Cisco Linksys BEFVP41 v2 User Manual
A Division of Cisco Systems, Inc.
®
Model No.
EtherFast
Cable/DSL VPN Router
with 4-Port 10/100 Switch
WIRED
BEFVP41 v2
®
User Guide
EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
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 © 2003 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”.
BEFVP41_V2-UG-31016NC KL
EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Table of Contents
Chapter 1: Introduction 1
Welcome 1
What’s in this Guide? 2
Chapter 2: Your Virtual Private Network (VPN) 4
Why do I need a VPN? 4
What is a Virtual Private Network? 5
Computer (using VPN client software that supports IPSec) to VPN Router 6
Chapter 3: Getting to Know the Router 7
The Back Panel 7
The Front Panel 8
Chapter 4: Connecting the Router 9
Overview 9
Connection Instructions 10
Chapter 5: Configuring the Router 11
Obtain an IP Automatically - DHCP 13
Static IP 13
PPPoE 14
RAS 14
PPTP 14
Heart Beat Signal 15
Chapter 6: Using The Router’s Web-based Utility 16
Overview 16
Navigating the Utility 16
Accessing the Utility 18
The Setup tab 18
The Security tab 28
The Access Restrictions tab 33
The Applications & Gaming tab 34
Port Triggering 35
UPnP Forwarding 36
DMZ 38
The Administration tab 39
EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
The Status tab 43
Appendix A: Troubleshooting 45
Common Problems and Solutions 45
Frequently Asked Questions 54
Appendix B: Upgrading Firmware 59
Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter 60
Windows 98 or Me Instructions 60
Windows 2000 or XP Instructions 60
For the Router’s Web-based Utility 61
Appendix D: Windows Help 62
Appendix E: Maximizing VPN Security 63
Appendix F: Creating a VPN Tunnel between two VPN Routers 65
Appendix G: SNMP Functions 66
Appendix H: Glossary 67
Appendix I: Specifications 71
Appendix J: Warranty Information 73
Appendix K: Regulatory Information 74
Appendix L: Contact Information 77
EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
List of Figures
Figure 2-1: VPN Router to VPN Router 6
Figure 2-2: Computer to VPN Router 6
Figure 3-1: Back Panel 7
Figure 3-2: Front Panel 8
Figure 4-1: Example of a Typical Network 9
Figure 4-2: Connect a PC 10
Figure 4-3: Connect the Internet 10
Figure 4-4: Connect the Power 10
Figure 5-1: Router’s IP Address for Basic Setup 11
Figure 5-2: Router Login screen 11
Figure 5-3: Basic DHCP Setup 13
Figure 5-4: Basic Static IP Setup 13
Figure 5-5: Basic PPPoE Setup 14
Figure 5-6: The Registration URL 15
Figure 6-1: The Router’s IP Address 18
Figure 6-2: Router Login 18
Figure 6-3: Setup tab - Basic Setup 18
Figure 6-4: DHCP Connection type 19
Figure 6-5: Static IP Connection type 19
Figure 6-6: PPPoE Connection type 20
Figure 6-7: RAS Connection type 21
Figure 6-8: PPTP Connection type 22
Figure 6-9: Heart Beat Signal Connection type 23
Figure 6-10: Network Setup 24
Figure 6-11: Setup tab - DDNS 25
Figure 6-12: Setup tab - MAC Address Clone 25
Figure 6-13: Setup tab - Advanced Routing 26
Figure 6-14: The Routing Table 27
EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Figure 6-15: Security tab -Firewall 28
Figure 6-16: Security tab - VPN 29
Figure 6-17: Local and Remote Secure Group 29
Figure 6-18: Remote Security Gateway 30
Figure 6-19: Key Management 30
Figure 6-20: Advanced VPN Tunnel Setup 32
Figure 6-21: Access Restrictions tab 33
Figure 6-22: Applications & Gaming tab - Port Range Forwarding 34
Figure 6-23: Applications & Gaming tab - Port Triggering 35
Figure 6-24: Applications & Gaming tab - UPnP Forwarding 36
Figure 6-25: Applications & Gaming tab - DMZ 38
Figure 6-26: Administration tab - Management 39
Figure 6-27: Administration tab - Log 40
Figure 6-28: Administration tab - Diagnostics 41
Figure 6-29: Administration tab - Factory Defaults 42
Figure 6-30: Administration tab - Firmware Upgrade 42
Figure 6-31: Status tab - Gateway 43
Figure 6-32: Status tab - Local Network 44
Figure 6-33: DHCP Active IP Table 44
Figure B-1: Upgrade Firmware 59
Figure C-1: IP Configuration Screen 60
Figure C-2: MAC Address/Adapter Address 60
Figure C-3: MAC Address/Physical Address 61
Figure C-4: MAC Address Filter 61
Figure C-5: MAC Address Clone 61
Figure F-1: The Web-based Utility’s VPN screen 65
EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Chapter 1: Introduction
Welcome
Thank you for choosing the EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch. This Router provides
your network with a high-security way to share a high-speed Internet connection as well as resources, including
files and printers.
How is this done? Inside this Router you have the Internet-access sharing ability of a standard Linksys Router,
along with the network expandibility of a 4-Port 10/100 Switch, and the network security functions of VPN.
But what does all of this mean?
At the core of this Router, is a standard, Linksys Router, providing you the ability to share your broadband,
Internet access within your network. This also comes with the protection of a firewall and the easy setup and
configuration you’ve come to expect from a Linksys Router. Add to that the network expandibility of a 4-port 10/
100 Switch. The four ports in the back of the Router are all auto-detecting, meaning that the Router can tell if
you’re connecting a straight-through or cross-over cable, making this easier to use than ever. Finally, adding VPN
network security to the Router allows you to secure data, not just behind the Router, but as it is transmitted over
the Internet. VPNs, or Virtual Private Networks, create virtual tunnels that connect your PC to another across the
Internet, keeping the data secure as it passes from one to another.
In this User Guide, you’ll find all you need to setup, configure, and use the Router, including appendices
describing VPNs. Welcome to secure, broadband networking.
network: a series of computers or devices
connected for the purpose of data sharing,
storage, and/or transmission between users
switch: a data switch that connects computing
devices to host computers, allowing a large number
of devices to share a limited number of ports
broadband: an always-on, fast Internet connection
firewall: a set of related programs located at a
network gateway server that protects the resources
of a network from users from other networks
Chapter 1: Introduction
Welcome
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
What’s in this Guide?
This user guide covers everything you’ll need to know about the Router. In addition to giving directions in the
Chapters about how to set it up and use it, serveral Appendices are provided for further information.
• Chapter 1: Introduction
This chapter describes the Router’s applications and this User Guide.
• Chapter 2: Networking Basics
This chapter briefly explains how a network functions.
• Chapter 3: Getting to Know the Router
This chapter provides a quick guide to the Router’s LED display on the front and ports on the back.
• Chapter 4: Connecting the Router
This chapter instructs you on how to connect the DSL modem to the Router and connect the PC(s) to the
Router.
dsl: an always-on broadband
connection over traditional phone lines
• Chapter 5: Configuring the Router
This chapter explains how to configure the Router using your web browser and the Router’s Web-based
Utility. You will configure the Router using the settings provided by your ISP.
• Chapter 6: Using the Router’s Web-based Utility
This chapter describes the Web-based Utility and the features available, so you can use and alter advanced
configuration settings.
• Appendix A: Troubleshooting
This appendix describes some possible problems and solutions, as well as frequently asked questions,
regarding installation and use of the Router.
• Appendix B: Upgrading Firmware
This appendix explains how you can upgrade the Router’s firmware.
• Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter
This appendix instructs you on how to find the MAC address or Ethernet address of your PC’s Ethernet
network adapter.
• Appendix D: 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?
isp(Internet Service Provider): a company
that provides access to the Internet
firmware: theprogramming code that runs a networking device
ethernet: an IEEE standard network protocol that
specifies how data is placed on and retrieved from
a common transmission medium
mac (Media Access Control) address: the unique address
that a manufacturer assigns to each networking device
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
• Appendix E: Maximizing VPN Security
This appendix tells you how to get the most out of the VPN Router, using VPN tunnels.
• Appendix F: Configuring IPSec between a Windows 2000 or XP PC and the VPN Router
So, how do you set your PCs up for VPN tunnels? This appendix tells you how.
• Appendix G: SNMP Functions
This appendix tells you about the Simple Network Management Protocol.
• Appendix H: Glossary
This appendix gives a brief glossary of terms frequently used in networking.
• Appendix I: Specifications
This appendix provides the technical specifications for the Router.
• Appendix J: Warranty Information
This appendix supplies the warranty information for the Router.
• Appendix K: Regulatory Information
This appendix supplies the regulatory information regarding the Router.
• Appendix L: Contact Information
This appendix provides contact information for a variety of Linksys resources, including Technical Support.
IPSec (Internet Protocol Security): A VPN protocol used to
implement secure exchange of packets at the IP layer
snmp (Simple Network Management Protocol): a widely
used network monitoring and control protocol
Chapter 1: Introduction
What’s in this Guide?
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Chapter 2: Your Virtual Private Network (VPN)
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 emails 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. You may already have
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 email 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.
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.
vpn (Virtual Private Network): a security
measure to protect data as it leaves one
network and goes to another over the Internet
packet: a unit of data sent over a network
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
Chapter 2: Your Virtual Private Network (VPN)
Why do I need a VPN?
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
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 Virtual Private Network?
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:
•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 (Windows 2000 and XP) allows the VPN Router to create a VPN
tunnel using IPSec (refer to “Appendix F: Configuring IPSec between a Windows 2000 or XP PC and the VPN
Router”). Other versions of Microsoft operating systems require additional, third-party VPN client software
applications that support IPSec to be installed.
Chapter 2: Your Virtual Private Network (VPN)
What is a Virtual Private Network?
encryption: encoding data transmitted in a network
IP (Internet Protocol): a protocol used to send data
over a network
software: instructions for the computer
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
VPN Router to VPN Router
An example of a VPN Router-to-VPN Router VPN would be as follows. 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 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 he were physically connected.
IMPORTANT: You must have at least one VPN Router on
one end of the VPN tunnel. At the other end of the VPN
tunnel, you must have a second VPN Router or a computer
with VPN client software that supports IPSec.
Figure 2-1: VPN Router to VPN Router
Computer (using VPN client software that supports IPSec) to VPN Router
The following is an example of a computer-to-VPN Router VPN. 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 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 she were physically connected.
For additional information and instructions about creating your own VPN, please visit Linksys’s website at
www.linksys.com or refer to “Appendix F: Configuring IPSec between a Windows 2000 or XP PC and the VPN
Router.”
Chapter 2: Your Virtual Private Network (VPN)
Computer (using VPN client software that supports IPSec) to VPN Router
Figure 2-2: Computer to VPN Router
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Chapter 3: Getting to Know the Router
The Back Panel
The Router’s ports and the Reset button are located on the back panel of the Router.
Figure 3-1: Back Panel
Internet This Internet port connects to your cable or DSL modem.
1-4 These four Ethernet ports connect to network devices, such as PCs, print servers, or
additional switches.
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 for just a
second with a paper clip or a pencil tip. This is similar to pressing the Reset button on your PC
to reboot it.
If you are experiencing extreme problems with the Router and have tried all other
troubleshooting measures, press and hold in the Reset button for 30 seconds. This will restore
the factory defaults and clear all of the Router’s settings, such as port forwarding or a new
password.
Power The Power port is where you will connect the power adapter.
Chapter 3: Getting to Know the Router
The Back Panel
port: the connection point on a computer or networking
device used for plugging in cables or adapters
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
The Front Panel
The Router’s LEDs, which inform you about network activities, are located on the front panel.
Figure 3-2: Front Panel
Power Green. The Power LED lights up when the Router is powered on. If the LED is flashing, the
Router is running a diagnostic test.
Ethernet Green. The Ethernet LED serves two purposes. If the LED is continuously lit, the Router is
connected to a device through the corresponding port (1, 2, 3, or 4). If the LED is flashing, the
Router is actively sending or receiving data over that port.
Internet Green. The Internet LED lights up when the Router is connected to your cable or DSL modem.
Proceed to “Chapter 4: Connecting the Router.”
Chapter 3: Getting to Know the Router
The Front Panel
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Chapter 4: Connecting the Router
Overview
To set up your network, do the following:
• Connect the Router to one of your PCs.
• If necessary, configure your PCs to obtain an IP address automatically from the Router. (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.)
• Configure the Router with the setting(s) provided by your Internet Service Provider (ISP).
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.
Notebook with
Ethernet Adapter
Cable or DSL
Modem
Cable/DSL Router
IP Address: the address used to identify a
computer or device on a network
adapter: a device that adds network
functionality to your PC
Chapter 4: Connecting the Router
Overview
PC with Ethernet Adapter
Figure 4-1: Example of a Typical Network
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
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 back of the Router.
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 the Router’s Internet port.
4. Power on the cable or DSL modem.
5. Connect the included power adapter to the Router’s Power port, and then plug the power adapter into an
electrical outlet.
The Power LED on the front panel will light up as soon as the power adapter is connected properly.
Proceed to “Chapter 5: Configuring the Router.”
Figure 4-2: Connect a PC
Figure 4-3: Connect the Internet
Figure 4-4: Connect the Power
Chapter 4: Connecting the Router
Connection Instructions
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Chapter 5: Configuring the Router
Note: The directions included in this Chapter are meant for quick configuration of the Router
and do not include all you need to know to use all of the Router’s functions. Complete
directions on all of the Router’s functions, configured through the Web-based Utility, can be
found in Chapter 6: Using the Router’s Web-based Utility.
Now that the Router is connected to your network, this chapter will walk you through a quick configuration.
Note: If the TCP/IP protocol is not configured on your PC, go to “Appendix D: Windows Help”
for instructions on how Windows can help you configure this protocol on your PC.
1. Open your web browser and type http://192.168.1.1 in the browser’s Address box. This number is the
Router’s default IP address. Press the Enter key.
2. A User Name and Password prompt will appear. Leave the User Name field empty, and type admin (the
default password) in the Password field. Click the OK button. If the screen does not appear, make sure your
network adapter is working properly, the network cable is connected, and the Router’s LED is lit up for the
port where you’re connected.
browser: an application program that provides a way to look at
and interact with all the information on the World Wide Web
Figure 5-1: Router’s IP Address for Basic Setup
Figure 5-2: Router Login screen
Chapter 5: Configuring the Router
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
3. The Router configuration screen will appear with the Setup tab selected. Based on the setup instructions from
your ISP, you may need to provide the following information.
Host Name and Domain Name: These fields allow you to provide a host name and domain name for the
Router. These fields are usually left blank. If requested by your ISP (usually cable ISPs), complete these two
fields.
domain: a specific name for a network of computers
Device IP Address and Subnet Mask: The values for the Router’s IP Address and Subnet Mask are shown
on the Setup screen. The default value is 192.168.1.1 for the IP Address and 255.255.255.0 for the Subnet
Mask. Leave these settings alone.
4. The Router supports six connection types: obtain an IP automatically (DHCP), Static IP, PPPoE, RAS, PPTP, and
Heart Beat Signal. These types are listed in the drop-down menu for the Connection Type setting. Each
Setup screen and available features will differ depending on what kind of connection type you select. Proceed
to the instructions for the connection type you are using. When you are finished with the Setup tab, proceed
to step 5.
IMPORTANT:If you have previously enabled an Internet Sharing Proxy Service on any of your
PCs, you must disable it now.
• If you are running Netscape Navigator, click Edit >> Preference >> Advanced >>
Proxies >> Direct Connection to the Internet.
• If you are running Internet Explorer v5 or better, click Start >> Settings >> Control
Panel >> Internet Options >> Connections >> LAN Settings. Remove the checks
from all three boxes. Click OK to continue.
static ip address: a fixed address assigned to a
computer or device that is connected to a network
PPPoE (Point to Point Protocol over Ethernet): a type of
broadband connection that provides authentication
(username and password) in addition to data transport
DHCP (Dynamic Host Configuration Protocol): a
networking protocol that allows administrators to
assign temporary IP addresses to network computers by
"leasing" an IP address to a user for a limited amount of
time, instead of assigning permanent IP addresses.
Chapter 5: Configuring the Router
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Obtain an IP Automatically - DHCP
If your ISP says that you are connecting through DHCP or a dynamic IP address from your ISP, perform these
steps:
A. Select Obtain an IP automatically as the Connection Type.
B. Click the Save Settings button to save the setting, or click the Cancel Changes button to clear the setting
and start over. When you are finished, then proceed to step 5.
Static IP
Figure 5-3: Basic DHCP Setup
If your ISP says that you are connecting through a static or fixed IP address from your ISP, perform these steps:
A. Select Static IP as the Connection Type.
B. Enter the IP Address.
C. Enter the Subnet Mask.
D. Enter the Gateway Address.
E. Enter the DNS in the 1, 2, and/or 3 fields. You need to enter at least one DNS address.
F. Click the Save Settings button to save the settings, or click the Cancel Changes button to clear the settings
and start over. When you are finished, then proceed to step 5.
Chapter 5: Configuring the Router
Obtain an IP Automatically - DHCP
Figure 5-4: Basic Static IP Setup
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
PPPoE
If your DSL provider says that you are connecting through PPPoE or if you normally enter a user name and
password to access the Internet, perform these steps:
A. Select PPPoE as the Connection Type.
B. Enter the User Name.
C. Enter the Password.
D. Enter the Service Name, if required.
E. Click the Save Settings button to save the settings, or click the Cancel Changes button to clear the settings
and start over.
F. When you are finished, click the Status tab, and then click the Connect button to start the connection.
Proceed to step 5.
RAS
Figure 5-5: Basic PPPoE Setup
RAS is a service used in Singapore only. If you are using a RAS connection, check with your ISP for the necessary
setup information.
When you are finished with the Setup tab, proceed to step 5.
PPTP
PPTP is a service used in Europe only. If you are using a PPTP connection, check with your ISP for the necessary
setup information.
When you are finished with the Setup tab, proceed to step 5.
Chapter 5: Configuring the Router
PPPoE
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Heart Beat Signal
Heart Beat Signal is a service used in Australia only. If you are using a Heart Beat Signal connection, check with
your ISP for the necessary setup information.
A. When finished making your changes on this tab, click the Save Settings button to save this change, or click
the Cancel Changes button to undo your change. For further help on this tab, click the Help button.
B. Click the Status tab, and then click the Connect button. When you are finished, proceed to step 5.
5. If you haven’t already done so, click the Apply button and then the Continue button to save your Setup
settings. Close the web browser.
6. Reset the power on your cable or DSL modem.
7. Restart your computers so that they can obtain the Router’s new settings.
If you need advanced setting information, please refer to “Chapter 6: Using the Router’s Web-based Utility” or the
Linksys support website at support.linksys.com.
Congratulations! You’ve successfully configured the Router. Test the setup by opening your web browser from
any computer and entering www.linksys.com/registration.
If you are unable to reach our website, you may want to review what you did in this section or refer to “Appendix
A: Troubleshooting.”
Proceed to “Chapter 6: Using the Router’s Web-based Utility”
for more details and advanced settings information.
Chapter 5: Configuring the Router
Heart Beat Signal
Figure 5-6: The Registration URL
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Chapter 6: Using The Router’s Web-based Utility
Overview
For your convenience, use the Router’s Web-based Utility to administer it. This chapter will explain all of the
functions in this Utility. The Utility can be accessed via Microsoft Internet Explorer or Netscape Navigator through
use of a computer connected with an Ethernet cable to the Router.
For a basic network setup, most users only have to use the following screens of the Utility:
• Basic Setup
On the Basic Setup screen, enter the settings provided by your ISP.
• Management
Click the Administration tab and then select the Management screen. The Router’s default password is
admin. To secure the Router, change the Password from its default.
Navigating the Utility
There are six main tabs: Setup, Security, Access Restrictions, Applications & Gaming, Administration, and Status.
Additional screens will be available from the main tabs.
Setup
• Basic Setup. Enter the Internet connection and network settings on this screen.
• DDNS. To enable the Router’s Dynamic Domain Name System (DDNS) feature, complete the fields on this
screen.
• MAC Address Clone. If you need to clone a MAC address onto the Router, use this screen.
• Advanced Routing. On this screen, you can alter Network Address Translation (NAT), Dynamic Routing, and
Static Routing configurations.
Security
• Firewall. This screen allows you to enable to disable the firewall, block Internet requests, and enable a variety
of Internet filters.
Chapter 6: Using The Router’s Web-based Utility
Overview
nat (Network Address Translation): NAT technology
translates IP addresses of a local area network to a
different IP address for the Internet.
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
• VPN. To enable and setup VPN Passthrough and configure up to 50 VPN tunnels, use this screen.
Access Restrictions
• Internet Access. From this screen, you will be able to manage Internet access, blocking websites, from your
network.
Applications & Gaming
• Port Range Forwarding. You can set up public services or other specialized Internet applications on your
network from this screen.
• Port Triggering. Set up triggered ranges and forwarded ranges for Internet applications from this screen.
• UPnP Forwarding. Use this screen to alter UPnP forwarding settings.
• DMZ. To allow one local user to be exposed to the Internet for use of special-purpose services, use this
screen.
Administration
• Management. On this screen, alter the Router’s password, access privileges, and UPnP settings.
• Log. You can view or save, even email, activity logs from this screen.
• Diagnostics. From this screen, you can test network performance and connections.
• Factory Defaults. If you want to restore the Router’s factory defaults, then use this screen.
• Firmware Upgrade. From this screen, you can upgrade the Router’s firmware.
Status
• Gateway. This screen provides status information about the Router and your Internet connection.
• Local Network. This provides status information about the local network.
Chapter 6: Using The Router’s Web-based Utility
Navigating the Utility
upgrade: to replace existing software or
firmware with a newer version
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Accessing the 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. Press the Enter key.
A screen will appear asking you for your User name and Password. Leave the User name field blank, and enter
admin in the Password field. Then click the OK button.
When finished making your changes on a screen, click the Save Settings button to save the changes, or click the
Cancel Changes button to undo your changes.
Figure 6-1: The Router’s IP Address
Figure 6-2: Router Login
The Setup tab
The Setup tab is the first tab you see when you access the Web-based Utility. This tab is divided into four
screens: Basic Setup, DDNS, MAC Address Clone, and Advanced Routing. Each of these screens are described in
detail below.
Chapter 6: Using The Router’s Web-based Utility
Accessing the Utility
Figure 6-3: Setup tab - Basic Setup
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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Basic Setup
Internet Setup
This section allows you to select the type of Internet setup and connection your network employs. The Router
supports six connection types: Obtain an IP automatically (DHCP), Static IP, PPPoE, RAS, PPTP, and Heart Beat
Signal. Each Basic Setup screen and available features will differ depending on what kind of connection type you
select.
Connection Type: Obtain an IP automatically - DHCP
By default, the Router’s Internet Connection Type is set to Obtain an IP automatically and it should be used
only if your ISP supports DHCP.
Host Name/Domain Name. Enter a Host Name and Domain Name if required by your ISP.
MTU. The MTU option specifies the largest packet size permitted for network transmission. Select Manual if
you do not want the Router to regulate this packet size (otherwise, leave it set at Automatic) and enter the
value desired. You should leave this value in the 1200 to 1500 range. Most DSL users should use the default
of 1400.
Connection Type: Static IP
Note: For DSL users, if you need to enable PPPoE support, remember to remove any
PPPoE applications that are installed on your PCs.
If you are required to use a permanent IP address, then select Static IP. This information can be obtained
from your ISP.
IP Address. This is the IP address that the Router has, when seen from the Internet. Your ISP will provide you
with the IP Address you need to specify here.
Subnet Mask. This is the Router’s Subnet Mask, as seen by external users on the Internet (including your
ISP). Your ISP will provide you with the Subnet Mask.
Default Gateway. Your ISP will provide you with the Default Gateway Address.
Chapter 6: Using The Router’s Web-based Utility
The Setup tab
Figure 6-4: DHCP Connection type
Figure 6-5: Static IP Connection type
subnet mask: an address code that
determines the size of the network
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