
device at the other end of the tunnel.

After you have selected the Remote Security Gateway Type, the settings available on this screen may change,
depending on which selection you have made.

IP Only. If you select IP Only, then only the computer with a specific IP address will be able to access the
tunnel. In the IP address field, enter the IP address of the remote VPN device at the other end of the tunnel.
(This must be a static or fixed IP address only.)

Figure 6-59: Local Security Group Type - IP Range

Figure 6-60: Remote Security Gateway Type - IP Only

IP + Domain Name(FQDN) Authentication. If you select this type, enter the FQDN (Fully Qualified Domain
Name) and IP address of the remote VPN device at the other end of the tunnel. (Enter the FQDN in the Domain
Name field, and enter the IP address in the IP address field.) The FQDN is the host name and domain name for
a specific computer on the Internet. An example of a FQDN is vpn.remotevpnserver.com. The FQDN and IP
address must match the FQDN and IP address of the Local Security Gateway type selected on the remote VPN
device at the other end of the tunnel. The FQDN and IP can be used for only one tunnel connection.

IP + E-mail Addr.(USER FQDN) Authentication. If you select this type, enter the e-mail address and IP address
of the remote VPN device at the other end of the tunnel.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Gateway to Gateway

Figure 6-61: Remote Security Gateway Type -

IP + Domain Name (FQDN) Authentication

Figure 6-62: Remote Security Gateway Type ­IP + E-mail Addr. (USER FQDN) Authentication

54

10/100 16-Port VPN Router

Dynamic IP + Domain Name(FQDN) Authentication. If the Remote Security Gateway has a dynamic IP and you
want to use the Domain Name for authentication, then select this type. When the Remote Security Gateway
asks to create a tunnel with the Router , the Router will w ork as a responder. For authentication, complete the
Domain Name field, and make sure it matches the Domain Name set on the Local Gateway of the remote VPN
device. (The Remote Security Gateway has a dynamic IP, so you do not need to enter an IP address.) The
Domain Name can be used for only one tunnel connection, so you can’t use the same Domain Name to create
another new tunnel connection.

Dynamic IP + E-mail Addr .(USER FQDN) Authentication. If the Remote Security Gateway has a d ynamic IP and
you want to use the e-mail address for authentication, then select this type. When the Remote Security
Gateway asks to create a tunnel with the Router, the Router will work as a responder. For authentication,
enter the appropriate e-mail address in the E-mail address fields. (The Remote Security Gateway has a
dynamic IP, so you do not need to enter an IP address.)

Remote Security Group Type

Select the Remote Security Group behind the Remote Gateway that can use this VPN tunnel. Select one of these
three available types: IP, Subnet, or IP Range. The Remote Security Group Type you select should match the
Local Security Group Type selected on the VPN device at the other end of the tunnel.

After you have selected the Remote Security Group Type, the settings available on this screen may change,
depending on which selection you have made.

IP. If you select IP, then only the computer with a specific IP address will be able to access the tunnel. Enter
the appropriate IP address.

Figure 6-63: Remote Security Gateway Type -

Dynamic IP + Domain Name (FQDN) Authentication

Figure 6-64: Remote Security Gateway Type -

Dynamic IP + E-mail Addr. (USER FQDN) Authentication

Figure 6-65: Remote Security Group Type - IP

Subnet. If you select Subnet, which is the default, then all computers on the remote subnet will be able to
access the tunnel. Complete the IP address and Subnet Mask fields. The default Subnet Mask is

255.255.255.0.
IP Range. If you select IP Range, then you can specify a range of IP addresses within the subnet that will be

able to access the tunnel. Complete the IP range fields.

IPSec Setup

In order for any encryption to occur, the two ends of a VPN tunnel must agree on the methods of encryption,
decryption, and authentication. This is done by sharing a key to the encryption code. For key management, there
are two modes available; select IKE with Preshared Key or Manual. Both ends of a VPN tunnel must use the
same mode of key management.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Gateway to Gateway

Figure 6-66: Remote Security Group Type - Subnet

Figure 6-67: Remote Security Group Type - IP Range

55

10/100 16-Port VPN Router

After you have selected the Keying Mode, the settings available on this screen may change, depending on the
selection you have made.

IKE with Preshared Key

IKE is an Internet Key Exchange protocol used to negotiate key material for Security Association (SA). IKE uses the
Preshared Key to authenticate the remote IKE peer.

Phase 1 DH Group. Phase 1 is used to create the SA. DH (Diffie-Hellman) is a key exchange protocol used
during Phase 1 of the authentication process to establish pre-shared keys. There are three groups of different
prime key lengths. Group 1 is 768 bits, and Group 2 is 1,024 bits. Group 5 is 1,536 bits. If network speed is
preferred, select Group 1. If network security is preferred, select Group 5.

Phase 1 Encryption. Select a method of encryption, DES or 3DES. The encryption method determines the
length of the key used to encrypt or decrypt ESP packets. DES uses 56-bit encryption, and 3DES uses 168-bit
encryption. 3DES is recommended because it is more secure. Make sure both ends of the VPN tunnel use the
same encryption method.

Phase 1 Authentication. Select a method of authentication, MD5 or SHA. The authentication method
determines how the ESP packets are validated. MD5 is a one-way hashing algorithm that produces a 128-bit
digest. SHA is a one-way hashing algorithm that produces a 160-bit digest. SHA is recommended because it
is more secure. Make sure both ends of the VPN tunnel use the same authentication method.

Phase 1 SA Life Time. Configure the length of time a VPN tunnel is active in Phase 1. The default value is
28800 seconds.

Perfect Forward Secrecy. If the Perfect Forward Secrecy (PFS) feature is enabled, IKE Phase 2 negotiation will
generate new key material for IP traffic encryption and authentication, so hackers using brute force to break
encryption keys will not be able to obtain future IPSec keys.

Phase 2 DH Group. If the Perfect Forward Secrecy feature is disabled, then no new keys will be generated, so
you do not need to set the Phase 2 DH Group (the key for Phase 2 will match the key in Phase 1).

There are three groups of different prime key lengths. Group 1 is 768 bits, and Group 2 is 1,024 bits. Group 5
is 1,536 bits. If network speed is preferred, select Group 1. If network security is preferred, select Group 5.
You do not have to use the same DH Group that you used for Phase 1.

Phase 2 Encryption. Phase 2 is used to create one or more IPSec SAs, which are then used to key IPSec
sessions. Select a method of encryption, DES or 3DES. The encryption method determines the length of the
key used to encrypt or decrypt ESP packets. DES uses 56-bit encryption, and 3DES uses 168-bit encryption.
3DES is recommended because it is more secure. If you enable the AH Hash Algorithm on the Advanced

Chapter 6: Setting up and Configuring the Router
VPN Tab - Gateway to Gateway

Figure 6-68: IPSec Setup - IKE with Preshared Key

56

10/100 16-Port VPN Router

screen, then it is recommended to select Null to disable the encryption and decryption of ESP packets in
Phase 2 (make sure the remote VPN device also has the AH Hash Algorithm enabled). Both ends of the VPN
tunnel must use the same Phase 2 Encryption setting: DES, 3DES, or Null.

Phase 2 Authentication. Select a method of authentication, MD5 or SHA. The authentication method
determines how the ESP packets are validated. MD5 is a one-way hashing algorithm that produces a 128-bit
digest. SHA is a one-way hashing algorithm that produces a 160-bit digest. SHA is recommended because it
is more secure. If you enable the AH Hash Algorithm on the Advanced screen, then it is recommended to
select Null to disable the authentication of ESP packets in Phase 2 (make sure the remote VPN device also
has the AH Hash Algorithm enabled). Both ends of the VPN tunnel must use the same Phase 2 Authentication
setting: MD5, SHA, or Null.

Phase 2 SA Life Time. Configure the length of time a VPN tunnel is active in Phase 2. The default value is 3600
seconds.

Preshared Key. This specifies the pre-shared key used to authenticate the remote IKE peer. Enter a key of
keyboard and hexadecimal characters, e.g., My_@123 or 4d795f40313233. This field allows a maximum of
30 characters and/or hexadecimal values. Both ends of the VPN tunnel must use the same Preshared Key. It is
strongly recommended that you change the Preshared Key periodically to maximize VPN security.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

Manual

Basically, manual key management is used in small static environments or for troubleshooting purposes. If you
select Manual, you generate the key yourself, so no key negotiation is needed.

Incoming SPI (Security Parameter Index). SPI is carried in the ESP (Encapsulating Security Payload Protocol)
header and enables the receiver and sender to send the Security Association (SA), under which a packet
should be processed. Hexadecimal values are acceptable, and the valid range of hexadecimal values is from
100 to ffffffff. Each tunnel must have a unique Inbound SPI and Outbound SPI. The Incoming SPI of the Router
must match the Outgoing SPI set on the remote VPN device at the other end of the tunnel. For example, if the
Incoming SPI is 20123, then the Outgoing SPI would be 32102.

Outgoing SPI (Security Parameter Index). SPI is carried in the ESP (Encapsulating Security Payload Protocol)
header and enables the receiver and sender to send the SA, under which a packet should be processed.
Hexadecimal values are acceptable, and the valid range of hexadecimal values is from 100 to ffffffff. Each
tunnel must have a unique Inbound SPI and Outbound SPI. The Outgoing SPI of the Router must match the
Incoming SPI set on the remote VPN device at the other end of the tunnel. For example, if the Outgoing SPI is
32102, then the Incoming SPI would be 20123.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Gateway to Gateway

Figure 6-69: IPSec Setup - Manual

57

10/100 16-Port VPN Router

Encryption. Select a method of encryption, DES or 3DES. The encryption method determines the length of the
key used to encrypt or decrypt ESP packets. DES uses 56-bit encryption, and 3DES uses 168-bit encryption.
3DES is recommended because it is more secure. Make sure both ends of the VPN tunnel use the same
encryption method.

Authentication. Select a method of authentication, MD5 or SHA. The authentication method determines how
the ESP packets are validated. MD5 is a one-way hashing algorithm that produces a 128-bit digest. SHA is a
one-way hashing algorithm that produces a 160-bit digest. SHA is recommended because it is more secure.
Make sure both ends of the VPN tunnel use the same authentication method.

Encryption Key. This field specifies a key used to encrypt and decrypt IP traffic. Enter a key of hexadecimal
values in the Encryption Key field. If you selected DES as the encryption method, then the Encryption Key
must be 16-bit, which requires 16 hexadecimal values. If you do not enter enough hexadecimal values, then
the rest of the Encryption Key will be automatically completed with zeroes, so the Encryption Key will be
16-bit. If you selected 3DES as the encryption method, then the Encryption Key must be 48-bit, which
requires 48 hexadecimal values. If you do not enter enough hexadecimal values, then the rest of the
Encryption Key will be automatically completed with zeroes, so the Encryption Key will be 48-bit. Make sure
both ends of the VPN tunnel use the same Encryption Key.

Authentication Key. This field specifies a key used to authenticate IP traffic . Enter a key of hexadecimal v alues
in the Authentication Key field. If you selected MD5 as the authentication method, then the Authentication Key
must be 32-bit, which requires 32 hexadecimal values. If you do not enter enough hexadecimal values, then
the rest of the Encryption Key will be automatically completed with zeroes, so the Authentication Key will be
32-bit. If you selected SHA1 as the authentication method, then the Authentication Key must be 40-bit, which
requires 40 hexadecimal values. If you do not enter enough hexadecimal values, then the rest of the
Authentication Key will be automatically completed with zeroes, so the Authentication Key will be 40-bit.
Make sure both ends of the VPN tunnel use the same Authentication Key.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

Advanced

For most users, the settings on the VPN page should suffice; however, the Router provides advanced IPSec
settings for advanced users. Click the Advanced button to view the Advanced settings, which are available only
for VPN tunnels using the IKE with Preshared Key mode.

Aggressive Mode. There are two types of Phase 1 exchanges, Main Mode and Aggressive Mode.
Aggressive Mode requires half of the main mode messages to be exchanged in Phase 1 of the SA exchange. If

network security is preferred, leave the Aggressive Mode checkbox unchecked. If network speed is preferred,

Chapter 6: Setting up and Configuring the Router
VPN Tab - Gateway to Gateway

Figure 6-70: IKE with Preshared Key - Advanced

58

10/100 16-Port VPN Router

select Aggressive Mode. If you select one of the Dynamic IP types for the Remote Security Gateway Type
setting, then Main Mode will be unavailable, so Aggressive Mode will be used.

Compress (Support IP Payload compression Protocol (IP Comp)). The Router supports IP Payload Compression
Protocol, which is used to reduce the size of IP datagrams. If this feature is enabled, the Router will propose
compression when initiating a connection. If the responders reject this proposal, then the Router will not
implement compression. When the Router works as a responder, the Router will always accept compression
even when the Compress feature has not been enabled. Select Compress to support this protocol.

Keep-Alive. This feature helps maintain the connections of IPSec tunnels. Whenever a connection is dropped
and the drop is detected, then the connection will be re-established immediately. Select Keep-Alive to enable
this feature.

AH Hash Algorithm. The AH (Authentication Header) protocol describes the packet format and default
standards for packet structure. If AH is used as a security protocol, portions of the original IP header are used
to verify the integrity of the entire packet during the hashing process, so protection is extended forward into
the IP header . Select an algorithm, MD5 or SHA1. MD5 produces a 128-bit digest to authenticate packet data,
and SHA1 produces a 160-bit digest to authenticate packet data. Both ends of the VPN tunnel should use the
same AH Hash Algorithm.

NetBIOS Broadcast. Click the checkbox if you want NetBIOS traffic to pass through the VPN tunnel. By default,
the Router blocks these broadcasts.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

VPN Tab - Client to Gateway

Use this screen to create a new tunnel between a local VPN device and a mobile user.

Add a New Tunnel

You can select Tunnel to create a tunnel for a single mobile user, or select Group VPN to create tunnels for
multiple VPN clients. The Group VPN feature facilitates the setup of tunnels for multiple VPN clients, so you do not
need to individually configure multiple remote VPN clients. After you have selected Tunnel or Group VPN, the
settings available on this screen may change, depending on which selection you have made.

Tunnel No. A tunnel number between 1-50 will be automatically generated.
Tunnel Name. Enter a name for this VPN tunnel, such as Home Office or New York Branch. This allows you to

identify multiple tunnels and does not have to match the name used at the other end of the tunnel.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Client to Gateway

Figure 6-71: Client to Gateway

59

10/100 16-Port VPN Router

Interface. Select the appropriate Interface (WAN1, WAN2...) from the pull-down menu. If you designate more than
two WAN ports on the Network or Port Management page, then additional WAN ports will be available.

Enable. Check this box to enable this VPN tunnel.

Group VPN

The Group VPN settings will appear only if you are adding a new Group VPN. Up to two Group VPNs are supported
by the Router.

Group No. A group number will be automatically generated.
Group Name. Enter a name for this Group VPN, such as American Managers Group or West Coast Locations.
Interface. Select the appropriate Interface (WAN1, WAN2...) from the pull-down menu. If you designate more than

two WAN ports on the Network or Port Management page, then additional WAN ports will be available.
Enable. Check the box to enable this Group VPN.

Local Group Setup

Local Security Gateway Type (not applicable to Group VPNs)

Select one of these five available types: IP Only, IP + Domain Name(FQDN) Authentication, IP + E-mail

Addr.(USER FQDN) Authentication, Dynamic IP + Domain Name(FQDN) Authentication, or Dynamic IP +
E-mail Addr.(USER FQDN) Authentication.

(If you want to use a Fully Qualified Domain Name (FQDN) for authentication but you do not have one, visit
www.dyndns.org to set up a Dynamic Domain Name System (DDNS) account. Then enable and configure the
10/100 16-Port VPN Router’s DDNS settings on the DDNS screen.)

The Local Security Gateway Type you select should match the Remote Security Gateway Type selected on the
remote VPN client(s) at the other end of the tunnel(s).

After you have selected the Local Security Gateway Type, the settings available on this screen may change,
depending on which selection you have made.

IP Only. If you select IP Only, then only the computer with a specific IP address will be able to access the
tunnel. The WAN (or Internet) IP address of the Router will automatically appear in the IP address field.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Client to Gateway

Figure 6-72: Local Security Gateway Type - IP Only

Figure 6-73: Local Security Gateway Type -

IP + Domain Name (FQDN) Authentication

60

10/100 16-Port VPN Router

IP + Domain Name(FQDN) Authentication. If you select this type, enter the FQDN (Fully Qualified Domain
Name) in the Domain Name field, and an IP address will automatically appear in the IP address field. The
FQDN is the host name and domain name for a specific computer on the Internet. An example of a FQDN is
vpn.myvpnserver.com. The FQDN and IP address must match the FQDN and IP address of the Remote Client at
the other end of the tunnel. The FQDN and IP can be used for only one tunnel connection.

IP + E-mail Addr.(USER FQDN) Authentication. If you select this type, enter the appropriate e-mail address in
the E-mail address fields, and an IP address will automatically appear in the IP address field.

Dynamic IP + Domain Name(FQDN) Authentication. If the Local Security Gateway has a dynamic IP and you
want to use the Domain Name for authentication, then select this type. When the Remote Client asks to create
a tunnel with the Router, the Router will work as a responder. For authentication, complete the Domain Name
field, and make sure it matches the Domain Name set on the Remote Client. The Domain Name can be used
for only one tunnel connection, so you can’t use the same Domain Name to create another new tunnel
connection.

Figure 6-74: Local Security Gateway Type -

IP + E-mail Addr. (USER FQDN) Authentication

Figure 6-75: Local Security Gateway Type -

Dynamic IP + Domain Name (FQDN) Authentication

Dynamic IP + E-mail Addr.(USER FQDN) Authentication. If the Local Security Gateway has a dynamic IP and
you want to use the e-mail address for authentication, then select this type. When the Remote Client asks to
create a tunnel with the Router , the Router will work as a responder. For authentication, enter the appropriate
e-mail address in the E-mail address fields.

Local Security Group Type

Select the local LAN user(s) behind the Router that can use this VPN tunnel. Select one of these three available
types: IP, Subnet, or IP Range. The Local Security Group Type you select should match the Remote Security
Group Type selected on the remote VPN client(s) at the other end of the tunnel(s).

After you have selected the Local Security Group Type, the settings available on this screen may change,
depending on which selection you have made.

IP. If you select IP Only, then only the computer with a specific IP address will be able to access the tunnel.
Enter the appropriate IP address. The default IP is 192.168.1.0.

Subnet. If you select Subnet, which is the default, then all computers on the local subnet will be able to
access the tunnel. Complete the IP address and Subnet Mask fields. The default IP is 192.168.1.0, and the
default Subnet Mask is 255.255.255.0.

IP Range. If you select IP Range, then you can specify a range of IP addresses within the subnet that will be
able to access the tunnel. Complete the IP range fields. The default IP Range is 192.168.1.0~254.

Figure 6-76: Local Security Gateway Type -

Dynamic IP + E-mail Addr. (USER FQDN) Authentication

Figure 6-77: Local Security Group Type - IP

Figure 6-78: Local Security Group Type - Subnet

Figure 6-79: Local Security Group Type - IP Range

Chapter 6: Setting up and Configuring the Router
VPN Tab - Client to Gateway

61

10/100 16-Port VPN Router

Remote Client Setup for a VPN Tunnel

You will have differ ent Remote Client Setup settings depending on whether you are adding a new tunnel or a new
Group VPN. If you are adding a new Group VPN, proceed to the “Remote Client Setup for a Group VPN” section.

Remote Client

Select one of these five available types: IP Only, IP + Domain Name(FQDN) Authentication, IP + E-mail

Addr.(USER FQDN) Authentication, Dynamic IP + Domain Name(FQDN) Authentication, or Dynamic IP +
E-mail Addr.(USER FQDN) Authentication.

(If you want the remote client to use a Fully Qualified Domain Name (FQDN) for authentication but the remote
client does not have one, visit www.dyndns.org to set up a Dynamic Domain Name System (DDNS) account.)

After you have selected the Remote Client, the settings available on this screen may change, depending on which
selection you have made.

IP Only. If you know the fixed IP address of the Remote Client, select IP Only. Only the computer with this
specific IP address will be able to access the tunnel. In the IP address field, enter the IP address of the
Remote Client at the other end of the tunnel. (The Remote Client can be a computer with VPN client software
that support IPSec.)

IP + Domain Name(FQDN) Authentication. If you select this type, enter the FQDN (Fully Qualified Domain
Name) and IP address of the Remote Client, which can be a computer with VPN client software that supports
IPSec. (Enter the FQDN in the Domain Name field, and enter the IP address in the IP address field.) The FQDN
is the host name and domain name for a specific computer on the Internet. An example of a FQDN is
vpn.remotevpnserver.com. The FQDN and IP address must match the FQDN and IP address of the Local
Security Gateway type selected on the Remote Client. The FQDN and IP can be used for only one tunnel
connection.

Figure 6-80: Remote Client for VPN Tunnel - IP Only

Figure 6-81: Remote Client for VPN Tunnel -

IP + Domain Name (FQDN) Authentication

IP + E-mail Addr.(User FQDN) Authentication. If you select this type, enter the e-mail address and IP address
of the Remote Client at the other end of the tunnel. (The Remote Client can be a computer with VPN client
software that support IPSec.)

Dynamic IP + Domain Name(FQDN) Authentication. If the Remote Security Gateway has a dynamic IP and you
want to use the Domain Name for authentication, then select this type. When the Remote Security Gateway
asks to create a tunnel with the Router , the Router will w ork as a responder. For authentication, complete the
Domain Name field, and make sure it matches the Domain Name set on the Local Gateway of the Remote
Client. The Domain Name can be used for only one tunnel connection, so you can’t use the same Domain
Name to create another new tunnel connection.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Client to Gateway

Figure 6-82: Remote Client for VPN Tunnel -

IP + E-mail Addr. (User FQDN) Authentication

Figure 6-83: Remote Client for VPN Tunnel -

Dynamic IP + Domain Name (FQDN) Authentication

62

10/100 16-Port VPN Router

Dynamic IP + E-mail Addr.(User FQDN) Authentication. If the Remote Security Gateway has a dynamic IP and
you want to use the e-mail address for authentication, then select this type. When the Remote Security
Gateway asks to create a tunnel with the Router, the Router will work as a responder. For authentication,
enter the appropriate e-mail address in the E-mail address fields.

Remote Client Setup for a Group VPN

Remote Client. There are three types of Remote Client: Domain Name (FQDN), E-mail Address (User FQDN), and
Microsoft XP/2000 VPN Client.

Remote Client

Select one of these three types: Domain Name(FQDN), E-mail Address(USER FQDN), or Microsoft XP/2000
VPN Client.

(If you want to use an FQDN (Fully Qualified Domain Name) but you have not set it up, visit www.dyndns.org to set
up a Dynamic Domain Name System (DDNS) account.)

After you have selected the Remote Client, the settings available on this screen may change, depending on which
selection you have made.

Domain Name(FQDN). If you select this type, enter the FQDN (Fully Qualified Domain Name) of the Remote
Client in the Domain Name field. The FQDN is the host name and domain name for a specific computer on the
Internet. An example of a FQDN is vpn.remotevpnserver.com. The FQDN must match the FQDN setting on the
Remote Client. When the Remote Client asks to create a tunnel with the Router, the Router will work as a
responder.

Figure 6-84: Remote Client for VPN Tunnel -

Dynamic IP + E-mail Addr. (User FQDN) Authentication

Figure 6-85: Remote Client for Group VPN -

Domain Name (FQDN)

E-mail Address(USER FQDN). If you select this type, enter the e-mail address of the Remote Client at the other
end of the tunnel.

Microsoft XP/2000 VPN Client. If the Remote Client has a dynamic IP address and is a Microsoft VPN client,
select this type. The difference between Microsoft and other VPN clients is that the Microsoft VPN client does
not support Aggressive Mode and the two Remote Client options, Domain Name(FQDN) and E-mail
Address(USER FQDN).

IPSec Setup

In order for any encryption to occur, the two ends of a VPN tunnel must agree on the methods of encryption,
decryption, and authentication. This is done by sharing a key to the encryption code. For key management, there
are two modes available; select Manual or IKE with Preshared Key. Both ends of a VPN tunnel must use the
same mode of key management.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Client to Gateway

Figure 6-86: Remote Client for Group VPN -

E-mail Address (USER FQDN)

Figure 6-87: Remote Client for Group VPN -

Microsoft XP/2000 VPN Client

63

10/100 16-Port VPN Router

After you have selected the Keying Mode, the settings available on this screen may change, depending on which
selection you have made.

IKE with Preshared Key

IKE is an Internet Key Exchange protocol used to negotiate key material for Security Association (SA). IKE uses the
Preshared Key to authenticate the remote IKE peer.

Phase 1 DH Group. Phase 1 is used to create the SA. DH (Diffie-Hellman) is a key exchange protocol used
during Phase 1 of the authentication process to establish pre-shared keys. There are three groups of different
prime key lengths. Group 1 is 768 bits, and Group 2 is 1,024 bits. Group 5 is 1,536 bits. If network speed is
preferred, select Group 1. If network security is preferred, select Group 5.

Phase 1 Encryption. Select a method of encryption, DES or 3DES. The encryption method determines the
length of the key used to encrypt or decrypt ESP packets. DES uses 56-bit encryption, and 3DES uses168-bit
encryption. 3DES is recommended because it is more secure. Make sure both ends of the VPN tunnel use the
same encryption method.

Phase 1 Authentication. Select a method of authentication, MD5 or SHA. The authentication method
determines how the ESP packets are validated. MD5 is a one-way hashing algorithm that produces a 128-bit
digest. SHA is a one-way hashing algorithm that produces a 160-bit digest. SHA is recommended because it
is more secure. Make sure both ends of the VPN tunnel use the same authentication method.

Figure 6-88: IPSec Setup - IKE with

Preshared Key

Phase 1 SA Life Time. Configure the length of time a VPN tunnel is active in Phase 1. The default value is
28800 seconds.

Perfect Forward Secrecy. If the Perfect Forward Secrecy (PFS) feature is enabled, IKE Phase 2 negotiation will
generate new key material for IP traffic encryption and authentication, so hackers using brute force to break
encryption keys will not be able to obtain future IPSec keys.

Phase 2 DH Group. If the Perfect Forward Secrecy feature is disabled, then no new keys will be generated, so
you do not need to set the Phase 2 DH Group (the key for Phase 2 will match the key in Phase 1). There are
three groups of different prime key lengths. Group 1 is 768 bits, and Group 2 is 1,024 bits. Group 5 is 1,536
bits. If network speed is preferred, select Group 1. If network security is preferred, select Group 5. You do not
have to use the same DH Group that you used for Phase 1.

Phase 2 Encryption. Phase 2 is used to create one or more IPSec SAs, which are then used to key IPSec
sessions. Select a method of encryption, DES or 3DES. The encryption method determines the length of the
key used to encrypt or decrypt ESP packets. DES uses 56-bit encryption, and 3DES uses 168-bit encryption.
3DES is recommended because it is more secure. If you enable the AH Hash Algorithm on the Advanced
screen, then it is recommended to select Null to disable the encryption and decryption of ESP packets in

Chapter 6: Setting up and Configuring the Router
VPN Tab - Client to Gateway

64

10/100 16-Port VPN Router

Phase 2 (make sure the remote VPN device also has the AH Hash Algorithm enabled). Both ends of the VPN
tunnel must use the same Phase 2 Encryption setting: DES, 3DES, or Null.

Phase 2 Authentication. Select a method of authentication, MD5 or SHA. The authentication method
determines how the ESP packets are validated. MD5 is a one-way hashing algorithm that produces a 128-bit
digest. SHA is a one-way hashing algorithm that produces a 160-bit digest. SHA is recommended because it
is more secure. If you enable the AH Hash Algorithm on the Advanced screen, then it is recommended to
select Null to disable the authentication of ESP packets in Phase 2 (make sure the remote VPN device also
has the AH Hash Algorithm enabled). Both ends of the VPN tunnel must use the same Phase 2 Authentication
setting: MD5, SHA, or Null.

Phase 2 SA Life Time. Configure the length of time a VPN tunnel is active in Phase 2. The default value is 3600
seconds.

Preshared Key. This specifies the pre-shared key used to authenticate the remote IKE peer. Enter a key of
keyboard and hexadecimal characters, e.g., My_@123 or 4d795f40313233. This field allows a maximum of
30 characters and/or hexadecimal values. Both ends of the VPN tunnel must use the same Preshared Key. It is
strongly recommended that you change the Preshared Key periodically to maximize VPN security.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

Manual (not applicable to Group VPNs)

Basically, manual key management is used in small static environments or for troubleshooting purposes. If you
select Manual, you generate the key yourself, so no key negotiation is needed.

Incoming SPI (Security Parameter Index). SPI is carried in the ESP (Encapsulating Security Payload Protocol)
header and enables the receiver and sender to send the Security Association (SA), under which a packet
should be processed. Hexadecimal values are acceptable, and the valid range of hexadecimal values is from
100 to ffffffff. Each tunnel must have a unique Inbound SPI and Outbound SPI. The Incoming SPI of the Router
must match the Outgoing SPI set on the remote VPN device at the other end of the tunnel. For example, if the
Incoming SPI is 20123, then the Outgoing SPI would be 32102.

Outgoing SPI (Security Parameter Index). SPI is carried in the ESP (Encapsulating Security Payload Protocol)
header and enables the receiver and sender to send the SA, under which a packet should be processed.
Hexadecimal values are acceptable, and the valid range of hexadecimal values is from 100 to ffffffff. Each
tunnel must have a unique Inbound SPI and Outbound SPI. The Outgoing SPI of the Router must match the
Incoming SPI set on the remote VPN device at the other end of the tunnel. For example, if the Outgoing SPI is
32102, then the Incoming SPI would be 20123.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Client to Gateway

Figure 6-89: IPSec Setup - Manual

65

10/100 16-Port VPN Router

Encryption. Select a method of encryption, DES or 3DES. The encryption method determines the length of the
key used to encrypt or decrypt ESP packets. DES uses 56-bit encryption, and 3DES uses 168-bit encryption.
3DES is recommended because it is more secure. Make sure both ends of the VPN tunnel use the same
encryption method.

Authentication. Select a method of authentication, MD5 or SHA. The authentication method determines how
the ESP packets are validated. MD5 is a one-way hashing algorithm that produces a 128-bit digest. SHA is a
one-way hashing algorithm that produces a 160-bit digest. SHA is recommended because it is more secure.
Make sure both ends of the VPN tunnel use the same authentication method.

Encryption Key. This field specifies a key used to encrypt and decrypt IP traffic. Enter a key of hexadecimal
values in the Encryption Key field. If you selected DES as the encryption method, then the Encryption Key
must be 16-bit, which requires 16 hexadecimal values. If you do not enter enough hexadecimal values, then
the rest of the Encryption Key will be automatically completed with zeroes, so the Encryption Key will be
16-bit. If you selected 3DES as the encryption method, then the Encryption Key must be 48-bit, which
requires 48 hexadecimal values. If you do not enter enough hexadecimal values, then the rest of the
Encryption Key will be automatically completed with zeroes, so the Encryption Key will be 48-bit. Make sure
both ends of the VPN tunnel use the same Encryption Key.

Authentication Key. This field specifies a key used to authenticate IP traffic . Enter a key of hexadecimal v alues
in the Authentication Key field. If you selected MD5 as the authentication method, then the Authentication Key
must be 32-bit, which requires 32 hexadecimal values. If you do not enter enough hexadecimal values, then
the rest of the Encryption Key will be automatically completed with zeroes, so the Authentication Key will be
32-bit. If you selected SHA1 as the authentication method, then the Authentication Key must be 40-bit, which
requires 40 hexadecimal values. If you do not enter enough hexadecimal values, then the rest of the
Authentication Key will be automatically completed with zeroes, so the Authentication Key will be 40-bit.
Make sure both ends of the VPN tunnel use the same Authentication Key.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

Advanced

For most users, the settings on the VPN page should suffice; however, the Router provides advanced IPSec
settings for advanced users. Click the Advanced button to view the Advanced settings, which are available only
for VPN tunnels using the IKE with Preshared Key mode.

Aggressive Mode. There are two types of Phase 1 exchanges, Main Mode and Aggressive Mode.
Aggressive Mode requires half of the main mode messages to be exchanged in Phase 1 of the SA exchange. If

network security is preferred, leave the Aggressive Mode checkbox unchecked. If network speed is preferred,
select Aggressive Mode. If you select one of the Dynamic IP types for the Remote Security Gateway Type

Chapter 6: Setting up and Configuring the Router
VPN Tab - Client to Gateway

Figure 6-90: IKE with Preshared Key - Advanced

66

10/100 16-Port VPN Router

setting, then Main mode will be unavailable, so Aggressive Mode will be used—unless the Remote Client is
Microsoft XP/2000 VPN client. For Microsoft XP/2000 VPN clients, then Aggressive Mode will be unavailable,
so Main mode will be used.

Compress (Support IP Payload compression Protocol (IP Comp)). The Router supports IP Payload Compression
Protocol, which is used to reduce the size of IP datagrams. If this feature is enabled, the Router will propose
compression when initiating a connection. If the responders reject this proposal, then the Router will not
implement compression. When the Router works as a responder, the Router will always accept compression
even when the Compress feature has not been enabled. Select Compress to support this protocol.

Keep-Alive. This feature helps maintain the connections of IPSec tunnels. Whenever a connection is dropped
and the drop is detected, then the connection will be re-established immediately. Select Keep-Alive to enable
this feature.

AH Hash Algorithm. The AH (Authentication Header) protocol describes the packet format and default
standards for packet structure. If AH is used as a security protocol, portions of the original IP header are used
to verify the integrity of the entire packet during the hashing process, so protection is extended forward into
the IP header . Select an algorithm, MD5 or SHA1. MD5 produces a 128-bit digest to authenticate packet data,
and SHA1 produces a 160-bit digest to authenticate packet data. Both ends of the VPN tunnel should use the
same AH Hash Algorithm.

NetBIOS Broadcast. Click the checkbox if you want NetBIOS traffic to pass through the VPN tunnel. By default,
the Router blocks these broadcasts.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

Chapter 6: Setting up and Configuring the Router
VPN Tab - Client to Gateway

67

10/100 16-Port VPN Router

VPN Tab - VPN Pass Through

The VPN Passthrough screen allows you to enable or disable passthrough for a variety of VPN methods.

IPSec Pass Through

Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP
layer. IPSec Pass Through is enabled by default to allow IPSec tunnels to pass through the Router.

PPTP Pass Through

Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be tunneled through an IP
network. PPTP Pass Through is enabled by default.

L2TP Pass Through

Layer 2 Tunneling Protocol is the method used to enable Point-to-Point sessions via the Internet on the Layer 2
level. L2TP Pass Through is enabled by default.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

Figure 6-91: VPN Pass Through

Chapter 6: Setting up and Configuring the Router
VPN Tab - VPN Pass Through

68

10/100 16-Port VPN Router

Log Tab - System Log

On this screen you will be able to configure the Router’s log settings, so you can specify how you want its activity
logs handled.

Syslog

Syslog is a standard protocol used to capture information about network activity. The Router supports this
protocol and can send its activity logs to an external server.

Enable Syslog. If you check the box, the Router’s Syslog feature will be enabled.
Syslog Server. In addition to the standard event log, the Router can send a detailed log to an external Syslog

server. The Router’s Syslog captures all log activities and includes this information about all data transmissions:
every connection source and destination IP address, IP service, and number of bytes transferred. Enter the Syslog
server name or IP address in the Syslog Server field. Click the Save Settings button to save your changes, and
then restart the Router for the changes to take effect.

E-mail

You may want logs or alert messages to be e-mailed to you. If so, then configure the E-mail settings.
Enable E-Mail Alert. If you check the box, The Router’s E-Mail Alert feature will be enabled.

Figure 6-92: System Log

Mail Server. If you w ant any log or alert information e-mailed to you, then enter the name or numerical IP address
of your SMTP server. Your ISP can provide you with this information.

Send E-mail to. This is the e-mail address to which your log files will be sent. If you do not want copies of the log
information e-mailed to you, then leave this field blank.

Log Queue Length. You can designate the length of the log that will be e-mailed to you. The default is 50 entries,
so unless you change this setting, the Router will e-mail the log to you when there are more than 50 log entries.

Log Time Threshold. You can designate how often the log will be e-mailed to you. The default is 10 minutes, so
unless you change this setting, the Router will e-mail the log to you every 10 minutes.

The Router will e-mail the log every time the Log Queue Length or Log Time Threshold is reached.
E-mail Log Now. Click the E- mail Lo g Now button to immediately send the log to the address in the Send E-mail

to field.

Chapter 6: Setting up and Configuring the Router
Log Tab - System Log

69

10/100 16-Port VPN Router

Log Setting

Alert Log

You can receive alert logs for specific types of events: Syn Flooding, IP Spoofing, Win Nuke, Ping of Death, and
Unauthorized Login Attempt. To be notified of a specific event, click its checkbox.

General Log

You can receive logs that track specific types of events: System Error Messages, Deny Policies, Allow Policies,
Configuration Changes, and Authorized Login. To include an event in the log, click its checkbox.

View System Log. Click this button to display a log of all activities and to access a drop-down menu of the various
logs available.

From the drop-down menu, select the log you wish to view: ALL, System Log, Access Log, Fir ewall Log, or VPN
Log. When you select All, you will see a log of all activities. The System Log displays a list of cold and warm
starts, web login successes and failures, and packet filtering policies, while the Access Log shows all activities
involving local network or Internet access. The Firewall Log displays all activities regarding the Router’s firewall,
while the VPN Log shows information about VPN tunnel activity.

T o clear a log, clic k the Clear button. T o update a log, clic k the Refresh button. To exit this screen, click the Close
button.

Outgoing Log Table. Click the Outgoing Log Table button to view a temporary log of all the URLs and IP
addresses of Internet sites that users on your network have accessed. Each event is described, and the LAN IP
address, Destination URL/IP, and Service/Port Number for each site are listed. Click the Refresh button to update
the log. To exit this screen, click the Close button.

Incoming Log Table. Click the Incoming Log Table button to view a temporary log describing all the incoming
Internet traffic. Each event is described, and the Source IP and Destination Port number for each event are listed.
Click the Refresh button to update the log. To exit this screen, click the Close button.

Clear Log Now. Click this button to clear your log without e-mailing it. Only use this button if you are willing to
lose your log information.

Click the Save Settings button to save your changes, or click the Cancel Changes button to undo the changes.

Figure 6-93: View All Logs

Figure 6-94: View VPN Log

Figure 6-95: View Outgoing Log Table

Figure 6-96: View Incoming Log Table

Chapter 6: Setting up and Configuring the Router
Log Tab - System Log

70

10/100 16-Port VPN Router

Log Tab - System Statistics

This screen displays statistics about all of the Router’s ports (LAN, DMZ, and all WAN ports). For each port, the
following statistics are listed: Device Name, Status, IP Address, MAC Address, Subnet Mask, Default Gateway,
number of Received Packets, number of Sent Packets, number of Total Packets, number of Received Bytes,
number of Sent Bytes, number of Total Bytes, number of Error Packets Received, and number of Dropped Packets
Received.

When there are more than two WAN ports, click Next page to see additional system statistics on the next page.
Then click Previous page to see the system statistics on the previous page.

Click the Refresh button to update the statistics.

Figure 6-97: System Statistics

Chapter 6: Setting up and Configuring the Router
Log Tab - System Statistics

71

10/100 16-Port VPN Router

Wizard Tab

Use this tab to access two Setup Wizards, the Basic Setup Wizard and the Access Rule Setup Wizard. Run the
Basic Setup Wizard to set up the Router for your Internet connection(s). Run the Access Rule Setup Wizard to set
up the security policy for the Router.

Basic Setup

If you want to change the number of WAN ports, go to the Change Number of WAN Ports section. If you want to
modify the Router’s network settings, go to the Modify the Router’s Network Settings section.

Change Number of WAN Ports

1. Click the Launch Now button to run the Basic Setup Wizard.

2. The screen shown in Figure 6-99 will appear. If you want to change the number of WAN ports, select Set the
total number of WAN ports. Click the Next button to continue. Click the Exit button if you want to exit the
Setup Wizard.

3. Select the number of WAN ports you want to use, up to a maximum of 7. Click the Next button to continue.
Click the Exit button if you want to exit the Setup Wizard.

Figure 6-98: Wizar d

Figure 6-99: Basic Setup Wizard - Change Number

of WAN Ports

Chapter 6: Setting up and Configuring the Router
Wizard Tab

Figure 6-100: Change Number of WAN Ports

72

10/100 16-Port VPN Router

4. The screen shown in Figure 6-101 will appear. If you want to save your changes, click the Save Settings
button. Click the Previous button if you want to return to the previous screen. Click the Exit button if you want
to exit the Setup Wizard (your changes will not be saved).

Modify the Router’s Network Settings

1. Click the Launch Now button to run the Basic Setup Wizard.

2. The screen shown in Figure 6-102 will appear. If you want to edit the Router’s network settings, select Edit
Network Settings. Click the Next button to continue. Click the Exit button if you want to exit the Setup
Wizard.

3. Your Internet Service Provider (ISP) may require you to use a host and domain name for your Internet
connection. If your ISP requires them, complete the Host Name and Domain Name fields; otherwise leave
these blank. Click the Next button to continue. Click the Previous button if you want to return to the previous
screen. Click the Exit button if you want to exit the Setup Wizard.

Figure 6-101: Save Settings

Chapter 6: Setting up and Configuring the Router
Wizard Tab

Figure 6-102: Basic Setup Wizard - Edit

Network Settings

Figure 6-103: Host and Domain Name

73

10/100 16-Port VPN Router

4. On the screen shown in Figure 6-104, select the WAN (or Internet) Connection Type for the Interface listed
(generally, the Setup Wizard will begin with WAN1). Select the appropriate connection type: Obtain an IP
automatically, Static IP, or PPPoE. Click the Next button to continue. Click the Previous button if you want
to return to the previous screen. Click the Exit button if you want to exit the Setup Wizard.

5. Depending on which connection type you have selected, the appropriate screen will appear. Follow the
instructions for the appropriate connection type:

Obtain an IP automatically

If you chose Obtain an IP automatically, the screen shown in Figure 6-105 will appear. If you want to use the
ISP’s DNS server, select Use DNS Server provided by ISP (default). If you want to designate a specific DNS
server IP address, select Use the Following DNS Server Addresses, and enter the DNS server IP addresses
you want to use (you must enter at least one).

Click the Next button to continue , and proceed to step 6. Click the Previous button if you w ant to return to the
previous screen. Click the Exit button if you want to exit the Setup Wizard.

Figure 6-104: WAN Connection Type

Chapter 6: Setting up and Configuring the Router
Wizard Tab

Figure 6-105: Obtain an IP Automatically

74

10/100 16-Port VPN Router

Static IP

If you chose Static IP, the screen shown in Figure 6-106 will appear. Complete the Static IP, Subnet Mask, and
Default Gateway fields with the settings provided by your ISP. Click the Next button, and then the screen
shown in Figure 6-107 will appear.

Enter the DNS server IP addresses you want to use (you must enter at least one). Click the Next button to
continue, and proceed to step 6. Click the Previous button if you want to return to the previous screen. Click
the Exit button if you want to exit the Setup Wizard.

Figure 6-106: Static IP

Chapter 6: Setting up and Configuring the Router
Wizard Tab

Figure 6-107: Static IP - DNS Servers

75

10/100 16-Port VPN Router

PPPoE

If you chose PPPoE, the screen shown in Figure 6-108 will appear. Complete the User Name and Password
fields with the information provided by your ISP. Click the Next button, and then the screen shown in Figure
6-109 will appear.

Select Connect on demand or Keep alive. If you select the Connect on demand option, the PPPoE
connection will be disconnected after a specified period of inactivity (Max. Idle Time). In the Max. Idle Time
field, enter the number of minutes you want the Router to wait before your Internet access disconnects.

If you select the Keep Alive option, the Router will keep the connection alive by sending out a few data
packets periodically, so your ISP thinks that the connection is still active. This option keeps your
PPPoE-enabled connection active indefinitely, even when it sits idle. In the Redial period field, enter the
number of seconds you want the Router to wait between data transmissions.

Click the Next button to continue , and proceed to step 6. Click the Previous button if you w ant to return to the
previous screen. Click the Exit button if you want to exit the Setup Wizard.

Figure 6-108: PPPoE

Chapter 6: Setting up and Configuring the Router
Wizard Tab

Figure 6-109: PPPoE - Connect on Demand or Keep Alive

76

10/100 16-Port VPN Router

6. Repeat step 5 for the rest of the Router’s WAN ports. When it is time to configure the DMZ port, proceed to
step 7.

7. On the screen shown in Figure 6-110, enter the DMZ IP address provided by the ISP in the DMZ IP fields. Then
complete the Subnet Mask field. If you are not using the DMZ port, enter 0 in each of the DMZ IP fields. Click
the Next button to continue. Click the Previous button if you want to return to the previous screen. Click the
Exit button if you want to exit the Setup Wizard.

8. The screen shown in Figure 6-111 will appear. If you want to save your changes, click the Save Settings
button. Click the Previous button if you want to return to the previous screen. Click the Exit button if you
want to exit the Setup Wizard.

Figure 6-110: DMZ

Chapter 6: Setting up and Configuring the Router
Wizard Tab

Figure 6-111: Save Settings

77

10/100 16-Port VPN Router

Access Rule Setup

1. Click the Launch Now button to run the Access Rule Wizard.

2. The screen shown in Figure 6-112 will appear. This screen explains the Access Rules, including the Router’s
Default Rules. Click the Next button to continue. Click the Exit button if you want to exit the Access Rule
Setup Wizard.

3. The screen shown in Figure 6-113 will appear. From the drop-down menu, select Allow or Deny depending
on the intent of the Access Rule. Click the Next button to continue. Click the Previous button if you want to
return to the previous screen. Click the Exit button if you want to exit the Access Rule Setup Wizard.

Figure 6-112: Access Rules

Chapter 6: Setting up and Configuring the Router
Wizard Tab

Figure 6-113: Action

78

10/100 16-Port VPN Router

4. The screen shown in Figure 6-114 will appear. Select the service you want from the Service pull-down menu.
Click the Next button to continue. Click the Previous button if you want to r eturn to the previous screen. Click
the Exit button if you want to exit the Access Rule Setup Wizard.

5. The screen shown in Figure 6-115 will appear. For this service, you can select whether or not you want the
Router to keep a log tracking this type of activity. To keep a log, select Log packets matching this access
rule. If you don’t want a log , select Do not log pack ets matching this access rule . Clic k the Next button to
continue. Click the Previous button if you want to return to the previous screen. Click the Exit button if you
want to exit the Access Rule Setup Wizard.

6. The screen shown in Figure 6-116 will appear . Select the appropriate Source Interface (LAN, DMZ, Any, WAN1,
WAN2...) from the Ethernet pull-down menu.

Select the Source IP address(es) for this Access Rule. If it can be any IP address, select Any. If it is one IP
address, select Single and enter the IP address in the Source IP fields. If it is a range of IP addresses, select

Range, and enter the IP addresses in the Source IP fields. Click the Next button to continue. Click the
Previous button if you want to return to the previous screen. Click the Exit button if you want to exit the

Access Rule Setup Wizard.

Figure 6-114: Service

Chapter 6: Setting up and Configuring the Router
Wizard Tab

Figure 6-115: Log

Figure 6-116: Source

79

10/100 16-Port VPN Router

7. The screen shown in Figure 6-117 will appear. Select the Destination IP address(es) for this Access Rule. If it
can be any IP address, select Any . If it is one IP address, select Single and enter the IP address in the

Destination IP fields. If it is a range of IP addresses, select Range, and enter the IP addresses in the
Destination IP fields. Click the Next button to continue. Click the Previous button if you want to return to the

previous screen. Click the Exit button if you want to exit the Access Rule Setup Wizard.

8. The screen shown in Figure 6-118 will appear. Decide when you want this Access Rule to be enforced. Select
Always if you want the Access Rule to be always enforced. Select Scheduling if you want to specify when
the Access Rule should be in effect. Decide what times and which days of the week the Access Rule should
be enforced. Then enter the hours and minutes in 24-hour format, and select the appropriate days of the
week. Click the Next button to continue. Click the Previous button if you want to return to the previous
screen. Click the Exit button if you want to exit the Access Rule Setup Wizard.

9. The screen shown in Figure 6-119 will appear. If you want to save your changes, click the Save Settings
button. Click the Previous button if you want to return to the previous screen. Click the Exit button if you
want to exit the Access Rule Setup Wizard without saving the settings.

10. A screen will appear indicating that the settings have been saved. If you want to add another Access Rule,
click the OK button, and the first screen of the Access Rule Setup Wizard will appear. If you want to exit the
Access Rule Setup Wizard, click the Cancel button, and the Access Rules screen will appear.

Figure 6-117: Destination

Chapter 6: Setting up and Configuring the Router
Wizard Tab

Figure 6-118: Scheduling

Figure 6-119: Save Settings

80

10/100 16-Port VPN Router

Support Tab

From this tab, you will be able to access the Support page of the Linksys website, which offers a variety of
resources. You must have an active Internet connection before you can visit the Linksys website.

Manual

If you want the latest version of this User Guide, click the On Line Manual button. The Support page of the
Linksys website will appear. Click the Downloads button from the Technical Support menu, and then select the
RV016 - 10/100 16-Port VPN Router from the drop-down menu. Select your operating system, and then click
Downloads for this Product. Click User Guide.

Linksys Web Site

Click the Linksys Web Site button, and the Support page of the Linksys Website, www.linksys.com, will appear.

Logout Tab

The Logout tab is located on the upper right-hand corner of the screen. Click this tab to end the management
session. After you click the Logout tab, a screen will appear and ask you to confirm that you want to end the
session. If you end the session, you will need to re-enter your User Name and Password to log in and then
manage the Router.

Figure 6-120: Support

Figure 6-121: Logout

Chapter 6: Setting up and Configuring the Router
Support Tab

81

10/100 16-Port VPN Router

Appendix A: Troubleshooting

This appendix provides solutions to problems that may occur during the installation and operation of the Router.
Read the descriptions below to help solve your problems. If you can't find an answer here, check the Linksys
website at www.linksys.com.

Common Problems and Solutions

1. I’m having trouble getting my VPN tunnel to connect. What should I do?

Perform the following steps until the VPN tunnel connects:
A. Double-check all of the settings. Make sure the IPSec Setup settings of the 10/100 16-Port VPN Router

match the IPSec Setup settings of the remote VPN router or client, including the Preshared Key and
Phase1 and Phase2 SA Life Time settings, which are used in the IKE with Preshared Key mode.

B. Click the Log tab of the Router’s Web-based Utility. Click the View System Log button. From the drop-

down menu, select the VPN Log. The error message will indicate which setting is incorrect and needs to
be changed on either the 10/100 16-Port VPN Router or the remote VPN router or client.

C. Make sure the IP address of the Remote Secure Gateway or Client is correct. Click the System

Management tab of the Router’s Web-based Utility. Select the Ping radio button. Enter the IP address of
the Remote Secure Gateway or Client in the Ping host or IP address field. Then click the Go button.

2. My VPN tunnel connects properly, but it frequently dro ps the connection. What should I do?

Through the Router’s Web-based Utility, access the settings for your VPN tunnel. In the IPSec Setup section
with IKE with Preshared Key mode selected, increase the Phase2 SA Life Time setting to 28800 seconds,
which is eight hours. Then increase the Phase2 SA Life Time setting to 28800 seconds on the remote VPN
router or client. If you need to check the status of your VPN tunnel, view the VPN Summary screen of the
Router’s Web-based Utility.

3. I’m trying to access the Router’s Web-based Utility, but I do not see the login screen. Instead, I see a
screen saying, “404 Forbidden.”

If you are using Windows Explorer, perform the following steps until you see the Web-based Utility’s login
screen (Netscape Navigator will require similar steps):

1. Click File. Make sure Work Offline is NOT checked.

2. Press CTRL + F5. This is a hard refresh, which will force Windows Explorer to load new webpages,
not cached ones.

3. Click Tools. Click Internet Options. Click the Security tab. Clic k the Default level button. Make sure
the security level is Medium or lower. Then click the OK button.

Appendix A: Troubleshooting
Common Problems and Solutions

82

10/100 16-Port VPN Router

4. I need to set a static IP address on a PC.

The Router, by default, assigns an IP address range of 192.168.1.100 to 192.168.1.149 using the DHCP server
on the Router. To set a static IP address, you can only use the ranges 192.168.1.2 to 192.168.1.99 and

192.168.1.150 to 192.168.1.254. Each PC or network device that uses TCP/IP must have a unique address to
identify itself in a network. If the IP address is not unique to a network, Windows will generate an IP conflict
error message. You can assign a static IP address to a PC by performing the following steps:

For Windows 98 and Millennium:

A. Click Start, Setting, and Control Panel. Double-click Network.
B. In The following network components are installed box, select the TCP/IP-> associated with your

Ethernet adapter. If you only have one Ethernet adapter installed, you will only see one TCP/IP line with no
association to an Ethernet adapter. Highlight it and click the Properties button.

C. In the TCP/IP properties window, select the IP address tab, and select Specify an IP address. Enter a

unique IP address that is not used by any other computer on the network connected to the Router. You
can only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to

192.168.1.254. Make sure that each IP address is unique for each PC or network device.

D. Click the Gateway tab, and in the New Gateway prompt, enter 192.168.1.1, which is the default IP

address of the Router. Click the Add button to accept the entry.

E. Click the DNS tab, and make sure the DNS Enabled option is selected. Enter the Host and Domain names

(e.g., John for Host and home for Domain). Enter the DNS entry provided by your ISP. If your ISP has not
provided the DNS IP address, contact your ISP to get that information or go to its website for the
information.

F. Click the OK button in the TCP/IP properties window, and click Close or the OK button for the Network

window.

G. Restart the computer when asked.

For Windows 2000:

A. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.
B. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and

select the Properties option.

C. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP), and

click the Properties button. Select Use the following IP address option.

D. Enter a unique IP address that is not used by any other computer on the network connected to the Router .

You can only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to

192.168.1.254.
E. Enter the Subnet Mask, 255.255.255.0.
F. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).

Appendix A: Troubleshooting
Common Problems and Solutions

83

10/100 16-Port VPN Router

G. Toward the bottom of the window, select Use the following DNS server addresses, and enter the

Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its
website to find the information.

H. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the

Local Area Connection Properties window.

I. Restart the computer if asked.

For Windows XP:

The following instructions assume you are running Windows XP with the default interface. If you are using the
Classic interface (where the icons and menus look like previous Windows versions), please follow the
instructions for Windows 2000.

A. Click Start and Control Panel.
B. Click the Network and Internet Connections icon and then the Network Connections icon.
C. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and

select the Properties option.

D. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP). Click the

Properties button.

E. Enter a unique IP address that is not used by any other computer on the network connected to the Router .

You can only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to

192.168.1.254.
F. Enter the Subnet Mask, 255.255.255.0.
G. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).
H. Toward the bottom of the window, select Use the following DNS server addresses, and enter the

Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its
website to find the information.

I. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Click the OK button in the Local

Area Connection Properties window.

5. I want to test my Internet connection.

A. Check your TCP/IP settings.

For Windows 98 and Millennium:

Refer to Windows Help and “Chapter 5: Configuring the PCs” for details. Make sure Obtain IP address
automatically is selected in the settings.

Appendix A: Troubleshooting
Common Problems and Solutions

84

10/100 16-Port VPN Router

For Windows 2000:

1. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.

2. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using,
and select the Properties option.

3. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP),
and click the Properties button. Make sure that Obtain an IP address automatically and Obtain
DNS server address automatically are selected.

4. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the
Local Area Connection Properties window.

5. Restart the computer if asked.

6. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the
Local Area Connection Properties window.

7. Restart the computer if asked.

For Windows XP:

The following instructions assume you are running Windows XP with the default interface. If you are using the
Classic interface (where the icons and menus look like previous Windows versions), please follow the
instructions for Windows 2000.

1. Click Start and Control Panel.

2. Click the Network and Internet Connections icon and then the Network Connections icon.

3. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using,
and select the Properties option.

4. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP), and click
the Properties button. Make sure that Obtain an IP address automatically and Obtain DNS server
address automatically are selected.

B. Open a command prompt.

• For Windows 98 and Millennium, click Start and Run. In the Open field, type command. Press the
Enter key or click the OK button.

• For Windows 2000 and XP, click Start and Run. In the Open field, type cmd. Press the Enter key or
click the OK button.

C. In the command prompt, type ping 192.168.1.1 and press the Enter key.

• If you get a reply, the computer is communicating with the Router.

• If you do NOT get a reply, check the cable, and make sure Obtain an IP address automatically is
selected in the TCP/IP settings for your Ethernet adapter.

Appendix A: Troubleshooting
Common Problems and Solutions

85

10/100 16-Port VPN Router

D. In the command prompt, type ping followed by your Internet IP address and press the Enter key. The

Internet IP Address can be found in the web interface of the Router. For example, if your Internet IP
address is 1.2.3.4, you would enter ping 1.2.3.4 and press the Enter key.

• If you get a reply, the computer is connected to the Router.

• If you do NOT get a reply, try the ping command from a different computer to verify that your original
computer is not the cause of the problem.

E. In the command prompt, type ping www.linksys.com and press the Enter key.

• If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the
ping command from a different computer to verify that your original computer is not the cause of the
problem.

• If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a
different computer to verify that your original computer is not the cause of the problem.

6. I am not getting an IP address on the Internet with my Internet connection.

A. Refer to “Problem #2, I want to test my Internet connection” to verify that you have connectivity.
B. If you need to register the MAC address of your Ethernet adapter with your ISP, please see “Appendix C:

Finding the MAC Address and IP Address for Y our Ethernet Adapter.” If you need to clone the MAC address
of your Ethernet adapter onto the Router, see the MAC Address Clone section of “Chapter 6: Setting up
and Configuring the Router” for details.

C. Make sure you are using the right Internet settings. Contact your ISP to see if your Internet connection

type is DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers). Please refer to the Setup
section of “Chapter 6: Setting up and Configuring the Router” for details on Internet Connection Type

settings.
D. Make sure you use the right cable. Check to see if the Internet LED is solidly lit.
E. Make sure the cable connecting from your cable or DSL modem is connected to the Router’s Internet port.

Verify that the Status page of the Router’s Web-based Utility shows a valid IP address from your ISP.
F. Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router,

cable/DSL modem, and computer. Check the Status tab of the Router’s Web-based Utility to see if you get

an IP address.

7. I am not able to access the Router’s Web-based Utility Setup page.

A. Refer to “Problem #2, I want to test my Internet connection” to verify that your computer is properly

connected to the Router.
B. Refer to “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter” to verify that

your computer has an IP Address, Subnet Mask, Gateway, and DNS.
C. Set a static IP address on your system; refer to “Problem #1: I need to set a static IP address.”
D. Refer to “Problem #10: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE

users).”

Appendix A: Troubleshooting
Common Problems and Solutions

86

10/100 16-Port VPN Router

8. I am using VPN client software on my computer, and I can’t get my Virtual Private Network (VPN)
tunnel to pass through the Router.

Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router, and go to
the VPN => VPN Pass Through tab. Make sure you have IPsec, PPTP, and/or L2TP passthrough enabled.

VPNs that use IPSec with ESP (Encapsulation Security Payload known as protocol 50) authentication will work
fine. At least one IPSec session will work through the Router; however, simultaneous IPSec sessions may be
possible, depending on the specifics of your VPNs.

VPNs that use IPSec and AH (Authentication Header known as protocol 51) are incompatible with the Router.
AH has limitations due to occasional incompatibility with the NAT standard.

Change the IP address for the Router to another subnet to avoid a conflict between the VPN IP address and
your local IP address. For example, if your VPN server assigns an IP address 192.168.1.X (X is a number from
1 to 254) and your local LAN IP address is 192.168.1.X (X is the same number used in the VPN IP address), the
Router will have difficulties routing information to the right location. If you change the Router’s IP address to

192.168.2.1, that should solve the problem. Change the Router’s IP address through the Setup tab of the Web­based Utility. If you assigned a static IP address to any computer or network device on the network, you need
to change its IP address accordingly to 192.168.2.Y (Y being any number from 2 to 254). Note that each IP
address must be unique within the network.

Your VPN may require port 500/UDP packets to be passed to the computer that is connecting to the IPSec
server. Refer to “Problem #7, I need to set up online game hosting or use other Internet applications” for
details.

Check the Linksys website at www.linksys.com for more information.

9. I need to set up a server behind my Router.

To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using.
For example, port 80 (HTTP) is used for web. Port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and
port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the
documentation provided with the server you installed. Follow these steps to set up port forwarding through
the Router’s Web-based Utility.

A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go

to the Setup => Forwarding tab.

B. Select the Service from the pull-down menu. If the Service you need is not listed in the menu, click the

Service Management button to add the new Service Name, and enter the Protocol and Port Range. Click
the Add to List button. Then click the Save Setting button. Click the Exit button.

Appendix A: Troubleshooting
Common Problems and Solutions

87

10/100 16-Port VPN Router

C. Enter the IP Address of the server that you want the Internet users to access. For example, if the web

server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check
“Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an
IP address. Then check the Enable checkbox for the entry. Consider the examples below:

Application Start and End Protocol IP Address Enable

Web server 80 to 80 Both 192.168.1.100 X
FTP server 21 to 21 TCP 192.168.1.101 X
SMTP (outgoing) 25 to 25 Both 192.168.1.102 X
POP3 (incoming) 110 to 110 Both 192.168.1.102 X

D. Click the Add to List button, and configure as many entries as you like.
When you have completed the configuration, click the Save Settings button.

10.I need to set up online game hosting or use other Internet applications.

If you want to play online games or use Internet applications, most will work without doing any port
forwarding or DMZ hosting. There may be cases when you want to host an online game or Internet
application. This would require you to set up the Router to deliver incoming packets or data to a specific
computer . This also applies to the Internet applications you are using. The best way to get the information on
what port services to use is to go to the website of the online game or application you want to use. Follow
these steps to set up online game hosting or use a certain Internet application:

A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go

to the Setup => Forwarding tab.

B. Select the Service from the pull-down menu. If the Service you need is not listed in the menu, click the

Service Management button to add the new Service Name, and enter the Protocol and Port Range. For
example, if you have a web server, you would enter the range 80 to 80. Click the Add to List button. Then
click the Save Setting button. Click the Exit button.

C. Enter the IP Address of the server that you want the Internet users to access. For example, if the web

server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check

Appendix A: Troubleshooting
Common Problems and Solutions

88

10/100 16-Port VPN Router

“Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an
IP address. Then check the Enable checkbox for the entry. Consider the examples below:

Application Start and End Protocol IP Address Enabled

UT 7777 to 27900 Both 192.168.1.100 X
Halflife 27015 to 27015 Both 192.168.1.105 X
PC Anywhere 5631 to 5631 UDP 192.168.1.102 X
VPN IPSEC 500 to 500 UDP 192.168.1.100 X

D. Click the Add to List button, and configure as many entries as you like.
When you have completed the configuration, click the Save Settings button.

11.I can’t get the Internet game, server, or application to work.

If you are having difficulties getting any Internet game, server, or application to function properly, consider
exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an
application requires too many ports or when you are not sure which port services to use. Make sure you
disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority
over DMZ hosting. (In other words, data that enters the Router will be checked first by the forwarding
settings. If the port number that the data enters from does not have port forwarding, then the Router will send
the data to whichever PC or network device you set for DMZ hosting.) Follow these steps to set DMZ hosting:

A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go

to the Setup => Forwarding tab.

B. Disable or remove the entries you have entered for forwarding. To delete an entry, select it and then click

the Delete selected application button. Keep this information in case you want to use it at a later time.
C. Click the DMZ Host tab.
D. Enter the Ethernet adapter’s IP address of the computer you want exposed to the Internet. This will

bypass the NAT security for that computer. Please refer to “Appendix C: Finding the MAC Address and IP

Address for Your Ethernet Adapter” for details on getting an IP address.
Once completed with the configuration, click the Save Settings button.

12.I forgot my password, or the password prompt always appears when saving settings to the Router.

Reset the Router to factory defaults by pressing the Reset button for ten seconds and then releasing it. If you
are still getting prompted for a password when saving settings, then perform the following steps:

Appendix A: Troubleshooting
Common Problems and Solutions

89