Linksys WAG300N User Manual

2,4

GHz

Wireless-N

ADSL2+ Gateway

User Guide

WIRELESS

Model No.

WAG300N (EU/LA)

Wireless-N ADSL2+ Gateway

Copyright and Trademarks

Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco
Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2006 Cisco Systems, Inc. All
rights reserved. Other brands and product names are trademarks or registered trademarks of their respective
holders.

How to Use this Guide

Your Guide to the Wireless-N ADSL2+ Gateway has been designed to make understanding networking with the
Gateway easier than ever. Look for the following items when reading this User Guide:

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

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

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

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

WAG300N-EU-UG-WPA-60524NC BW

Figure 0-1: Sample Figure Description

Wireless-N ADSL2+ Gateway

Table of Contents

Chapter 1: Introduction 1

Welcome 1
What’s in this User Guide? 2

Chapter 2: Planning Your Network 4

The Gateway’s Functions 4
IP Addresses 4

Chapter 3: Getting to Know the Wireless-N ADSL2+ Gateway 6

Ports and Reset Button on Side Panel 6
LEDs on Side Panel 7

Chapter 4: Connecting the Wireless-N ADSL2+ Gateway 8

Overview 8
Wired Connection to a Computer 8
Wireless Connection to a Computer 9

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway 10

Overview 10
How to Access the Web-based Utility 12
The Setup Tab 12
The Wireless Tab 21
The Security Tab 29
The Access Restrictions Tab 31
The Applications and Gaming Tab 33
The Administration Tab 40
The Status Tab 46

Appendix A: Troubleshooting 50

Common Problems and Solutions 50
Frequently Asked Questions 58

Appendix B: Wireless Security 65

Security Precautions 65
Security Threats Facing Wireless Networks 65

Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter 68

Windows 98 or Me Instructions 68
Windows 2000 or XP Instructions 69

Wireless-N ADSL2+ Gateway

Appendix D: Upgrading Firmware 70
Appendix E: Glossary 71
Appendix F: Specifications 76
Appendix G: Warranty Information 78
Appendix H: Regulatory Information 79
Appendix I: Contact Information 91

Wireless-N ADSL2+ Gateway

List of Figures

Figure 2-1: Network 4
Figure 3-1: Ports and Reset Button on Side Panel 6
Figure 3-2: LEDs on Side Panel 7
Figure 4-1: Connect the ADSL Line 8
Figure 4-2: Connect a PC 8
Figure 4-3: Connect the Power 8
Figure 4-4: Connect the ADSL Line 9
Figure 4-5: Connect the Power 9
Figure 5-1: Basic Setup 12
Figure 5-2: RFC 1483 Bridged 13
Figure 5-3: RFC 1483 Routed 14
Figure 5-4: IPoA 14
Figure 5-5: RFC 2516 PPPoE 15
Figure 5-6: RFC 2364 PPPoA 15
Figure 5-7: Bridge Mode Only 16
Figure 5-8: Optional Settings 16
Figure 5-9: DDNS - DynDNS.org 18
Figure 5-10: DDNS - TZO.com 18
Figure 5-11: Advanced Routing 19
Figure 5-12: Routing Table 20
Figure 5-13: Basic Wireless Settings 21
Figure 5-14: Wireless Security - WPA-Personal 22
Figure 5-15: Wireless Security - WPA2-Personal 22
Figure 5-16: Wireless Security - WPA-Enterprise 23
Figure 5-17: Wireless Security - WPA2-Enterprise 23
Figure 5-18: Wireless Security - RADIUS 24
Figure 5-19: Wireless Security - WEP 25
Figure 5-20: Wireless MAC Filter 26
Figure 5-21: Wireless Client List 26
Figure 5-22: Advanced Wireless Settings 27
Figure 5-23: Firewall 29
Figure 5-24: VPN Passthrough 30

Wireless-N ADSL2+ Gateway

Figure 5-25: Internet Access Policy 31
Figure 5-26: Internet Policy Summary 31
Figure 5-27: List of PCs 32
Figure 5-28: Single Port Forwarding 33
Figure 5-29: Port Range Forwarding 34
Figure 5-30: Port Triggering 35
Figure 5-31: DMZ 36
Figure 5-32: QoS 37
Figure 5-33: QoS - Online Game 38
Figure 5-34: QoS - MSN Messenger 38
Figure 5-35: QoS - YAHOO Messenger 38
Figure 5-36: QoS - Skype 38
Figure 5-37: QoS - Voice Device 38
Figure 5-38: QoS - Add a New Application (Port Range) 38
Figure 5-39: QoS - Add a New Application (MAC Address) 39
Figure 5-40: Management 40
Figure 5-41: Reporting 42
Figure 5-42: View Log 42
Figure 5-43: Diagnostics 43
Figure 5-44: Ping Test 43
Figure 5-45: Backup & Restore 44
Figure 5-46: Factory Defaults 45
Figure 5-47: Firmware Upgrade 45
Figure 5-48: Gateway 46
Figure 5-49: Local Network 47
Figure 5-50: DHCP Active IP Table 47
Figure 5-51: ARP/RARP Table 47
Figure 5-52: Wireless 48
Figure 5-53: DSL Connection 49
Figure C-1: IP Configuration Screen 68
Figure C-2: MAC Address/Adapter Address 68
Figure C-3: MAC Address/Physical Address 69
Figure D-1: Firmware Upgrade 70

Wireless-N ADSL2+ Gateway

Chapter 1: Introduction

Welcome

Thank you for choosing the Wireless-N ADSL2+ Gateway. The Gateway will allow you to network wirelessly better
than ever, sharing Internet access, files and fun, easily and securely and with a greater range of up to three times
farther than standard Wireless-G.

The incredible speed of Wireless-N makes it ideal for media-centric applications like streaming video and Voice
over IP (VoIP) telephony, so your network can handle multiple data streams at the same time, with no degradation
in performance.

How does the Gateway do all of this? By connecting the Internet, as well as your computers and peripherals, to
the Gateway, then the Gateway can direct and control communications for your network. Plus, since the Gateway
is wireless, Internet access can be shared over the wireless broadcast as well as the wired network.

Use wireless security to secure your wireless network while the whole network is protected through a Stateful
Packet Inspection (SPI) firewall and Network Address Translation (NAT) technology. The Gateway also offers VPN
passthrough and other features, which can be configured through the easy-to-use, browser-based utility.

But what does all of this mean?

Networks are useful tools for sharing Internet access and computer resources. You can access one printer from
different computers and access data located on another computer’s hard drive. Networks are even used for
playing multiplayer video games. So, networks not only are useful in homes and offices, but also can be fun.

PCs on a wired network create a LAN, or Local Area Network. They are connected with Ethernet cables, which is
why the network is called “wired”. PCs equipped with wireless cards or adapters can communicate without
cumbersome cables. By sharing the same wireless settings, within their transmission radius, they form a
wireless network. This is sometimes called a WLAN, or Wireless Local Area Network. Since the Gateway has
wireless capabilities, it can bridge your wired and wireless networks, letting them communicate with each other.

Linksys recommends using the Setup CD-ROM for first-time installation of the Gateway. If you do not wish to run
the Setup Wizard on the Setup CD-ROM, then use the instructions in this Guide to help you connect the Gateway,
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 Wireless-N ADSL2+ Gateway.

802.11g: an IEEE wireless networking standard
that specifies a maximum data transfer rate of
54Mbps, an operating frequency of 2.4GHz, and
backward compatibility with 802.11b devices.

spi (stateful packet inspection) firewall: a technology
that inspects incoming packets of information before
allowing them to enter the network.

firewall: Security measures that protect the
resources of a local network from intruders.

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

network: a series of computers or devices
connected for the purpose of data sharing,
storage, and/or transmission between users

lan (local area network): The computers and
networking products that make up the network in
your home or office.

Chapter 1: Introduction
Welcome

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Wireless-N ADSL2+ Gateway

What’s in this User Guide?

This user guide covers the steps for setting up and using the Wireless-N ADSL2+ Gateway.

• Chapter 1: Introduction
This chapter describes applications of the Wireless-N ADSL2+ Gateway and this User Guide.

• Chapter 2: Planning Your Network
This chapter describes the basics of networking.

• Chapter 3: Getting to Know the Wireless-N ADSL2+ Gateway
This chapter describes the physical features of the Gateway.

• Chapter 4: Connecting the Wireless-N ADSL2+ Gateway
This chapter instructs you on how to connect the Gateway to your network.

• Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
This chapter explains how to configure the Gateway’s settings using its Web-based Utility.

• Appendix A: Troubleshooting
This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the Wireless-N ADSL2+ Gateway.

• Appendix B: Wireless Security
This appendix explains the risks of wireless networking and some solutions to reduce the risks.

• 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 filtering and/or MAC address cloning feature of the Gateway.

• Appendix D: Upgrading Firmware
This appendix instructs you on how to upgrade the firmware on the Gateway if you should need to do so.

• Appendix E: Glossary
This appendix gives a brief glossary of terms frequently used in networking.

• Appendix F: Specifications
This appendix provides the technical specifications for the Gateway.

• Appendix G: Warranty Information
This appendix supplies the warranty information for the Gateway.

Chapter 1: Introduction
What’s in this User Guide?

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Wireless-N ADSL2+ Gateway

• Appendix H: Regulatory Information
This appendix supplies the regulatory information regarding the Gateway.

• Appendix I: Contact Information
This appendix provides contact information for a variety of Linksys resources, including Technical Support.

Chapter 1: Introduction
What’s in this User Guide?

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Wireless-N ADSL2+ Gateway

Chapter 2: Planning Your Network

The Gateway’s Functions

A Gateway is a network device that connects two networks together.

In this instance, the Gateway connects your Local Area Network (LAN), or the group of computers in your home or
office, to the Internet. The Gateway processes and regulates the data that travels between these two networks.

The Gateway’s NAT feature protects your network of computers so users on the public, Internet side cannot “see”
your computers. This is how your network remains private. The Gateway protects your network by inspecting
every packet coming in through the Internet port before delivery to the appropriate computer on your network.
The Gateway 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 computer on the LAN side.

Remember that the Gateway’s ports connect to two sides. The LAN ports connect to the LAN, and the ADSL port
connects to the Internet. The LAN ports transmit data at 10/100Mbps.

IP Addresses

What’s an IP Address?

IP stands for Internet Protocol. Every device on an IP-based network, including computers, print servers, and
Gateways, 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 an IP address to your network devices. You can
assign static IP addresses or use the Gateway to assign IP addresses dynamically.

Static IP Addresses

A static IP address is a fixed IP address that you assign manually to a computer 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 must be unique and are
commonly used with network devices such as server computers or print servers.

Chapter 2: Planning Your Network
The Gateway’s Functions

Figure 2-1: Network

ip (internet protocol): a protocol used to send data
over a network

NOTE: Since the Gateway 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 Gateway uses NAT technology, the only IP
address that can be seen from the Internet for your
network is the Gateway’s Internet IP address.
However, even this Internet IP address can be
blocked, so that the Gateway and network seem
invisible to the Internet—see the Security - Firewall
tab in “Chapter 5: Configuring the Wireless-N
ADSL2+ Gateway.”

4

Wireless-N ADSL2+ Gateway

Since you use the Gateway to share your 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
Gateway. You can get that information from your ISP.

Dynamic IP Addresses

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

DHCP (Dynamic Host Configuration Protocol) Servers

Computers and other network devices using dynamic IP addressing are assigned a new IP address by a DHCP
server. The computer 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.

A DHCP server can either be a designated computer on the network or another network device, such as the
Gateway. By default, the Gateway’s DHCP Server function is enabled.

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 Gateway, see the DHCP section in “Chapter 5: Configuring the Wireless-N
ADSL2+ Gateway.”

Chapter 2: Planning Your Network
IP Addresses

5

Wireless-N ADSL2+ Gateway

Chapter 3: Getting to Know the Wireless-N ADSL2+ Gateway

Ports and Reset Button on Side Panel

The Gateway’s ports and Reset button are located on a side panel.

Figure 3-1: Ports and Reset Button on Side Panel

DSL The DSL port connects to the ADSL line.

Ethernet (1-4) The Ethernet ports connect to your computers and other network devices.

Reset Button There are two ways to reset the Gateway's factory defaults. Either press the Reset Button,

for approximately five seconds, or restore the defaults from the Factory Defaults screen of
the Administration tab in the Gateway’s Web-based Utility.

Power The Power port is where you will connect the power adapter.

Chapter 3: Getting to Know the Wireless-N ADSL2+ Gateway
Ports and Reset Button on Side Panel

IMPORTANT: Resetting the Gateway to factory
defaults will erase all of your settings
(including Internet connection, wireless, and
other settings) and replace them with the
factory defaults. Do not reset the Gateway if
you want to retain these settings.

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Wireless-N ADSL2+ Gateway

LEDs on Side Panel

The Gateway's LEDs, which indicate network activity, are located on the other side panel.

Figure 3-2: LEDs on Side Panel

(POWER) button When you want to power the Gateway on or off, push this button.

POWER Green. The POWER LED lights up when the Gateway is powered on.

WIRELESS Green. The WIRELESS LED lights up whenever there is a successful wireless connection. If

the LED is flashing, the Gateway is actively sending or receiving data to or from one of the
devices on the network.

ETHERNET (1-4) Green. The ETHERNET LED serves two purposes. If the LED is continuously lit, the Gateway

is successfully connected to a device through the Ethernet port. If the LED is flashing, it is an
indication of any network activity.

DSL Green. The DSL LED lights up whenever there is a successful DSL connection. The LED

flashes while the Gateway is establishing the ADSL connection.

INTERNET Green. The INTERNET LED lights up green when an Internet connection to the Internet

Service Provider (ISP) is established. The INTERNET LED lights up red when the connection
to the ISP fails.

Chapter 3: Getting to Know the Wireless-N ADSL2+ Gateway
LEDs on Side Panel

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Wireless-N ADSL2+ Gateway

Chapter 4: Connecting the Wireless-N ADSL2+ Gateway

Overview

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 that data. After you have the setup information you
need for your specific type of Internet connection, you can begin installation and setup of the Gateway.

To use a computer with an Ethernet adapter to configure the Gateway, continue to “Wired Connection to a
Computer.” To use a wireless-equipped computer, continue to “Wireless Connection to a Computer.”

Wired Connection to a Computer

1. Make sure that all of your network’s hardware is powered off, including the Gateway and all computers.

2. Connect a phone cable from the DSL port on the Gateway’s side panel to the wall jack of the ADSL line. A
small device called a microfilter (not included) may be necessary between each phone and wall jack to
prevent interference. Contact your ISP if you have any questions.

NOTE:
and wall jack to prevent interference. Contact your ISP if you have any questions.

3. Connect one end of an Ethernet network cable to one of the Ethernet ports (labeled 1-4) on the back of the
Gateway, and the other end to an Ethernet port on a computer. Repeat this step to connect more computers, a
switch, or other network devices to the Gateway.

4. Connect the power adapter to the Gateway’s Power port, and then plug the power adapter into a power outlet.

NOTE: You should always plug the Gateway’s power adapter into a power strip with surge
protection.

The Power LED on the front panel will light up green as soon as the power adapter is connected properly. The
Power LED will flash for a few seconds, and then it will be solidly lit when the self-test is complete. If the LED
flashes for one minute or longer, see “Appendix A: Troubleshooting.”

5. Power on one of your computers that is connected to the Gateway.

Chapter 4: Connecting the Wireless-N ADSL2+ Gateway
Overview

A small device called a microfilter (not included) may be necessary between each phone

Go to “Chapter 5: Configuring the Wireless-N ADSL2+ Gateway.”

Figure 4-1: Connect the ADSL Line

Figure 4-2: Connect a PC

Figure 4-3: Connect the Power

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Wireless-N ADSL2+ Gateway

Wireless Connection to a Computer

If you want to use a wireless connection to access the Gateway, follow these instructions:

1. Make sure that all of your network’s hardware is powered off, including the Gateway and all computers.

2. Connect a phone cable from the DSL port on the Gateway’s back panel to the wall jack of the ADSL line. A
small device called a microfilter (not included) may be necessary between each phone and wall jack to
prevent interference. Contact your ISP if you have any questions.

NOTE:

A small device called a microfilter (not included) may be necessary between each phone

and wall jack to prevent interference. Contact your ISP if you have any questions.

3. Connect the power adapter to the Power port, and then plug the power adapter into a power outlet.

NOTE: You should always plug the Gateway’s power adapter into a power strip with surge
protection.

The Power LED on the front panel will light up green as soon as the power adapter is connected properly. The
Power LED will flash for a few seconds, and then it will be solidly lit when the self-test is complete. If the LED
flashes for one minute or longer, see “Appendix A: Troubleshooting.”

4. Power on one of the computers on your wireless network(s).

5. For initial access to the Gateway through a wireless connection, make sure the computer’s wireless adapter
has its SSID set to linksys (the Gateway’s default setting), and its wireless security is disabled. After you have
accessed the Gateway, you can change the Gateway and this computer’s adapter settings to match your usual
network settings.

Go to “Chapter 5: Configuring the Wireless-N ADSL2+ Gateway.”

Figure 4-4: Connect the ADSL Line

Figure 4-5: Connect the Power

NOTE: You should always change the SSID from
its default, linksys, and enable wireless security.

Chapter 4: Connecting the Wireless-N ADSL2+ Gateway
Wireless Connection to a Computer

9

Wireless-N ADSL2+ Gateway

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

Overview

Follow the steps in this chapter and use the Gateway’s Web-based Utility to configure the Gateway. This chapter
will describe each web page in the Utility and each page’s key functions. The utility can be accessed via your web
browser through use of a computer connected to the Gateway. 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 the Management tab. The Gateway’s default username
and password is admin. To secure the Gateway, change the default username and password.

There are seven main tabs: Setup, Wireless, Security, Access Restrictions, Applications & Gaming, Administration,
and Status. Additional tabs will be available after you click one of the main tabs. Click Help for more information.

Setup

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

• DDNS. To enable the Gateway’s Dynamic Domain Name System (DDNS) feature, complete the fields on this
screen.

• Advanced Routing. On this screen, you can alter NAT and routing configurations.

Wireless

• Basic Wireless Settings. You can choose your wireless network settings on this screen.

HAVE YOU: Enabled TCP/IP on your
computers? Computers communicate over the
network with this protocol. Refer to Windows
Help for more information on TCP/IP.

NOTE: For added security, you should change
the username and password through the
Administration tab.

• Wireless Security. Configure your wireless security settings on this screen.

• Wireless MAC Filter. This screen lets you control access to your wireless network.

• Advanced Wireless Settings. On this screen you can access the advanced wireless network settings.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
Overview

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Wireless-N ADSL2+ Gateway

Security

• Firewall. Use this screen to enable/disable the firewall, set up filters, and block anonymous Internet requests.

• VPN Passthrough. You can enable or disable Virtual Private Network (VPN) Passthrough on this screen.

Access Restrictions

• Internet Access Policy. This screen allows you to control the Internet usage and traffic on your local network.

Applications & Gaming

• Single Port Range Forwarding. Use this screen to set up common services or applications that require
forwarding on a single port.

• Port Range Forwarding. To set up public services or other specialized Internet applications that require
forwarding on a range of ports, use this screen.

• Port Triggering. To set up triggered ranges and forwarded ranges for Internet applications, click this tab.

• DMZ. To allow one local computer to be exposed to the Internet for use of special-purpose services, use this
screen.

• QoS. Use Quality of Service (QoS) to assign different priority levels to different types of data transmissions.

Administration

• Management. On this screen, alter Gateway access, Simple Network Management Protocol (SNMP), Universal
Plug and Play (UPnP), and wireless management settings.

vpn (virtual private network): a security
measure to protect data as it leaves one
network and goes to another over the Internet.

• Reporting. If you want to view or save activity logs, click this tab.

• Diagnostics. Use this screen to run a Ping test.

• Backup & Restore. On this screen, you can back up or restore the Gateway’s configuration.

• Factory Defaults. If you want to restore the Gateway’s factory default settings, use this screen.

• Firmware Upgrade. Click this tab if you want to upgrade the Gateway’s firmware.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
Overview

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Wireless-N ADSL2+ Gateway

Status

• Gateway. This screen provides status information about the Gateway.

• Local Network. This provides status information about the local network.

• Wireless. This screen provides status information about the wireless network.

• DSL Connection. This screen provides status information about the DSL connection.

How to Access the Web-based Utility

To access the Web-based Utility, launch your web browser, and enter the Gateway’s default IP address,

192.168.1.1, in the Address field. Then press Enter.

A login screen will appear (Windows XP users will see a similar screen). Enter admin (the default user name) in
the User Name field, and enter admin (the default password) in the Password field. Then click the OK button.

The Setup Tab

The Basic Setup Tab

The first screen that appears is the Basic Setup tab. This tab allows you to change the Gateway's general
settings. Change these settings as described here and click the Save Settings button to save your changes, or
click the Cancel Changes button to cancel your changes. Click Help for more information.

Internet Setup

• Internet Connection Type. The Gateway supports six Encapsulation methods: RFC 1483 Bridged, RFC 1483
Routed, IPoA, RFC 2516 PPPoE, RFC 2364 PPPoA, and Bridge Mode Only. Select the appropriate type of
encapsulation from the drop-down menu. Each Basic Setup screen and available features will differ
depending on what type of encapsulation you select.

• VC Settings. You will configure your Virtual Circuit (VC) settings in this section.

• Multiplexing: Select LLC or VC, depending on your ISP.

• QoS Type: Select from the drop-down menu: CBR (Continuous Bit Rate) to specify fixed bandwidth for

voice or data traffic; UBR (Unspecific Bit Rate) for application that are none-time sensitive, such as e-mail;
or VBR (Variable Bite Rate) for bursty traffic and bandwidth-sharing with other applications.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
How to Access the Web-based Utility

Figure 5-1: Basic Setup

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Wireless-N ADSL2+ Gateway

• Pcr Rate: For the Peak Cell Rate, divide the DSL line rate by 424 to get the maximum rate the sender can

send cells. Enter the rate in the field (if required by your service provider).

• Scr Rate: The Sustain Cell Rate sets the average cell rate that can be transmitted. The SCR value is

normally less than the PCR value. Enter the rate in the field (if required by your service provider).

• Autodetect: Select Enable to have the settings automatically entered, or select Disable to enter the

values manually.

• Virtual Circuit: These fields consist of two items: VPI (Virtual Path Identifier) and VCI (Virtual Channel

Identifier). Your ISP will provide the correct settings for these fields.

• DSL Modulation: Select the appropriate mode: MultiMode, T1 .413, G.dmt, G.lite, ADSL2, or ADSL2+.

Contact your ISP if you are not sure which mode to use.

• IP Settings. Follow the instructions in the section for your type of encapsulation.

RFC 1483 Bridged

Dynamic IP

IP Settings. Select Obtain an IP Address Automatically if your ISP says you are connecting through a
dynamic IP address.

Static IP

If you are required to use a permanent (static) IP address to connect to the Internet, then select Use the
following IP Address.

• Internet IP Address. This is the Gateway’s IP address, when seen from the WAN, or the Internet. Your ISP

will provide you with the IP Address you need to specify here.

• Subnet Mask. This is the Gateway’s Subnet Mask. Your ISP will provide you with the Subnet Mask.

• Default Gateway. Your ISP will provide you with the default Gateway Address, which is the ISP server’s IP

address.

• Primary DNS (Required) and Secondary DNS (Optional). Your ISP will provide you with at least one DNS

(Domain Name System) Server IP Address.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Setup Tab

Figure 5-2: RFC 1483 Bridged

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Wireless-N ADSL2+ Gateway

RFC 1483 Routed

If you are required to use RFC 1483 Routed, then select RFC 1483 Routed.

• Internet IP Address. This is the Gateway’s IP address, when seen from the WAN, or the Internet. Your ISP

will provide you with the IP Address you need to specify here.

• Subnet Mask. This is the Gateway’s Subnet Mask. Your ISP will provide you with the Subnet Mask.

• Default Gateway. Your ISP will provide you with the default Gateway Address, which is the ISP server’s IP

address.

• Primary DNS (Required) and Secondary DNS (Optional). Your ISP will provide you with at least one DNS

(Domain Name System) Server IP Address.

IPoA

If you are required to use IPoA (IP over ATM), then select IPoA.

• Internet IP Address. This is the Gateway’s IP address, when seen from the WAN, or the Internet. Your ISP

will provide you with the IP Address you need to specify here.

• Subnet Mask. This is the Gateway’s Subnet Mask. Your ISP will provide you with the Subnet Mask.

Figure 5-3: RFC 1483 Routed

• Default Gateway. Your ISP will provide you with the default Gateway Address, which is the ISP server’s IP

address.

• Primary DNS (Required) and Secondary DNS (Optional). Your ISP will provide you with at least one DNS

(Domain Name System) Server IP Address.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Setup Tab

Figure 5-4: IPoA

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Wireless-N ADSL2+ Gateway

RFC 2516 PPPoE

Some DSL-based ISPs use PPPoE (Point-to-Point Protocol over Ethernet) to establish Internet connections. If
you are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoE. If they do,
you will have to enable PPPoE.

• User Name and Password. Enter the User Name and Password provided by your ISP.

• Connect on Demand: Max Idle Time. You can configure the Gateway to disconnect the Internet connection

after it has been inactive for a specified period of time (Max Idle Time). If your Internet connection has
been terminated due to inactivity, Connect on Demand enables the Gateway to automatically re-establish
your connection as soon as you attempt to access the Internet again. To use this option, click the Connect
on Demand radio button. In the Max Idle Time field, enter the number of minutes you want to have
elapsed before your Internet connection terminates.

• Keep Alive: Redial Period. If you select this option, the Gateway will periodically check your Internet

connection. If you are disconnected, then the Gateway will automatically re-establish your connection. To
use this option, click the Keep Alive radio button. In the Redial Period field, specify how often you want
the Gateway to check the Internet connection. The default Redial Period is 30 seconds.

RFC 2364 PPPoA

Some DSL-based ISPs use PPPoA (Point-to-Point Protocol over ATM) to establish Internet connections. If you
are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoA. If they do, you
will have to enable PPPoA.

Figure 5-5: RFC 2516 PPPoE

IMPORTANT: For Connect on Demand to work

correctly, close all Internet applications or the
Gateway may not drop the connection depending
on how often the application tries to get on the
Internet (e.g., chat programs).

• User Name and Password. Enter the User Name and Password provided by your ISP.

• Connect on Demand: Max Idle Time. You can configure the Gateway to disconnect the Internet connection

after it has been inactive for a specified period of time (Max Idle Time). If your Internet connection has
been terminated due to inactivity, Connect on Demand enables the Gateway to automatically re-establish
your connection as soon as you attempt to access the Internet again. To use this option, click the Connect
on Demand radio button. In the Max Idle Time field, enter the number of minutes you want to have
elapsed before your Internet connection terminates.

Keep Alive: Redial Period. If you select this option, the Gateway will periodically check your Internet
connection. If you are disconnected, then the Gateway will automatically re-establish your connection. To
use this option, click the Keep Alive radio button. In the Redial Period field, specify how often you want
the Gateway to check the Internet connection. The default Redial Period is 30 seconds.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Setup Tab

Figure 5-6: RFC 2364 PPPoA

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Wireless-N ADSL2+ Gateway

Bridge Mode Only

If you are using your Gateway as a bridge, which makes the Gateway act like a stand-alone modem, select

Bridge Mode Only. All NAT and routing settings are disabled in this mode.

Optional Settings (required by some ISPs)

• Host Name and Domain Name. These fields allow you to supply a host and domain name for the Gateway.
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.

• MTU and Size. The MTU (Maximum Transmission Unit) setting specifies the largest packet size permitted for
network transmission. Select Manual and enter the value desired in the Size field. It is recommended that
you leave this value in the 1200 to 1500 range. By default, MTU is configured automatically.

Network Setup

• Router IP. The values for the Gateway’s Local IP Address and Subnet Mask are shown here. In most cases,
keeping the default values will work.

• Local IP Address. The default value is 192.168.1.1.

• Subnet Mask. The default value is 255.255.255.0.

Figure 5-7: Bridge Mode Only

• Network Address Server Settings (DHCP). Configure the Gateway’s Dynamic Host Configuration Protocol
(DHCP) settings in this section.

• DHCP Server. A Dynamic Host Configuration Protocol (DHCP) server automatically assigns an IP address to

each computer on your network for you. Unless you already have one, it is highly recommended that you
leave the Gateway enabled as a DHCP server. You can also use the Gateway in DHCP Relay mode. (This
setting is not available for all Encapsulation types.)

• DHCP Server. If you enable the DHCP Relay mode for the DHCP Server setting, enter the IP address for the

DHCP relay server in the fields provided. (This setting is not available for all Encapsulation types.)

• Starting IP Address. 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 Gateway is 192.168.1.1.

• Maximum Number of DHCP Users. Enter the maximum number of users/clients that can obtain an IP

address. The number will vary depending on the starting IP address entered.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Setup Tab

Figure 5-8: Optional Settings

16

Wireless-N ADSL2+ Gateway

• Client Lease Time. The Client Lease Time is the amount of time a computer will be allowed connection to

the Gateway with its current dynamic IP address. Enter the amount of time, in minutes, that the computer
will be “leased” this dynamic IP address.

• Static DNS 1-3. The Domain Name System (DNS) is how the Internet translates domain or website names

into Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. You
can enter up to three DNS Server IP Addresses here. The Gateway will use these for quicker access to
functioning DNS servers.

• WINS. The Windows Internet Naming Service (WINS) converts NetBIOS names to IP addresses. If you use a

WINS server, enter that server’s IP address here. Otherwise, leave this field blank.

• Time Setting. Select the appropriate time zone for the Gateway’s location. If desired, check the

Automatically adjust clock for daylight saving changes checkbox.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click
the Cancel Changes button to undo your changes. Click Help for more information.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Setup Tab

17

Wireless-N ADSL2+ Gateway

The DDNS Tab

The Gateway offers a Dynamic Domain Name System (DDNS) feature. DDNS lets you assign a fixed host and
domain name to a dynamic Internet IP address. It is useful when you are hosting your own website, FTP server, or
other server behind the Gateway.

Before you can use this feature, you need to sign up for DDNS service at DynDNS.org or TZO.com.

DDNS

DDNS Service. If your DDNS service is provided by DynDNS.org, then select DynDNS.org from the drop-down
menu. If your DDNS service is provided by TZO.com, then select TZO.com from the drop-down menu. To disable
DDNS Service, select Disabled.

DynDNS.org

• User Name, Password, and Host Name. Enter the User Name, Password, and Host Name of the account you
set up with DynDNS.org.

• Status. The status of the DDNS service connection is displayed here.

• Connect. Click the Connect button to start the DDNS service connection.

Figure 5-9: DDNS - DynDNS.org

TZO.com

• E-mail Address, Password, and Domain Name. Enter the E-mail Address, Password, and Domain Name of the
account you set up with TZO.

• Status. The status of the DDNS service connection is displayed here.

• Connect. Click the Connect button to start the DDNS service connection.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click
the Cancel Changes button to undo your changes. Click Help for more information.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Setup Tab

Figure 5-10: DDNS - TZO.com

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Wireless-N ADSL2+ Gateway

The Advanced Routing Tab

The Advanced Routing screen allows you to configure the NAT, dynamic routing, and static routing settings.

Advanced Routing

• Operating Mode. In this section, you will configure the Gateway’s general routing settings.

• NAT. NAT is a security feature that is enabled by default. It enables the Gateway to translate IP addresses

of your local area network to a different IP address for the Internet. To disable NAT, click the Disabled
radio button.

• Dynamic Routing. With Dynamic Routing you can enable the Gateway to automatically adjust to physical
changes in the network’s layout. Using RIP, the Gateway determines the network packets’ route based on the
fewest number of hops between the source and the destination. The RIP protocol regularly broadcasts routing
information to other Gateways on the network.

• RIP. If you have multiple routers, you may want to use the Routing Information Protocol (RIP) so the routers

can exchange routing information with each other. To use RIP, select the Enabled radio button. Otherwise,
keep the default, Disabled.

• RIP Version. Select the protocol version you want, RIP1 or RIPv2.

• Static Routing. If the Gateway is connected to more than one network, it may be necessary to set up a static
route between them. A static route is a pre-determined pathway that network information must travel to
reach a specific host or network. To create a static route, change the following settings:

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• Select set number. Select the number of the static route from the drop-down menu. The Gateway

supports up to 20 static route entries. If you need to delete a route, then select the entry and click the
Delete This Entry button.

• Destination IP Address. The Destination IP Address is the address of the remote network or host to which

you want to assign a static route. Enter the IP address of the host for which you wish to create a static
route. If you are building a route to an entire network, be sure that the network portion of the IP address is
set to 0.

• Subnet Mask. Enter the Subnet Mask (also known as the Network Mask), which determines which portion

of an IP address is the network portion, and which portion is the host portion.

• Gateway. Enter the IP address of the gateway device that allows for contact between the Gateway and the

remote network or host.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Setup Tab

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Wireless-N ADSL2+ Gateway

• Hop Count. Hop Count is the number of hops to each node until the destination is reached (16 hops
maximum). Enter the Hop Count in the field provided.

• Show Routing Table. Click the Show Routing Table button to open a screen displaying how data is routed
through your local network. For each route, the Destination LAN IP address, Subnet Mask, Gateway, and
Interface are displayed. Click the Refresh button to update the information. Click the Close button to return to
the previous screen.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click
the Cancel Changes button to undo your changes. Click Help for more information.

Figure 5-12: Routing Table

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Setup Tab

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Wireless-N ADSL2+ Gateway

The Wireless Tab

The Basic Wireless Settings Tab

This screen allows you to choose your wireless network mode and wireless security.

Wireless Network

• Network Mode. If you have 802.11g and 802.11b devices in your network, then keep the default setting,
Mixed. If you have only Wireless-G devices, select Wireless-G Only. If you have only Wireless-B devices,
select Wireless-B Only. If you have only Wireless-N devices, select Wireless-N Only. If you want to disable
wireless networking, select Disable.

• Network Name (SSID). Enter the name for your wireless network into the field. The SSID is the network name
shared among all devices in a wireless network. It must be identical for all devices in the wireless network. It
is case-sensitive and must not exceed 32 alphanumeric characters, which may be any keyboard character.
Linksys recommends that you change the default SSID (linksys) to a unique name of your choice.

Figure 5-13: Basic Wireless Settings

• Radio Band. For best performance in a network using Wireless-N, Wireless-G and Wireless-B devices, keep
the default, Wide - 40MHz Channel. For Wireless-G and Wireless-B networking only, select Standard -
20MHz Channel.

• Wide Channel. If you selected Wide - 40MHz Channel for the Radio Band setting, then this setting will be
available for your primary Wireless-N channel. Select any channel from the drop-down menu.

• Standard Channel. Select the channel for Wireless-N, Wireless-G, and Wireless-B networking. If you selected
Wide – 40MHz Channel for the Radio Band setting, then the Standard Channel will be a secondary channel for
Wireless-N. If you are not sure which channel to select, do not make any changes.

• Wireless SSID Broadcast. When wireless computers or clients survey the local area for wireless networks to
associate with, they will detect the SSID broadcast by the Gateway. To broadcast the Gateway's SSID, keep
the default setting, Enable. If you do not want to broadcast the Gateway's SSID, then select Disable.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click
the Cancel Changes button to undo your changes. Click Help for more information.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Wireless Tab

NOTE: If you select Wide - 40MHz Channel for the
Radio Band setting, then Wireless-N can use two
channels: a primary one (Wide Channel) and a
secondary one (Standard Channel). This will
enhance Wireless-N performance.

21

Wireless-N ADSL2+ Gateway

The Wireless Security Tab

The Wireless Security settings configure the security of your wireless network. There are six wireless security
options supported by the Gateway: WPA-Personal, WPA2-Personal, WPA-Enterprise, WPA2-Enterprise, RADIUS,
and WEP. WPA stands for Pre-Shared Key, which is a security standard stronger than WEP (Wired Equivalent
Privacy) encryption. WPA2 is a more advanced, more secure version of WPA. WPA-Enterprise, WPA2-Enterprise,
and RADIUS use a RADIUS (Remote Authentication Dial-In User Service) server for authentication. These are
briefly discussed here. For detailed instructions on configuring wireless security for the Gateway, turn to
“Appendix B: Wireless Security.”

If you want to disable wireless security, select Disable from the drop-down menu for Security Mode.

• Security Mode. Select the mode you want your network to use, WPA-Personal, WPA2-Personal,
WPA-Enterprise, WPA2-Enterprise, RADIUS, or WEP. If you have devices using WPA-Personal and WPA2-
Personal, select WPA2-Personal.

Figure 5-14: Wireless Security - WPA-Personal

WPA-Personal

• Encryption. Select the method you want to use, TKIP or AES. (AES is a stronger encryption method than TKIP.)

• Pre-shared Key. Enter the key shared by the Gateway and your other network devices. It must have
8 to 63 characters.

• Key Renewal. Enter the Key Renewal period, which tells the Gateway how often it should change the dynamic
encryption keys.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. Click Help for more information.

WPA2-Personal

• Encryption. Select the method you want to use, AES or TKIP or AES.

• Pre-shared Key. Enter the key shared by the Gateway and your other network devices. It must have
8 to 63 characters.

• Key Renewal. Enter the Key Renewal period, which tells the Gateway how often it should change the dynamic
encryption keys.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. Click Help for more information.

IMPORTANT: If you are using wireless security,
always remember that each device in your
wireless network MUST use the same wireless
security method and shared key, or else the
network will not function correctly. If you have
devices using WPA-Personal and WPA2-Personal,
you should use WPA2-Personal.

Figure 5-15: Wireless Security - WPA2-Personal

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Wireless Tab

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Wireless-N ADSL2+ Gateway

WPA-Enterprise

WPA-Enterprise features WPA used with a RADIUS server. (This method should only be used when the Gateway is
connected to a RADIUS server.)

• Encryption. Select the method you want to use, TKIP or AES. (AES is a stronger encryption method than TKIP.)

• RADIUS Server. Enter the IP address of the RADIUS server.

• RADIUS Port. Enter the port number of the RADIUS server.

• Shared Key. Enter the key shared between the Gateway and its RADIUS server.

• Key Renewal. Enter the Key Renewal period, which tells the Gateway how often it should change the dynamic
encryption keys.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click
the Cancel Changes button to undo your changes. Click Help for more information.

WPA2-Enterprise

WPA2-Enterprise features WPA2 used with a RADIUS server. (This method should only be used when the Gateway
is connected to a RADIUS server.)

• Encryption. Select the method you want to use, AES or TKIP or AES.

• RADIUS Server. Enter the IP address of the RADIUS server.

• RADIUS Port. Enter the port number of the RADIUS server.

• Shared Key. Enter the key shared between the Gateway and its RADIUS server.

• Key Renewal. Enter the Key Renewal period, which tells the Gateway how often it should change the dynamic
encryption keys.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click
the Cancel Changes button to undo your changes. Click Help for more information.

Figure 5-16: Wireless Security - WPA-Enterprise

Figure 5-17: Wireless Security - WPA2-Enterprise

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Wireless Tab

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Wireless-N ADSL2+ Gateway

RADIUS

This option features WEP used in coordination with a RADIUS server. (This should only be used when a RADIUS
server is connected to the Gateway.)

• RADIUS Server. Enter the IP address of the RADIUS server.

• RADIUS Port. Enter the port number of the RADIUS server.

• Shared Key. Enter the key shared between the Gateway and its RADIUS server.

• Encryption. Select the appropriate level of encryption, 40/64-bit (10 hex digits) or 104/128-bit (26 hex
digits). A higher level of encryption is more secure.

• Passphrase. Instead of manually entering WEP keys, you can enter a Passphrase. It is case-sensitive and
should not be longer than 32 alphanumeric characters. (This Passphrase function is compatible with Linksys
wireless products only and cannot be used with Windows XP Zero Configuration. If you want to communicate
with non-Linksys wireless products or Windows XP Zero Configuration, make a note of the WEP keys
generated, and enter the appropriate one manually in the wireless computer or client.) If you want to use a
Passphrase, then enter it in the Passphrase field and click the Generate button.

• Keys 1-4. If you are not using a Passphrase, then manually enter a set of values. (Do not leave a key field
blank, and do not enter all zeroes; they are not valid key values.) If you are using 40/64-bit WEP encryption,
the key must be exactly 10 hexadecimal characters in length. If you are using 104/128-bit WEP encryption,
the key must be exactly 26 hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and
“A”-“F”.

Figure 5-18: Wireless Security - RADIUS

• TX Key. To indicate which WEP key to use, select a default Transmit (TX) Key number.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway
The Wireless Tab

24