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Instant Broadband™ Series

ADSL Gateway

Modem / Router / 4-Port Switch / Wireless-Ready

Use this guide to install the following product:

BEFDSR41W

User Guide

Linksys. Microsoft, Windows, and the Windows logo are registered trademarks of

Microsoft Corporation. All other trademarks and brand names are the property of their

respective proprietors.

LIMITED WARRANTY

Linksys guarantees that every Instant Broadband ADSL Gateway with Modem / Router /

4-Port Switch / Wireless-Ready will be free from physical defects in material and work-

manship for one year from the date of purchase, when used within the limits set forth in

the Specifications section of this User Guide. If the product proves defective during this

warranty period, call Linksys Technical Support in order to obtain a Return Authorization

number. BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING.

When returning a product, mark the Return Authorization number clearly on the outside

of the package and include a copy of your original proof of purchase. RETURN

REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. All cus-

tomers located outside of the United States of America and Canada shall be held respon-

sible for shipping and handling charges.

IN NO EVENT SHALL LINKSYS’S LIABILITY EXCEED THE PRICE PAID FOR THE PROD-

UCT FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAM-

AGES RESULTING FROM THE USE OF THE PRODUCT, ITS ACCOMPANYING SOFT-

WARE, OR ITS DOCUMENTATION. LINKSYS OFFERS NO REFUNDS FOR ITS PROD-

UCTS. Linksys makes no warranty or representation, expressed, implied, or statutory,

with respect to its products or the contents or use of this documentation and all accom-

panying software, and specifically disclaims its quality, performance, merchantability, or

fitness for any particular purpose. Linksys reserves the right to revise or update its prod-

ucts, software, or documentation without obligation to notify any individual or entity.

Please direct all inquiries to:

Linksys P.O. Box 18558, Irvine, CA 92623.

FCC PART 15 CLASS B STATEMENT

In compliance with the Federal Communications Commission (FCC), the following FCC

Part 15 Regulations are provided regarding the installation and operation of the Linksys

BEFDSR41W ADSL Gateway.

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide rea-

sonable protection against harmful interference in a residential installation.

This equipment generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference

to radio communications. However, there is no guarantee that interference will not occur

in a particular installation. If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment off and on, the

user is encouraged to try to correct the interference by one or more of the following

measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment to an outlet on a circuit different from that to which the receiv-

er is connected.

• Consult a dealer or an experienced radio/TV technician for assistance.

This device complies with Part 15 of the FCC Rules. Operation is subject to the follow-

ing two conditions:

• This device may not cause harmful interference.

• This device must accept any interference received, including interference that may

cause undesired operation.

FCC PART 68 STATEMENT

This equipment complies with Part 68 of the FCC Rules. A label is attached to the equip-

ment that contains, among other information, its FCC registration number and ringer

equivalence number. If requested, this information must be provided to the telephone

company.

This equipment uses the following USOC Jack: RJ-11.

An FCC compliant telephone cord and modular plug is provided with this equipment.

This equipment is designed to be connected to the telephone network or premises wiring

using a compatible modular jack, which is FCC Part 68 compliant. Connection to the

telephone network should be made by using the standard modular telephone jack.

The REN is useful to determine the quantity of devices that may be connected to the tele-

phone line and still have all of those devices ring when your telephone number is called.

In most, but not all areas, the sum of RENs should not exceed 5. To be certain of the

number of devices that may be connected to the line, as determined by the total RENs,

contact the telephone company to determine the maximum REN for the calling area.

If this equipment causes harm to the telephone network, the telephone company may

discontinue your service temporarily. If advance notice is not practical, the telephone

company will notify the customer as soon as possible. Also, you will be advised of your

right to file a complaint with the FCC if you believe it is necessary.

The telephone company may make changes in its facilities, equipment, operations, or

procedures that could affect the operation of the equipment. If this happens, the tele-

phone company will provide advance notice in order for you to make the necessary mod-

ifications in order to maintain uninterrupted service.

In the event this equipment should fail to operate properly, disconnect the unit from the

telephone line. Try using another FCC approved device in the same telephone jack. If

the trouble persists, call the telephone company repair service bureau. If the trouble

does not persist and appears to be with this unit, disconnect the unit from the telephone

line and discontinue use of the unit until it is repaired. Please note that the telephone

company may ask that you disconnect the equipment from the telephone network until

the problem has been corrected or until you are sure that the equipment is not malfunc-

tioning. The user must use the accessories and cables supplied by the manufacturer to

get optimum performance from the product.

No repairs may be done by the customer. If trouble is experienced with this equipment,

please contact your authorized support provider for repair and warranty information. If

the trouble is causing harm to the telephone network, the telephone company may

request you remove the equipment from the network until the problem is resolved. This

equipment cannot be used on telephone company provided coin service. Connection to

Party Line Service is subject to state tariffs.

SAFETY NOTICES

• Caution: To reduce the risk of fire, use only No.26 AWG or larger telecommunication

line cord.

• Do not use this product near water, for example, in a wet basement or near a swim-

ming pool.

• Avoid using this products (other than a cordless type) during an electrical storm.

There may be a remote risk of electric shock from lightning.

UG-BEFDSR41W-071802NC-BW

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Filtering 47

Forwarding 49

Dynamic Routing 51

Static Routing 53

DMZ Host 55

Firewall 56

Link Test 57

Appendix A: Troubleshooting 58

Common Problems and Solutions 58

Frequently Asked Questions 60

Appendix B: Configuring Wireless Security 64

Configuring Wireless Security in Windows XP 68

Appendix C: Installing the TCP/IP Protocol 73

Appendix D: Finding the MAC Address and IP

Address for Your Ethernet Adapter 75

Appendix E: Specifications 79

Environmental Specifications 80

Appendix F: Warranty Information 81

Appendix G: Contact Information 82

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Table of Contents

Chapter 1: Introduction 1

The Linksys ADSL Gateway

with Modem / Router / 4-Port Switch / Wireless-Ready 1

Features 1

Package Contents 2

Minimum Requirements 2

An Introduction to LANs and WANs 2

IP Addresses 3

Network Setup Overview 5

Chapter 2: Getting to Know the ADSL Gateway

with Modem / Router / 4-Port Switch / Wireless-Ready 6

The Gateway’s Back Panel Ports 6

The Gateway’s Front Panel LEDs 7

Chapter 3: Connecting the Gateway 9

Chapter 4: Configuring the PCs 12

Overview 12

Windows 95, Windows 98, Windows Millennium 13

Windows 2000 15

Windows XP 17

Chapter 5: Configuring the Gateway 19

Chapter 6: Using the Gateway’s Web-based

Utility 25

Quick and Easy Gateway Administration 25

Setup 26

Password 34

Status 36

DHCP 38

Log 40

UPnP 41

Help 42

Wireless 44

Advanced 46

Instant Broadband

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Series ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Chapter 1:Introduction

Thank you for choosing the Instant Broadband™ ADSL Gateway with Modem / Router / 4-

Port Switch / Wireless-Ready. This Gateway allows you to set up a network with your PCs

and share your Internet connection.

The Gateway does this by connecting to your ADSL line, and using the Gateway’s Ethernet

ports to connect your PCs; it’s like each PC is connected directly to the Internet. This way, you

have an Ethernet network where you have several PCs utilizing one Internet connection simul-

taneously. Plus, if you add a Linksys wireless PC Card, it can be used as an Access Point and

the Gateway can bridge your Ethernet network with your wireless PCs.

The PCs that you connect to the Gateway’s four LAN ports, when properly configured, cre-

ate a LAN, or Local Area Network. They are connected with an Ethernet cable plugged into

your computer’s Ethernet adapter at one end and into one of the Gateway's LAN ports (num-

bered from one to four) at the other end. The term “Ethernet” is used to refer to your network

accessories, such as cables and adapters, because Ethernet refers to the type of network that

you are setting up. Ethernet refers to the accessories that transfer computer data from 10Mbps

to 100Mbps (speeds used by network devices.)

The Gateway allows you to share your ADSL connection using a built-in ADSL modem, and

can plug directly into your ADSL-enabled wall jack (DSL service line). The PCs that are con-

nected to the Gateway share this connection.

• Download Speeds of up to 8Mbps

• Upload Speeds of up to 800kbps

• Prevents DoS (Denial of Service) Attacks

• E-mail and Web-based Logging of Security Events

• MAC Address Filtering, Port Forwarding, DMZ Support

• Configurable through Your Networked PC’s Web Browser

• Supports VPN Pass-Through for IPSec, PPTP, and L2TP Protocols

• Internal 4-Port Switch Dramatically Speeds Up Your Network

• DHCP Server Capability to Assign IP Addresses Automatically

• Wireless Capabilities Available with Use of Optional WPC11 (sold separately)

• Supports a High Data Rate of up to 11Mbps for up to 28 Simultaneous

Wireless Connections

• Capable of 64 and 128-Bit WEP Encryption

• Compliant with ANSI T1.413i2, ITU-T G.dmt (G.992.1), and ITU G.lite

(G.992.2) Standards

• Supports RFC 1483, RFC 2364 PPPoA, RFC 2516 PPPoE Protocols

The Linksys ADSL Gateway

with Modem / Router / 4-Port Switch / Wireless-Ready

Features

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Think of the Gateway as a network device with two sides: the first side is made

up of your private Local Area Network (LAN) of PCs. The other, public side is

the Internet, or the Wide Area Network (WAN), outside of your home or office.

The Gateway’s firewall (NAT) protects your network of PCs so users on the

public, Internet side cannot “see” your PCs. This is how your LAN, or network,

remains private. The Gateway protects your network by inspecting the first

packet coming in through the WAN port before delivery to the final destination

on the LAN port. The Gateway inspects Internet port services like the web serv-

er, ftp server, or other Internet applications, and, if allowed, it will forward the

packet to the appropriate PC on the LAN side.

What’s an IP Address?

IP stands for Internet Protocol. Every device on 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 WAN and LAN connections.

There are two ways of assigning an IP address to your network devices.

Static IP Addresses

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 com-

monly used with network devices such as server PCs or print servers.

When using the Gateway to share your ADSL 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

the information from your ISP.

IP Addresses

Note: Since the Gateway is a device that connects two networks, it

needs two IP addresses—one for the LAN side, and one for the WAN

side. In this User Guide, you’ll see references to the “WAN IP

address” and the “LAN IP address.”

Since the Gateway has firewall security (NAT), the only IP address that

can be seen from the Internet for your network is the Gateway’s WAN

IP address.

However, even this WAN IP address for the Gateway can be blocked,

so that the Gateway and network seem invisible to the Internet—see

the IP Filtering section in “Chapter 6: Using the Gateway’s Web-based

Utility.”

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• One ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

• One Power Adapter

• One RJ-11 Phone Cable

• One User Guide

• One Fast Start and Registration Card (not shown)

• Network Adapter with Ethernet (UTP CAT 5) Cabling and TCP/IP Protocol

Installed per PC

• Internet Explorer 4.0 or Netscape Navigator 4.7 or Higher for Web-based

Configuration

• ADSL Connection and Activated Account

• Optional Wireless Network PC Card Model WPC11 for Wireless Connection

(sold separately)

Simply put, a router is a network device that connects two networks together.

In this instance, the Gateway connects your Local Area Network (LAN), or

the group of PCs in your home or office, to the Wide Area Network (WAN),

that is, the Internet. The Gateway processes and regulates the data that travels

between these two networks.

Minimum Requirements

Package Contents

Figure 1-1

An Introduction to LANs and WANs

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

This user guide covers the basic steps for setting up a network with a Gateway.

After going through the “Getting to Know the Gateway” chapter, most users

will only need to use the following chapters:

• Chapter 3: Connecting the Gateway

This chapter instructs you on how to connect the ADSL line to the Gateway

and connect the PC(s) to the Gateway.

• Chapter 4: Configuring the PCs

This chapter instructs you on how to configure your PC(s) for a DHCP con-

nection, if the network settings are not already set to DHCP.

• Chapter 5: Configuring the Gateway

This chapter explains how to configure the Gateway using your web browser

and the Gateway’s web-based utility. You will configure the Gateway using

the settings provided by your ISP.

When you’re finished with the basic steps, then you are ready to connect to the

Internet. After the PC(s) can access the Internet through the Gateway, you can

alter the Gateway’s settings further; for example, you can adjust security fea-

tures and other settings to enable online gaming, run Internet servers, config-

ure a wireless LAN (WPC11 required) and more!

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Dynamic IP Addresses

A dynamic IP address is automatically assigned to a device on the network,

such as PCs and print servers. These IP addresses are called “dynamic”

because they are only temporarily assigned to the PC or 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.

For ADSL 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 con-

nection 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. PPPoE also will provide the Gateway with a dynam-

ic IP address to establish a connection to the Internet. Point to Point Protocol

over ATM, or PPPoA, is a similar login method also used for some ADSL con-

nections.

DHCP (Dynamic Host Configuration Protocol) Servers

DHCP frees you from having to assign IP addresses manually every time a new

user is added to your network. PCs and other network devices using dynamic

IP addressing are assigned a new IP address by a DHCP server. The PC or net-

work device obtaining an IP address is called the DHCP client. By default, the

Gateway’s WAN setting is DHCP client.

A DHCP server can either be a designated PC on the network or another net-

work device, such as the Gateway. By default, a DHCP server (LAN side) is

enabled on the Gateway. 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 sec-

tion in “Chapter 6: Using the Gateway’s Web-based Utility.”

Note: Even if you assign a static IP address to a PC, other PCs can

still use DHCP’s dynamic IP addressing, as long as the static IP

address is not within the DHCP range of the LAN IP Address.

If the dynamic IP addressing fails to provide a dynamic IP address,

refer to “Appendix A: Troubleshooting.”

Network Setup Overview

Notebook with

Ethernet Adapter

ADSL Gateway

with Modem / Router / 4-Port

Switch / Wireless-Ready

LAN

PC with

Ethernet Adapter

WAN

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

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Power Green. The Power LED lights up when the Gateway is pow-

ered on.

Diag Green. The Diag LED flashes when the Gateway is booting

up. If this flashes or stays solid after the bootup phase, the

Gateway may be malfunctioning. See “Appendix A:

Troubleshooting” if you encounter this problem.

Link/Act Green. The Link/Act LED serves two purposes. If the LED

is continuously lit, the Gateway is successfully connected to

a device through the corresponding port (1, 2, 3 or 4). If the

LED is flickering, the Gateway is actively sending or receiv-

ing data over that port.

Full/Col Green. The Full/Col LED also serves two purposes. If this

LED is lit up continuously, the connection made through the

corresponding port is running in Full Duplex mode. If the

LED flickers, the connection is experiencing collisions.

Infrequent collisions are normal.

100 Green. The 100 LED lights up when a successful 100Mbps

connection is made through the corresponding port.

If this LED does not light up, then your connection speed is

10 Mbps.

WLAN Link Green. This LED is solidly lit when a wireless PC Card is

inserted and functioning in the Gateway.

WLAN Act Green. This LED flashes when there is wireless activity.

The Gateway’s Front Panel LEDs

Figure 2-2

Chapter 2:Getting to Know the

ADSL Gateway with Modem / Router / 4-

Port Switch / Wireless-Ready

The Gateway’s ports, where network cables are connected, are located on the

back panel of the Gateway.

ADSL The ADSL port is where you will connect your

ADSL line.

Ports 1-4 These four LAN (Local Area Network) ports con-

nect to network devices, such as PCs, print servers,

and remote hard drives.

Power The Power port is where you will connect the

power adapter.

On/Off Switch This switch is used for turning the Gateway on and

off.

PC Card Slot This is where you can connect the optional wireless

PC card (not included) for wireless features.

The Gateway’s Back Panel Ports

Figure 2-1

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

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Chapter 3:Connecting the

Gateway

You will connect the Gateway to your ADSL line and to the computers in your

home or business.

First, make sure that all the devices that you’ll be working with are powered

down, including your PCs and the Gateway.

1. Connect one end of the provided phone cable to the ADSL (RJ-11 phone)

port that is on the back of the Gateway.

2. Connect the other end of the phone cable to the wall jack with ADSL service.

ADSL Session Green. This LED is solidly lit when a PPPoE session is estab-

lished.

ADSL Link Green. This LED is off when an ADSL line is not detected.

It flashes when the Gateway is attempting to make an ADSL

connection. The LED is solidly lit when an ADSL connection

has been successfully established.

ADSL Act Green. This LED flashes when there is activity across the

ADSL connection.

Proceed to “Chapter 3: Connecting the Gateway.”

Connecting Your Hardware and Booting Up

Figure 3-1

Figure 3-2

The Reset Button

Briefly pressing the Reset Button or rebooting the Gateway will refresh the

Gateway’s connections. If the Gateway locks up, simply press the Reset Button

or power it down for three to five seconds. Leaving the power off for too long

could result in the loss of network connections.

Pressing the Reset Button and holding it in for a few seconds will clear all of

the Gateway’s data and restore the factory defaults. This should be done only

if you are experiencing heavy routing problems, and only after you have

exhausted all of the other troubleshooting options. By resetting the Gateway,

you run the risk of creating conflicts between your PCs’ actual IP Addresses

and what the Gateway thinks their IP Addresses should be. You may be forced

to reboot each network PC.

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

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4. Connect the power adapter to the Gateway. Plug the power adapter into the

electrical outlet.

5. Turn on the Gateway. Then, turn on the first PC that you want to use to con-

figure the Gateway.

Go to “Chapter 4: Configuring the PCs.”

3. Connect one end of an Ethernet cable to your PC’s Ethernet adapter. Connect

the other end of the cable to one of the LAN ports on the back of the Gateway.

Repeat this process for every PC that you want to connect to the Gateway.

Note: If your PC’s Ethernet adapter is not set up, please refer to the Ethernet

adapter’s user guide for more information.

If you are connecting more than four PCs to the Gateway, you will also need

to connect a hub or switch to the Gateway.

Figure 3-3

Figure 3-4

Figure 3-5

Figure 3-6

Note: The ADSL Gateway (with optional WPC11) is configured by

default to work out of the box with all Linksys Wireless Adapters. If

you have changed the defaults on your Linksys Wireless Adapters, or

are using other wireless adapters, you must temporarily change your

wireless adapter settings to: (SSID = linksys) in order to initially

access the Gateway wirelessly. After you have accessed the Gateway

with the default settings, you can change the Gateway settings to coin-

cide with your Network settings and reset your adapters.

Note: A small device called a microfilter (not included) may be nec-

essary between each phone and wall jack to prevent interference.

Contact your ISP if you have any questions.

Note: If you have a Linksys wireless PC Card (WPC11), be sure to

fully insert it into the PC Card slot on the back of the Gateway before

turning on the power. You must have this card inserted in order to

use the Gateway's wireless features.

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

1. Go to the Network screen by clicking 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. Do not choose a TCP/IP entry whose name mentions

DUN, 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 “Appendix C: Installing

the TCP/IP Protocol” or your Ethernet adapter’s user guide to install

TCP/IP now.) Click the Properties button.

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Chapter 4: Configuring the PCs

The instructions in this chapter will help you configure each of your comput-

ers to be able to communicate with the Gateway.

To do this, you need to configure your PC’s network settings to obtain an IP (or

TCP/IP) address automatically (called DHCP). Computers use IP addresses to

communicate with each other across a network or the Internet.

You will need to know which operating system your computer is running, such

as Windows 95, 98, Millennium, 2000, or XP. One way to find out which oper-

ating system you have is by clicking the Start button and then going to the

Settings option. Then click Control Panel, and then double-click the System

icon.

You may need to do this for each computer you are connecting to the Gateway.

The next few pages tell you, step by step, how to configure your network set-

tings based on the type of Windows operating system you are using.

If your operating system is not referenced here, refer to your operating system

documentation.

Once you've configured your computers, continue to “Chapter 5: Configuring

the Gateway.”

Figure 4-1

Windows 95, Windows 98, Windows Millennium

Overview

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

1. Go to the Network screen by clicking the Start button. Click Settings and

then Control 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). Do not choose a

TCP/IP entry whose name mentions DUN, PPPoE, VPN, or AOL. Double-

click the Local Area Connection.

3. The Local Area Connection Status screen will appear. Click the Properties

button.

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3. Click the IP Address tab. Select Obtain an IP address automatically.

4. Now click the Gateway tab to ensure that the Installed Gateway field is left

blank. Click the OK button.

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 5: Configuring the Gateway.”

Windows 2000

Figure 4-3

Figure 4-2

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

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 to the Network screen by clicking the Start button and then Control

Panel. From there, click 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.

3. The Local Area Connection Status screen will appear. Click the Properties

button.

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4. Select Internet Protocol (TCP/IP), and click the Properties button.

5. Select Obtain an IP address automatically. Once the new window

appears, click the OK button. Click the OK button again to complete the

PC configuration.

6. Restart your computer.

Go to “Chapter 5: Configuring the Gateway.”

Windows XP

Figure 4-6

Figure 4-4

Figure 4-5

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Chapter 5:Configuring the

Gateway

In this chapter, you will configure the Linksys ADSL Gateway to be able to

gain access to the Internet through your Internet Service Provider (ISP). You

will need the setup information provided by your ADSL ISP:

• Your ADSL line VPI and VCI

• Your ADSL encapsulation type and multiplexing

For PPPoA or PPPoE users, you also need these values from your ISP:

• Your username and password

For RFC 1483 users, you may need these values from your ISP:

• Your ADSL fixed Internet IP address

• Your Subnet Mask

• Your Default Gateway

• Your primary DNS IP address

The above information should have been provided by your ADSL ISP. If not, contact

your ISP and they will be able to supply you with the correct settings. The instructions

from your ISP tell you how to set up your PC for Internet access. Because you

are now using the Gateway to share Internet access among several computers,

you will use the setup information to configure the Gateway instead of your

PC. You only need to configure the Gateway once using the first computer you

set up.

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4. Select Internet Protocol (TCP/IP), and click the Properties button.

5. Select Obtain an IP address automatically. Once the new window

appears, click the OK button. Click the OK button again (or the Close but-

ton if any settings were changed) to complete the PC configuration.

6. Restart your computer.

Go to “Chapter 5: Configuring the Gateway.”

Figure 4-7

Figure 4-8

Configuring the Gateway

Figure 5-1

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

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4. The Gateway supports five modes of Encapsulation: RFC 1483 Bridged,

RFC 1483 Routed, RFC2364 PPPoA, RFC2516 PPPoE, and Bridged Mode

Only. These modes are listed in the drop-down menu for the Encapsulation

setting. Each Setup screen and available features will differ depending on

what kind of connection mode you select. The instructions for RFC 1483

Bridged, RFC2516 PPPoE, and RFC2364 PPPoA are listed below; if the

instructions for your connection mode is not explained here, then proceed

to “Chapter 6: Using the Gateway’s Web Based Utility.”

A. RFC 1483 Bridged

This mode supports two types of WAN IP Addresses: Dynamic IP Address or

Static IP Address. Follow the directions for the type of WAN IP Address you

need to use.

Dynamic IP Address

If your ISP says that you are connecting through a dynamic IP address, fol-

low these steps:

1. Select Dynamic IP Address as the WAN IP Address.

2. Click the Apply and Continue buttons to save the settings.

1. Open your web browser. (It is all right if you get an error message at this

point. Continue following these directions.) Enter http://192.168.1.1 in the

web browser’s Address field. Press the Enter key.

2. An Enter Network Password window, shown in Figure 5-3, will appear

(Windows XP users will see a Connect to 192.168.1.1 window, shown in

Figure 5-4). Enter admin in lowercase letters in the User Name field, and

enter admin in lowercase letters in the Password field (admin is the default

user name and password). Then, click the OK button.

3. The Gateway 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 Gateway. These fields are usually left blank.

If requested by your ISP, complete these two fields.

Virtual Circuit ID (VPI and VCI) These fields consist of two items: VPI

(Virtual Path Identifier) and VCI (Virtual Channel Identifier). Your ISP

will provide the correct settings for this field.

Figure 5-2

Figure 5-3 Figure 5-4

Figure 5-5

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

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Static IP Address

If your ISP says that you are connecting through a static or fixed IP address

from your ISP, follow these steps:

1. Select Static IP Address as the WAN IP Address.

2. Enter the IP Address.

3. Enter the Default Gateway Address.

4. Enter the DNS in the 1 and/or 2 fields. You need to enter at least one

DNS address.

5. Click the Apply and Continue buttons to save the settings.

B. RFC 2516 PPPoE or RFC 2364 PPPoA

If your ISP says that you are connecting through PPPoE or PPPoA, or if you

normally enter a user name and password to access the Internet, follow these

steps:

1. Select PPPoE or PPPoA as appropriate for the WAN Connection

Type.

2. If you selected PPPoE, enter the Service Name (if required).

3. Enter the User Name.

4. Enter the Password.

5. Click the Apply and Continue buttons to save the settings.

Figure 5-7

Figure 5-6

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Chapter 6:Using theGateway’s

Web-based Utility

For your convenience, an administrative utility has been programmed into the

Gateway where all Gateway-based administrative tasks are performed. This

chapter will explain all of the functions in this utility. The web utility can be

accessed by an PC on the network by typing the Gateway’s default IP address

192.168.1.1 in the PC’s web browser address window, as shown in Figure 6-1.

Press the Enter key.

An Enter Network Password window, shown in Figure 6-2, will appear

(Windows XP users will see a Connect to 192.168.1.1 window, shown in Figure

6-3). Enter admin in lowercase letters in the User Name field, and enter admin

in lowercase letters in the Password field (admin is the default user name and

password). Then, click the OK button.

In the following sections, you’ll find brief descriptions of each web page in the

utility and each page’s key functions. More detailed explanations and instruc-

tions can be found by clicking each page’s Help button or on Linksys’s website

at www.linksys.com To apply any of the settings you change on a page, click

the Apply button, and then click the Continue button. To cancel any values

you’ve entered on any page, click the Cancel button.

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Quick and Easy Gateway Administration

Figure 6-1

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. Congratulations! You’ve suc-

cessfully configured the

Gateway. Test the setup by

opening your web browser

from any computer and entering www.linksys.com/registration.

If you need advanced setting information, please refer to “Chapter 6: Using

the Gateway’s Web-Based Utility” or the Linksys support website at

support.linksys.com.

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.”

Go to “Chapter 6: Using the Gateway’s Web-based Utility” for more

details and advanced settings information.

Figure 5-8

Figure 6-2 Figure 6-3

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

• Encapsulation The Gateway supports five encapsulation modes: RFC

1483 Bridged, RFC 1483 Routed, RFC 2364 PPPoA, RFC2516 PPPoE,

and Bridged Mode Only. These modes can be selected from the drop-down

menu next to the Encapsulation setting. Each Setup screen and available

features will differ depending on what kind of connection mode you select.

Each mode is described on the following pages.

• Multiplexing The Gateway supports both VC and LLC multiplexing. Your

ISP will provide the correct selection for this setting.

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The Setup screen is the first screen you see when you access the web-based

utility. If you have already installed and set up the Gateway, you have already

seen this screen and properly configured each of the values.

• Host Name & Domain Name These fields allow you to supply a host and

domain name for the Gateway. Some ISPs require these names as identifi-

cation. 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, leaving these fields blank will work.

• Firmware Version This entry shows the version and date of the firmware

you are using. Future versions of the Gateway’s firmware will be posted and

available for download on the Linksys website at www.linksys.com.

• Current Time The Gateway will try to reach an Internet timeserver and dis-

play the current time in this location. If a timesaver cannot be reached, this

will show the time elapsed since the Gateway was powered on.

• Time Zone Set your local time zone in this field. If your region participates

in Daylight Savings Time (DST), check the box next to Daylight Savings

Time.

• LAN IP Address and Subnet Mask The values for the Gateway’s IP

Address and Subnet Mask as seen on the internal LAN are shown here. The

default values are 192.168.1.1 for the Device IP Address and 255.255.255.0

for the Subnet Mask.

• Virtual Circuit ID 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.

VPI Enter the number provided by your ISP. The number will be in the

range of 0 to 255.

VCI Enter the number provided by your ISP. The number will be in the

range of 0 to 65535.

Note: After setup, you can test and see if the settings are correct by

successfully connecting to the Internet.

Figure 6-4

Setup

Note: The screen you see may vary depending on what kind of con-

nection mode you select.

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Static IP Address Choose this option if your ISP provided you with the fol-

lowing information: IP Address, Default Gateway Address, and DNS Server

Address(es).

1. Enter the IP address provided by the ISP in the Specify an IP

Address field.

2. Enter the Default Gateway Address in the Default Gateway Address

field.

3. Enter the DNS Server Address(es) in the DNS 1 and DNS 2 fields.

To apply any of the settings you change on a page, click the Apply button, and

then click the Continue button. To cancel any values you’ve entered on any

page, click the Cancel button. For more information on this tab, you can click

the Help button.

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RFC 1483 Bridged

This mode supports two additional mode selections in the drop-down menu

for the WAN IP Address setting, Dynamic IP Address and Static IP

Address. The Setup screen and features displayed will differ depending on

which mode you select.

Dynamic IP Address Choose this option if your ISP assigns IP addresses

via DHCP.

To apply any of the settings you change on a page, click the Apply button, and

then click the Continue button. To cancel any values you’ve entered on any

page, click the Cancel button. For more information on this tab, you can click

the Help button.

Figure 6-5

Figure 6-6

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RFC 2364 PPPoA

Choose this option if your ISP told you to use this mode of encapsulation.

Use the User Name and Password provided by your ISP.

1. Enter the User Name in the Specify an IP Address field.

2. Enter the Password in the Password field.

3. Choose either Connect on Demand or Keep Alive to determine how

the Gateway will maintain your Internet connection during any period

of inactivity. If you have been disconnected 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. You can

configure the Gateway to cut your connection with your ISP after a

specific period of time (Max Idle Time). The Keep Alive option keeps

your Internet Access connected indefinitely, even when it sits idle.

To apply any of the settings you change on a page, click the Apply button, and

then click the Continue button. To cancel any values you’ve entered on any

page, click the Cancel button. For more information on this tab, you can click

the Help button.

Figure 6-8

RFC 1483 Routed

Choose this option if your ISP told you to use this mode of encapsulation.

Use the IP address and DNS Server Address(es) provided by your ISP.

1. Enter the IP address provided by the ISP in the Specify an IP

Address field.

2. Enter the DNS Server Address(es) in the DNS 1 and DNS 2 fields.

To apply any of the settings you change on a page, click the Apply button, and

then click the Continue button. To cancel any values you’ve entered on any

page, click the Cancel button. For more information on this tab, you can click

the Help button.

Figure 6-7

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Bridged Mode Only

Choose this option if your ISP told you to use this mode of encapsulation.

This mode is used to configure the Gateway as an RFC1483 bridge, when the

Gateway’s routing and NAT capabilities need to be disabled.

To apply any of the settings you change on a page, click the Apply button, and

then click the Continue button. To cancel any values you’ve entered on any

page, click the Cancel button. For more information on this tab, you can click

the Help button.

Figure 6-10

RFC 2516 PPPoE

Choose this option if your ISP told you to use this mode of encapsulation.

Use the User Name, Password, and Service Name (if applicable) provided by

your ISP.

1. Enter the Service Name (if provided) in the field.

2. Enter the User Name in the Specify an IP Address field.

3. Enter the Password in the Password field.

4. Choose either Connect on Demand or Keep Alive to determine how

the Gateway will maintain your Internet connection during any period

of inactivity. If you have been disconnected 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. You can

configure the Gateway to cut your connection with your ISP after a

specified period of time (Max Idle Time). The Keep Alive option keeps

your Internet access connected indefinitely, even when it sits idle.

To apply any of the settings you change on a page, click the Apply button, and

then click the Continue button. To cancel any values you’ve entered on any

page, click the Cancel button. For more information on this tab, you can click

the Help button.

Figure 6-9

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• SNMP Trap Community Enter the password sent with each trap to the

SNMP manager.

• SNMP Trap Destination Enter the IP address of the station that receives

the SNMP traps sent by the Gateway.

• Restore Factory Defaults If you select the Restore Factory Defaults option

and click the Apply button, you will clear all of the Gateway’s settings.

Do not restore the factory defaults unless you are having difficulties with

the Gateway and have exhausted all other troubleshooting measures. Once

the Gateway is reset, you will have to re-enter all of your configuration data.

To apply any of the settings you change on a page, click the Apply button, and

then click the Continue button. To cancel any values you’ve entered on any

page, click the Cancel button. For more information on this tab, you can click

the Help button.

On the Password screen, you can change the Gateway’s password, configure

SNMP settings, and restore the Gateway’s factory default settings.

• Router Password It is strongly recommended that you set a password for

the Gateway. The default password is admin. If you don’t change the pass-

word, all users on your network will be able to access the Gateway using the

default password admin. Re-enter the new password in the second field.

• SNMP Get Community Set the read-only community string for SNMP. It

is strongly recommended to change this field to a name that cannot be eas-

ily guessed. The default string is public.

• SNMP Set Community Set the read/write community string for SNMP. It

is strongly recommended to change this field to a name that cannot be eas-

ily guessed. The default string is private.

• SNMP Trusted Host If you enter a trusted host address here, the Gateway

will only respond to SNMP messages from this IP address. If you leave the

field blank (which is the default), the Gateway will respond to all SNMP

messages it receives, regardless of source.

Password

Figure 6-11

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

• Downstream Speed This indicates the maximum speed at which the ADSL

Gateway will receive data.

• Login This indicates the status of the PPPoA or PPPoE login (if applica-

ble).

• LAN These fields display the current MAC Address, LAN IP Address, and

Subnet Mask of the Gateway, as seen by users on your local area network.

The status of the DHCP Server is also displayed, if applicable.

•WAN These fields display the WAN IP Address, WAN Subnet Mask, and

WAN Default Gateway IP Address of the Gateway, as seen by external users

on the Internet. The DNS (Domain Name System) IP Address field(s) show

the IP address(es) of the DNS currently used by the Gateway. Multiple DNS

IP settings are common. In most cases, the first available DNS entry is

used.

• DHCP Clients Table Click the DHCP Clients Table button to view the list

of PCs that were given IP addresses by the Gateway.

DHCP

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This screen displays the current status of the Gateway; it reflects the data and

selections you’ve entered using the Setup screen and provides an option for

DHCP users.

All of the information provided on this screen is read-only. To make changes,

select the Setup tab.

• Host Name This field shows the name of the Gateway.

• Firmware Version This field shows the installed version and date of the

firmware. Version dates are slightly more accurate than version numbers.

• Link Status This indicates the status of the ADSL link. It tells you if the

ADSL Gateway is disconnected, attempting to connect, or connected.

• Upstream Speed This indicates the maximum speed at which the ADSL

Gateway will transmit data.

Figure 6-12

Status

Note: The information provided and buttons available may

vary depending on the Gateway’s settings.

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

• Number of DHCP Users Enter the maximum number of PCs that you want

the DHCP server to assign IP addresses to. This number cannot be greater

than 253.

• DHCP Clients Table Click the DHCP Clients Table button to show the

current DHCP Client data. You will see the MAC address, computer name,

and IP address of all network clients using the DHCP server. (This data is

stored in temporary memory and changes periodically.)

To apply any of the settings you change on a page, click the Apply button, and

then click the Continue button. To cancel any values you’ve entered on any

page, click the Cancel button. For more information on this tab, you can click

the Help button.

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The Gateway can be set up as a DHCP (Dynamic Host Configuration Protocol)

server on your network. A DHCP server automatically assigns an IP address to

each PC on your network for you. Unless you already have one, it is highly rec-

ommended that you leave the Gateway enabled as a DHCP server.

If you choose to enable the DHCP server option, you must configure all of the

PCs on your LAN to connect to a DHCP server, or to obtain their IP addresses

automatically. See “Chapter 4: Configuring the PCs” for more information.

If the Gateway’s DHCP server function is disabled, you have to carefully con-

figure the IP address, Subnet Mask and DNS settings of every computer on

your network. Do not assign the same IP address to more than one computer.

• DHCP Server DHCP is already enabled by factory default. If you already

have a DHCP server on your network, set the Gateway’s DHCP option to

Disable.

• Starting IP Address Enter a value for the DHCP server to start with when

issuing IP addresses.

DHCP

Figure 6-13

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The Log tab provides you with a log of all incoming and outgoing URLs or IP

addresses for your Internet connection.

• Access Log To log incoming and outgoing traffic, select the Enable option

next to Access Log. This function can be disabled by clicking the Disable

radio button.

• Send Log to The log can be forwarded to the IP address of a specific com-

puter.

• Incoming Access Log and Outgoing Access Log With logging enabled,

you can choose to view temporary logs. Temporary logs can be accessed

from the Log screen by clicking either the Incoming Access Log or

Outgoing Access Log button. The Incoming Access Log is a log of all the

Internet traffic entering the Gateway on the ADSL side. The Outgoing

Access Log is a log of all traffic entering the Gateway on the LAN side.

To clear any values you’ve entered on any page, click Cancel and re-enter

information. To apply any settings you’ve altered on any page, click the Apply

button. Once all settings are correct, click Continue. For more information on

this tab, you can click the Help button.

Universal Plug and Play (UPnP) allows operating systems with UPnP support

to automatically detect and configure the Gateway. UPnP allows UPnP-enabled

applications, such as gaming and videoconferencing, to automatically manage

the Gateway. See your operating system’s documentation for instructions on

how to enable this feature on your system.

To clear any values you’ve entered on any page, click Cancel and re-enter

information. To apply any settings you’ve altered on any page, click the Apply

button. Once all settings are correct, click Continue. For more information on

this tab, you can click the Help button.

UPnP

Figure 6-15

Log

Figure 6-14

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

To upgrade the Gateway’s firmware:

1. Select the Help tab (see Figure 6-16).

2. Click Upgrade Firmware to display a new window (see Figure 6-17).

3. Click the Browse button to find the firmware upgrade file that you down-

loaded from the Linksys website and then extracted.

4. Double-click the firmware file you downloaded and extracted. Click the

Upgrade button, and follow the instructions there.

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Under the Help tab, you’ll find links to all of the Gateway’s internal support

documentation, including the application that upgrades the Gateway’s

firmware.

New firmware versions are posted at www.linksys.com and can be downloaded

for free. If the Gateway can access the Internet already, there’s no need to

download a newer firmware version, unless that version has a new feature that

you want to use. Loading new firmware onto the Gateway does not enhance

the speed or the quality of your connection speed.

Help

Figure 6-16

Figure 6-17

Note: By upgrading the Gateway’s firmware, you may lose the Gateway’s

configuration settings.

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

On the WEP Key Setting screen, you can make the following choices:

• Select 64- or 128-bit WEP encryption.

• Select Passphrase generation for easy setup of encryption fields.

• Configure the manual entry of WEP encryption keys.

• Configure the default transmit WEP key.

• Firmware Version The wireless card’s firmware version is listed in this

field.

• RTS Threshold. This value should remain at its default setting of 2432.

Should you encounter inconsistent data flow, only minor modifications are

recommended.

• Fragmentation Threshold. This value should remain at its default setting

of 2432. It specifies the maximum size a data packet will be before split-

ting and creating a new packet. A smaller setting means smaller packets,

which will create more packets for each transmission. Only minor modifi-

cations of this value are recommended.

To clear any values you’ve entered on any page, click Cancel and re-enter

information. To apply any settings you’ve altered on any page, click the Apply

button. Once all settings are correct, click Continue. For more information on

this tab, you can click the Help button.

Use the Wireless screen to configure the Gateway for your wireless network.

• SSID The Service Set Identifier (SSID) is the unique name shared among

all clients and access points in a wireless network. The SSID must be iden-

tical for all clients and access points participating in the same network. The

SSID is case-sensitive and must not exceed 30 characters.

For security reasons, it is recommended that you change the SSID from the

default “linksys”, and avoid common names (e.g. Company name).

• Channel This specifies the channel (frequency) used for the wireless net-

work. Select the appropriate channel to correspond with your network set-

tings, between 1 and 11 (in North America). All points in your wireless net-

work must use the same channel in order to function correctly.

• WEP The WEP Encryption method is Disabled by default. To enable

WEP, click the Mandatory radio button. Click the WEP Key Setting but-

ton to configure the WEP key settings.

Figure 6-18

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Wireless

Note: For further details on configuring wireless security using WEP,

refer to “Appendix B: Configuring Wireless Security.”

Note:You must insert the Linksys wireless PC card in the PC card slot on

the back of the Gateway before you can use the wireless features.

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The following instructions are for advanced users or users whose setup needs

require special configuration. When you click the Advanced tab, you will be

able to set up these features. There are seven additional tabs available.

• Filters - Block specific internal users from Internet access and enable Virtual

Private Network (VPN) sessions.

• Forwarding - Sets up public services on your network.

• Dynamic Routing - Sets up the Gateway so it will automatically adjust to

physical changes in the network’s layout.

• Static Routing - Sets up static routes needed when network information must

travel to a specific host or network.

• DMZ Host - Allows one local user to be exposed to the Internet for use of

special-purpose services such as online gaming or videoconferencing.

• Firewall - Allows the Gateway to use Stateful Packet Inspection (SPI) to auto-

matically detect and block Denial of Service (DoS) and hacking attempts.

• Link Test - Allows an advanced user or technician to perform advanced diag-

nostics of the ADSL Gateway and perform connectivity tests.

Filters block specific internal users from accessing the Internet and enable

Virtual Private Network (VPN) sessions. You can set up filters by using IP

addresses, network port numbers (or a range of ports), or MAC addresses.

Setting Up Filters

• Filtered Private IP Range To set up a filter using IP addresses, enter the

range of IP addresses you wish to filter in the IP address fields. Users who have

filtered IP addresses will not be able to access the Internet at all. If you only

want to filter one IP address instead of a range of IP addresses, enter the same

value into both fields.

Advanced Filtering

Important: This is an Advanced Function. No changes should be made

to this tab without a thorough understanding of network concepts.

Figure 6-19

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Port Range Forwarding sets up public services on your network, such as web

servers, ftp servers, e-mail servers, or other specialized Internet applications.

(Specialized Internet applications are any applications that use Internet access

to perform functions such as videoconferencing or online gaming. Some

Internet applications may not require any forwarding.) When users send this

type of request to your network via the Internet, the Gateway will forward those

requests to the appropriate PC.

You may use this feature to establish a web server or FTP server for Internet

users to access. Be sure that you enter a valid IP address; you may need to

establish a static IP address with your ISP 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 be forwarded

through the Gateway instead. If you need to forward all ports to one PC, see the

“DMZ” section.

Forwarding

Important: This is an Advanced Function. No changes should be made

to this tab without a thorough understanding of network concepts.

• Filtered Private Port Range To filter users by network port number, enter a

network port number or a range of network ports. Select the protocol for each

port number you want to filter, TCP or UDP. Enter the port numbers you want

to filter in the port numbers fields. Users connected to the Gateway will no

longer be able to access any port number listed there.

Private MAC Filter

• Click the Edit MAC Filter Setting button to filter users by entering their

physical addresses.

In the MAC Filter Setting screen, enter the MAC addresses that you want to

filter in the MAC address fields. The users with the filtered MAC addresses

will not be able to access the Internet. Click the Apply button and the

Continue button, before closing the window.

Block WAN Requests

• This feature is designed to protect users from Internet hackers and other

attacks. When enabled, the Gateway will ignore both unknown TCP and

ICMP packets from the WAN side. By enabling the Block WAN Request fea-

ture, you can prevent your network from being “pinged,” or detected, by other

Internet users. The Block WAN Request feature also reinforces your network

security by hiding your network ports. Both functions of the Block WAN

Request feature make it more difficult for outside users to work their way into

your network.

Remote Management

• This feature allows you to manage or configure the Gateway from a remote

location, via the Internet. To enable management through the WAN connec-

tion, click Enable, and use port 8080 on the remote PC you are using for

remote management.

Remote Upgrade

• This feature allows you to upgrade the Gateway’s firmware from a remote

location. To enable Remote Upgrade, click Enable.

Telnet Configuration

• This feature enables or disables telnet access to the Gateway.

To clear any values you’ve entered on any page, click Cancel and re-enter

information. To apply any settings you’ve altered on any page, click the Apply

button. Once all settings are correct, click Continue. For more information on

this tab, you can click the Help button.

Figure 6-20

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

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With Dynamic Routing you can enable the Gateway to automatically adjust to

physical changes in the network’s layout. The Gateway, using the RIP protocol,

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 routers on the network. Select the RIP directions

and versions for the LAN and WAN sides.

RIP Direction

Determines the direction that RIP routes will be updated.

• None RIP is disabled.

• Both The Gateway will incorporate received RIP information and send out

updated RIP information.

• In Only The Gateway will only incorporate received RIP information.

• Out Only The Gateway will only send out RIP information.

Dynamic Routing

Figure 6-21

Important: This is an Advanced Function. No changes should be made

to this tab without a thorough understanding of network concepts.

To add a server using Port Range Forwarding:

1. Enter the name of the application in the appropriate Customized

Applications field. This field is a description field only.

2. Next to the name of the application, enter the range of the external port(s)

used by the server or Internet application in the Ext. Port column. Check

with the Internet application software documentation for more information.

3. Enter the IP address of the server that you want the Internet users to be

able to access. To find the IP address, go to “Appendix D: Finding the

MAC Address and IP Address for Your Ethernet Adapter.”

4. Configure as many entries as needed—the Gateway supports up to 11

ranges of ports. Click the Apply button and Continue button when you are

done.

To delete a server entry, enter 0 in the Ext. Port and IP Address fields.

To clear any values you’ve entered on any page, click Cancel and re-enter

information. To apply any settings you’ve altered on any page, click the Apply

button. Once all settings are correct, click Continue. For more information on

this tab, you can click the Help button.

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RIP Version

Select the version of IP you want to use.

• RIP-1 Routing data will be sent in RIPv1 format.

• RIP-2B Routing data will be sent in RIPv2 format using subnet broadcast-

ing.

• RIP-2M Routing data will be sent in RIPv2 format using multicasting.

• N/A Routing data will not be sent.

Click the Show Routing Table button to open a chart displaying how data is

routed through your LAN.

When finished making your changes on this tab, click the Apply button fol-

lowed by the Continue button to save these changes, or click the Cancel but-

ton to undo your changes. For further help on this tab, click the Help button.

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. You

can use static routing to allow different IP domain users to access the Internet

through the Gateway.

The Gateway is also capable of dynamic routing (see the Dynamic Routing

tab). It is usually better to use dynamic routing because it allows the Gateway

to automatically adjust to physical changes in the network’s layout.

To set up static routing, you should add routing entries in the Gateway’s table,

so the Gateway knows where to send all incoming packets.

To create a static route entry:

1. Select a Static Route Entry from the drop-down list. The Gateway sup-

ports up to eight static route entries.

Static Routing

Figure 6-22

Important: This is an Advanced Function. No changes should be made

to this tab without a thorough understanding of network concepts.

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The DMZ Hosting function allows for a server attached to Port 4 of the

Gateway to be fully accessible from the Internet. The Gateway supports an

Advanced form of DMZ, allowing the system attached to Port 4 to be on a

secure subnet, separate from the computers attached to the other 3 ports.

Port 4 Status Selecting DMZ

enables the advanced DMZ

function for the switched Port

4. Selecting LAN disables the

advanced DMZ function, and

Port 4 acts as a normal

switched port.

DMZ IP Address Enter the

IP Address that is assigned to

the Gateway’s Port 4. Enter the

Subnet Mask associated with the DMZ network.

Routing This setting is only applicable to the DMZ network.

RIP Direction Determines the direction that RIP routes will be updated.

• None RIP is disabled.

• Both The Gateway will incorporate received RIP information and send out

updated RIP information.

• In Only The Gateway will only incorporate received RIP information.

• Out Only The Gateway will only send out RIP information.

RIP Version Select the version of IP you want to use.

• RIP-1 Routing data will be sent in RIPv1 format.

• RIP-2B Routing data will be sent in RIPv2 format using subnet broad-

casting.

• RIP-2M Routing data will be sent in RIPv2 format using multicasting.

• N/A Routing data will not be sent.

When finished making your changes on this tab, click the Apply button fol-

lowed by the Continue button to save these changes, or click the Cancel but-

ton to undo your changes. For further help on this tab, click the Help button.

DMZ Host

Figure 6-23

Important: This is an Advanced Function. No changes should be made

to this tab without a thorough understanding of network concepts.

2. Enter the following data to create a new static route.

Destination LAN IP: The Destination LAN IP 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 here. 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 0.

Subnet Mask: The Subnet Mask (also known as the Network Mask) iden-

tifies which portion of an IP address is the network portion, and which por-

tion is the host portion. For a full Class C Subnet, the Subnet Mask is

255.255.255.0.

Gateway IP: This IP address should be the IP address of the gateway

device that allows for contact between the Gateway and the remote network

or host.

Hop Count: This determines the maximum number of steps between net-

work nodes that data packets will travel. A node is any device on the net-

work, such as PCs, print servers, routers, etc.

From the Static Routing tab, click the Show Routing Table button to view the

current static routing configuration.

To delete a Static Routing entry, select an entry, and click the Delete This

Entry button.

When finished making your changes on this tab, click the Apply button fol-

lowed by the Continue button to save these changes, or click the Cancel but-

ton to undo your changes. For further help on this tab, click the Help button.

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

The Link Test page allows an advanced user or technician to perform advanced

diagnostics of the ADSL Gateway and perform connectivity tests.

The information provided by these tests is not discussed in this document.

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Link Test

Figure 6-25

Important: This is an Advanced Function. No changes should be made

to this tab without a thorough understanding of network concepts.

The Firewall screen allows you to enable the advanced firewall functions of the

Gateway, so it can use Stateful Packet Inspection (SPI) to automatically detect

and block Denial of Service (DoS) and hacker attacks. Also, you can enable the

Gateway to maintain a security log, which can be viewed by clicking the Show

Firewall Log Table button. The security log can also be e-mailed to a specific

address, whose information should be entered in the Address Info setting.

• Firewall Service Enable or disable the advanced firewall functions.

• Address Info You can specify that the security log be e-mailed to a specific

address by completing the Mail Server, Mail Subject, Email Alert To, and

Return Address fields.

• Log Timer Depending on how often you want the security log e-mailed,

complete the Log Schedule, Day for Sending Alerts, and/or Time for Sending

Alerts fields.

Click the Show Firewall Log Table button to view the security log.

When finished making your changes on this tab, click the Apply button fol-

lowed by the Continue button to save these changes, or click the Cancel but-

ton to undo your changes. For further help on this tab, click the Help button.

Firewall

Figure 6-24

Important: This is an Advanced Function. No changes should be made

to this tab without a thorough understanding of network concepts.

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Make sure that you do NOT have a microfilter plugged in between the

Gateway and the wall jack. Verify that your ADSL account is active with

your ISP.

5. I can’t browse through the Gateway.

• Check if both ends of the network cable and power adapter are properly

connected. Check if the status LEDs on the front panel are functioning

properly.

• If using Windows 95, 98 or Millennium, check the TCP/IP setup on the

client side. Run winipcfg by clicking on the Start button, selecting Run,

and typing winipcfg in the Run field. Press Enter. The PC should have

an IP address of 192.168.1.xxx (“xxx” is from 2 to 254.). The Subnet

Mask is 255.255.255.0; the default gateway IP should be the Gateway’s IP

Address, and check that the DNS is correct.

• Check the same setup values in the Gateway’s Status page.

6. When I enter a URL or IP address, I get a time out error.

• Check to see if your other PCs work. If they do, verify that your PC’s IP

settings are correct (IP address, Subnet Mask, Default Gateway, and

DNS)

• If the PCs are configured correctly, but still not working, check the

Gateway. Make sure that it is connected and ON. Connect to it and check

its settings. (If you cannot connect to it, check the LAN and power con-

nections.)

• If the Gateway is configured correctly, check your Internet connection to

see that it is working correctly.

• Manually configure the TCP/IP with a DNS address provided by your ISP.

7. I can’t obtain an IP address from my ADSL line.

• Verify that all of your cabling is properly connected and that all of the

Gateway’s ADSL and Link LEDs are correctly illuminated.

• Power down your Gateway for a few seconds. Turn it back on. After the

Gateway goes through its self-test, check to see if you now have an IP

address.

• Verify that the VPI/VCI and Encapsulation settings are correct in the

Setup page of the Web-based Utility. Go to the Setup section of the Web-

based Utility chapter for more information.

• If you are configured for PPPoE or PPPoA, verify that the username and

password are entered correctly in the Setup page of the Web-based Utility.

Go to the Setup section of the Web-based Utility chapter for more infor-

mation.

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Appendix A:Troubleshooting

This section provides possible solutions to problems regarding the Gateway’s

installation and operation. If your situation is described here, the problem

should be solved by applying the corresponding solution. If you can’t find an

answer here, check the Linksys website at www.linksys.com.

1. The Gateway is not working.

• Verify that the Power cord and other network cables are plugged in.

• Check the LAN and WAN LEDs on the Gateway’s front and verify that

they are lit appropriately.

• Check the settings on your PC.

• Check the Gateway’s settings.

2. I can’t connect to the Gateway.

• Verify that the Gateway is properly installed; LAN connections are OK,

and it is powered ON.

• Make sure that your PC and the Gateway are on the same network seg-

ment. If you are not sure, initiate the DHCP function, and let the PC get

the IP address automatically.

• Make sure that your PC is using an IP address within the default range of

192.168.1.2 to 192.168.1.254 and thus compatible with the Gateway

default IP Address of 192.168.1.1

• Also, the Subnet Mask should be set to 255.255.255.0 to match the

Gateway. For the Gateway, you can check these settings by using Control

Panel-Network to check the Properties for the TCP/IP protocol.

3. The Diag LED stays lit when it shouldn’t.

• The Diag LED lights up when the device is first powered up. Meantime,

the system will boot up itself and check for proper operation. After fin-

ishing the checking procedure, the LED turns off to show the system is

working fine. If the LED remains lit after this time, the device is not

working properly. Try to re-flash the firmware by assigning a static IP

address to the computer, and then upgrade the firmware again. If that

doesn’t help, contact your dealer for further inspection.

4. The ADSL Link LED will not go solid.

• Verify that the RJ-11 cable is firmly plugged into the ADSL jack of the

Gateway, with the other end plugged directly into the ADSL wall jack.

Common Problems and Solutions

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

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I set up an Unreal Tournament Server, but others on the LAN cannot join. What do

I need to do? If you have a dedicated Unreal Tournament server running, you

need to create a static IP for each of the LAN computers and forward ports

7777, 7778, 7779, 7780, 7781, and 27900 to the IP address of the server. You

can also use a port forwarding range of 7777 ~ 27900. If you want to use the

UT Server Admin, forward another port (8080 usually works well but is used

for remote admin. You may have to disable this.), and then in the

[UWeb.WebServer] section of the server.ini file, set the ListenPort to 8080 (to

match the mapped port above) and ServerName to the IP assigned to the

Gateway from your ISP.

Can multiple gamers on the LAN get on one game server and play simultaneously

with just one public IP address? It depends on which network game or what

kind of game server you are using. For example, Unreal Tournament supports

multi-login with one public IP.

How do I get

Half-Life:Team Fortress

to work with the Gateway? The default client

port for Half-Life is 27005. The computers on your LAN need to have

“+clientport 2700x” added to the HL shortcut command line; the x would be

6, 7, 8, and on up. This lets multiple computers connect to the same server.

One problem: Version 1.0.1.6 won’t let multiple computers with the same CD

key connect at the same time, even if on the same LAN (not a problem with

1.0.1.3). As far as hosting games, the HL server does not need to be in the

DMZ. Just forward port 27015 to the local IP address of the server computer.

The web page hangs; downloads are corrupt, or nothing but junk characters are

being displayed on the screen. What do I need to do? Force your Ethernet

adapter to 10Mbps or half duplex mode, and turn off the “Auto-negotiate”

feature of your Ethernet adapter as a temporary measure. (Please look at the

Network Control Panel in your Ethernet adapter’s Advanced Properties tab.)

Make sure that your proxy setting is disabled in the browser. Check our web-

site at www.linksys.com for more information.

If all else fails in the installation, what can I do? Reset the Gateway by holding

down the reset button until the Diag LED fully turns on and off. Obtain and

flash the latest firmware release that is readily available on the Linksys web-

site, www.linksys.com.

How will I be notified of new Gateway firmware upgrades? All Linksys firmware

upgrades are posted on the Linksys website at www.linksys.com, where they

can be downloaded for free. The Gateway’s firmware can be upgraded with

TFTP programs.

What is the maximum number of IP addresses that the Gateway will support? The

Gateway will support up to 253 IP addresses.

Is IPSec Pass-Through supported by the Gateway?Yes, it is a built-in feature that

the Gateway automatically enables.

Does the Gateway support IPX or AppleTalk? No. TCP/IP is the only protocol

standard for the Internet and has become the global standard for communica-

tions. IPX, a NetWare communications protocol used only to route messages

from one node to another, and AppleTalk, a communications protocol used on

Apple and Macintosh networks, can be used for LAN to LAN connections,

but those protocols cannot connect from WAN to LAN.

What is Network Address Translation and what is it used for? Network Address

Translation (NAT) translates multiple IP addresses on the private LAN to one

public address that is sent out to the Internet. This adds a level of security

since the address of a PC connected to the private LAN is never transmitted

on the Internet. Furthermore, NAT allows the Gateway to be used with low

cost Internet accounts, when only one TCP/IP address is provided by the ISP.

The user may have many private addresses behind this single address provid-

ed by the ISP.

Does the Gateway support any operating system other than Windows 95,Windows

98, Windows 2000, Windows NT, or Windows XP? Yes, but Linksys does not, at

this time, provide technical support for setup, configuration or troubleshoot-

ing of any non-Windows operating systems.

Does the Gateway support ICQ send file? Yes, with the following fix: click ICQ

menu -> preference -> connections tab->, and check I am behind a fire-

wall or proxy. Then set the firewall time-out to 80 seconds in the firewall set-

ting. The Internet user can then send a file to a user behind the Gateway.

How do I get Napster to work with the Gateway? Napster is fully compatible with

the Gateway, but you must make sure that, during installation, you select “no

idea” when asked about your firewall selection. Set your proxy settings to

“No Proxy Server” in your File>Preferences.

Frequently Asked Questions

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

What are the Gateway’s advanced features? The Gateway’s advanced features

include Filters, Forwarding, Dynamic Routing, Static Routing, and DMZ

host.

Does Linksys provide syslog support? No, Linksys does not currently provide

syslog support.

How can I check whether I have static or dynamic IP Addresses? Consult your

ISP to confirm the information.

How do I get mIRC to work with the Gateway? Set port forwarding to 113 for the

computer on which you are using mIRC. If you are experiencing difficulty

after setting the port forwarding, try changing the Direct Client-to-Client

(DCC) settings to a range from 1024 to 1030 on the DCC option and

Forwarding page of the Web-based Setup Utility.

Can I guess my encapsulation type and VPI/VCI? These settings are dependent on

your telephone company, ADSL ISP, service level, and when your line was

installed. It is typically not something that can be guessed or found through

trial and error. It is best to contact your ISP to find these settings.

Will this product work on an SDSL, IDSL or ISDN line? No, those types of lines are

not ADSL technologies. The BEFDSR41W will only work on ADSL lines

that support the T1.413i2, G.992.1 (G.dmt), or G.992.2 (G.lite) standards.

If your questions are not addressed here, refer to the contact information

on the last page of this manual, or online at support.linksys.com.

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Will the Gateway function in a Macintosh environment? Yes, but the Gateway’s

setup pages are accessible only through Internet Explorer v4.0 or Netscape

Navigator v4.0 or higher for Macintosh. NOTE: Linksys does not provide

technical support for Macintosh computers.

With which type of firewall is the Gateway equipped? The Gateway uses NAT and

TCP/IP port inspections. It also has SPI (Stateful Packet Inspection).

Does the Gateway do Stateful Packet Inspection? Yes. Enable the Firewall func-

tion of the Gateway.

I am not able to access the Gateway’s web configuration screen. What can I do?

You may have to remove the proxy settings on your Internet browser, e.g.,

Netscape Navigator or Internet Explorer. Or remove the dial-up settings on

your browser. Check with your browser documentation.

What is DMZ? Demilitarized Zone (DMZ) allows one IP address (computer) to

be exposed to the Internet. Some applications require multiple TCP/IP ports

to be open. It is recommended that you set your computer with a static IP if

you want to use DMZ.

If DMZ is used, does the exposed user share the public IP with the Gateway? No.

Does the Gateway pass PPTP packets or actively route PPTP sessions? The

Gateway allows PPTP packets to pass through.

Is the Gateway cross-platform compatible? Any platform that supports Ethernet

and TCP/IP is compatible with the Gateway.

Will the Gateway allow me to use my own public IPs and Domain, or do I have to

use the IPs provided by the Gateway? The Gateway allows for customization

of your public IPs and Domain.

How many ports can be simultaneously forwarded? Theoretically, the Gateway

can establish 520 sessions at the same time, but you can only forward 10

ranges of ports.

Does the Gateway replace a modem? Is there a DSL modem in the Gateway? Yes.

The Gateway has an integrated ADSL modem, so this product will replace

your current ADSL modem.

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1. At the Wireless Screen, if you choose to enable WEP Encryption, select

Mandatory under the WEP section.

2. Press the WEP Key Setting button to set the WEP Encryption type and

level.

3. The following screen may appear, verifying that you are enabling WEP

Encryption. Press the OK button to continue.

Figure B-2

Figure B-1

Appendix B:Configuring

Wireless Security

An acronym for Wired Equivalent Privacy, WEP is an encryption scheme used

to protect your wireless data communications. WEP uses a combination of 64-

bit or 128-bit keys to provide access control to your network and encryption

security for every data transmission. To decode a data transmission, each point

in a network must use an identical 64-bit or 128-bit key. Higher encryption lev-

els mean higher levels of security, but due to the complexity of the encryption,

they may mean decreased network performance.

You may also have heard the term “40-bit” used in conjunction with WEP

Encryption. This is simply another term for 64-bit WEP encryption. This level

of WEP encryption has been called 40-bit because it uses a 40-bit secret key

along with a 24-bit Initialization Vector (40 + 24 = 64). Wireless vendors may

use either name. Linksys uses the term “64-bit” when referring to this level of

encryption.

If possible, make sure your wireless network is functioning before attempting

to configure WEP.

A 128-bit WEP encrypted wireless network will NOT communicate with a 64-

bit WEP encrypted wireless network. Therefore, make sure that all of your

wireless devices are using the same encryption level. All wireless devices com-

plying with the 802.11b standard will support 64-bit WEP.

In addition to enabling WEP, Linksys also recommends the following security

implementations:

• Changing the SSID from the default “linksys”

• Changing the WEP key regularly

Note: WEP Encryption is an additional data security measure and

not essential for Gateway operation.

Note: In order for WEP Encryption to be enabled, wireless functions must first

be enabled. Select Enable under the Wireless section before proceeding.

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

WEP Encryption key can be generated in one of two ways:

1. You may create an encryption key by using a Passphrase.

a. Enter a Passphrase, a user-defined password, into the Passphrase field.

The Passphrase can be a maximum of 31 letters, symbols, and numbers.

No spaces can be used.

b. Click the Generate button to create a key. The key will be 10 digits if

you chose 64-bit encryption, or 26 digits if you chose 128-bit encryp-

tion. This key will be used to encrypt and decrypt the data being sent

between the Gateway and your network’s wireless PCs.

The Key field may not display all digits. Using the mouse, click any-

where within the Key field. Move the cursor to the right to view the rest

of the Key. Make sure your write down the entire Key EXACTLY the

way it is displayed.

2. You may enter the encryption key manually.

Make a note of the Passphrase or Manual Key. You will need it for other wire-

less devices on the network, as the same WEP encryption key must be entered

in all wireless devices on the network.

Once you have chosen your key encryption method and entered either the

Passphrase or manual key, click the Apply button, and the encryption portion

of the setup is complete.

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4. The following screen will appear, where you will choose your WEP

Encryption settings.

• WEP (64Bit or 128B) Select the level of encryption from the drop-down

box. 128-bit WEP encryption is unique to Linksys and may conflict with

other vendors’WEP encryption.

Note: In Windows XP, a 128-bit Key generated by the Gateway will be called a

"104 bits (26 digits)" key, and a 64-bit Key generated by the Gateway will be

called a “40 bits (10 digits)” key.

Figure B-3

Note: In order to utilize WEP encryption, all points in your wireless network

must have WEP enabled and be set to the same Key Setting.

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

2. In the “Control Panel” window, click the Network and Internet

Connections icon.

3. Click on the Network Connections icon.

4. The “Network Connections” window will appear. Under LAN or High-

Speed Internet you will see all Network cards that are installed and operat-

ing in your computer. Double-click the Wireless Network Connection

icon associated with your wireless adapter.

If the “Wireless Network Connection Status” window appears, continue to

the next step.

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As Windows XP does not allow for the use of the Linksys Passphrase feature

with the wireless PC adapters, you will need to manually enter the key gener-

ated in the previous section.

The following steps will help you enable WEP and enter the encryption key

manually for your wireless PC cards, in order to enable your Windows XP sys-

tem to communicate with the Gateway wirelessly.

These steps assume that your CD-ROM drive is letter D and that you are run-

ning Windows XP in the default mode.

Be sure you have the WEP Key generated by the Gateway.

1. Click the Start button and go to the Control Panel.

Figure B-5

Figure B-6

Configuring Wireless Security in Windows XP

Figure B-4

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6. When the “Wireless Network Connection Properties” window appears,

click the Wireless Networks Tab.

7. If the appropriate wireless network, specified by the Gateway’s SSID, is

displayed in the “Preferred networks” section, double-click it and continue

to the next step.

Otherwise, click on the appropriate wireless network, specified by the

Gateway’s SSID, in the “Available networks” section. Then, click the

Configure button.

Figure B-9

Figure B-10

If a “Connect to Wireless Network” window appears, in the Available

Networks section, click the desired wireless network, specified by the

Gateway’s SSID. Then, double-click the Wireless Network Connection

icon.

5. When the “Wireless Network Connection Status” window appears, click the

Properties button.

Figure B-7

Figure B-8

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Appendix C:Installing the

TCP/IPProtocol

Follow these instructions to install the TCP/IP protocol on one of your PCs only

after a network card has been successfully installed inside the PC. These

instructions are for Windows 95, Windows 98, and Windows Me. For TCP/IP

setup under Windows NT, 2000, and XP, see your Windows manual.

1. Click the Start button. Choose Settings and then Control Panel.

2. Double-click on the Network icon to bring up your Network window.

Select the Configuration tab.

3. Click the Add button.

4. Double-click on Protocol.

5. Highlight Microsoft under the list of manufacturers.

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Figure C-1

8. The “Wireless Network Properties” window will appear.

Click the check box for the Data encryption (WEP enabled) option.

Remove the check from the Network Authentication (Shared mode) and

The key is provided for me automatically fields.

In the "Network key" field, enter the exact Key (all 10 or 26 digits, depend-

ing on the level of encryption) generated by the Gateway.

Verify that the “Key format” field displays “Hexadecimal digits” and that

the “Key length” field displays either “40 bits (10 digits)” or “104 bits (26

digits)”. If this is not displayed, you have entered the key incorrectly.

Click the OK button to save the settings. Click on OK buttons until you

get back to the “Wireless Network Connection Status” window. Close any

open windows to get back to the Windows XP desktop.

Close any applications and reboot your PC. After reboot, WEP configuration

is complete and you should be able to connect wirelessly to the Gateway.

Figure B-11

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Appendix D:Finding the MAC

Address and IPAddress for Your

Ethernet Adapter

This section describes how to find the MAC address for your Ethernet adapter

to do either MAC Filtering for the Gateway and ISP. You can also find the IP

address of your computer’s Ethernet adapter. The IP address is used for filter-

ing. Follow the steps in this appendix to find the MAC address or IP address

for your adapter in Windows 95, 98, Me, NT, 2000, and XP.

For Windows 95, 98, and Me:

1. Click on Start and Run. In the Open field, enter winipcfg. Then press the

Enter key or the OK button.

2. When the IP Configuration window appears, select the Ethernet adapter

you are using to connect to the Gateway via a CAT 5 Ethernet cable.

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6. Find and double-click TCP/IP in the list to the right (see Figure C-2).

7. After a few seconds, the main Network window will appear. The TCP/IP

Protocol should now be listed.

8. Click the OK button. Windows may ask for original Windows installation

files. Supply them as needed, e.g., c:\windows\options\cabs, D:\win98,

D:\win95.

9. Windows will ask you to restart the PC. Click the Ye s button.

The TCP/IP installation is now complete.

Figure D-1

Figure D-2

Figure C-2

Figure C-3

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

2. In the command prompt, enter ipconfig /all. Then press the Enter key.

3. Write down the Physical Address as shown on your computer screen; it is

the MAC address for your Ethernet adapter. This will appear as a series of

letters and numbers.

The MAC address/Physical Address is what you will use for MAC

Filtering.

The example in Figure D-5 shows the IP address of your Ethernet adapter

as 192.168.1.100. Your computer may show something different.

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3. Write down the Adapter Address as shown on your computer screen (see

Figure D-3). This is the MAC address for your Ethernet adapter and will

be shown as a series of numbers and letters.

The MAC address/Adapter Address is what you will use for MAC

Filtering.

The example in Figure D-3 shows the IP address of your Ethernet adapter

as 192.168.1.100. Your computer may show something different.

For Windows NT, 2000, and XP:

The following steps show an alternative way of obtaining the MAC address and

IP address for your Ethernet adapter.

1. Click on Start and Run. In the Open field, enter cmd. Press the Enter key

or click the OK button.

Figure D-5

Note: The MAC address is also called the Physical

Address.

Figure D-3

Figure D-4

Note: The MAC address is also called the Adapter

Address.

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When entering the information using the Router’s web-based utility, you will

type the 12-digit MAC address in this format, XXXXXXXXXXXX without

the hyphens for MAC Filtering.

Appendix E:Specifications

Standards: ANSI T1.413i2, ITU-T G.dmt (G.992.1), ITU G.lite

(G992.2), PC Card 16-bit standard, IEEE 802.3

(10BaseT), IEEE 802.3u (100BaseTX), IEEE 802.11b

(Wireless)*

Protocols: RFC 1483, RFC 2364 PPPoA, RFC 2516 PPPoE

Ports/Switches/Buttons:

ADSL: RJ-11 ADSL Port

LAN: Four 10/100 RJ-45 Switched Ports

PCMCIA: Type II Slot (for use with Linksys WPC11 only)

Switch: On/Off

Button: Reset

Speed:

ADSL: 8 Mbps downstream, 800 kbps upstream

LAN: 10/100 Mbps (Half/Full Duplex)

Wireless*: Up to 11 Mbps

Cabling Type:

ADSL: Standard Telephone Cable

LAN: UTP Category 5 or better

LEDs: Power, Diag

ADSL: Session, Link, Act

LAN: 100, Full/Col, Link/Act

WLAN: Link, Act

* Requires Optional WPC11 (sold separately) for

Wireless Connectivity

Figure D-6

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Appendix F:Warranty Information

BE SURE TO HAVE YOUR PROOF OF PURCHASE AND A BARCODE

FROM THE PRODUCT’S PACKAGING ON HAND WHEN CALLING.

RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF

PURCHASE.

IN NO EVENT SHALL LINKSYS’S LIABILITY EXCEED THE PRICE

PAID FOR THE PRODUCT FROM DIRECT, INDIRECT, SPECIAL, INCI-

DENTAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE

USE OF THE PRODUCT, ITS ACCOMPANYING SOFTWARE, OR ITS

DOCUMENTATION. LINKSYS DOES NOT OFFER REFUNDS FOR ANY

PRODUCT.

LINKSYS OFFERS CROSS SHIPMENTS, A FASTER PROCESS FOR PRO-

CESSING AND RECEIVING YOUR REPLACEMENT. LINKSYS PAYS

FOR UPS GROUND ONLY. ALL CUSTOMERS LOCATED OUTSIDE OF

THE UNITED STATES OF AMERICA AND CANADA SHALL BE HELD

RESPONSIBLE FOR SHIPPING AND HANDLING CHARGES. PLEASE

CALL LINKSYS FOR MORE DETAILS.

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Dimensions: 7.32" x 6.06" x 2.52" (186 mm x 154 mm x 62 mm)

Unit Weight: 14.4 oz. (0.40 kg)

Power: External, 12V AC, 1.25 A

Certifications: FCC Class B, Part 68, CE Mark

Operating Temp.: 0ºC to 40ºC (32ºF to 104ºF)

Storage Temp.: 0ºC to 60ºC (32ºF to 140ºF)

Operating Humidity: 10% to 85%, Non-Condensing

Storage Humidity: 10% to 90%, Non-Condensing

Environmental

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Appendix G:Contact Information

For help with the installation or operation of your ADSL Gateway with Modem

/ Router / 4-Port Switch / Wireless-Ready, contact Linksys Technical Support

at one of the phone numbers or Internet addresses below.

Sales Information 800-546-5797 (1-800-LINKSYS)

Technical Support 800-326-7114 (toll free from U.S. or Canada)

949-271-5465 (6:00 am to 5:00 pm PST)

RMA Issues 949-271-5461

Fax 949-265-6655

Email support@linksys.com

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8382

Instant Broadband

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Series ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Linksys BEFDSR41W ADSL Gateway Handleiding

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