Linksys BEPSR31, BEPSR41, BEPSR11 User Manual

Instant Broadband™ Series

Cable/DSLRouters

Use this guide to install the following products:

BEFSR41 ver. 2 EtherFast®Cable/DSL Router with 4-Port Switch
BEFSRU31 EtherFast®Cable/DSL Router with USB Port and 3-Port Switch
BEFSR11 ver. 2 EtherFast®1-Port Cable/DSL Router

User Guide

COPYRIGHT & TRADEMARKS
Copyright © 2002 Linksys, All Rights Reserved. Linksys and EtherFast are registered
trademarks of Linksys. Instant Broadband is a trademark of 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 EtherFast Cable/DSL Router will be
free from physical defects in material and workmanship 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 customers located outside of the United States
of America and Canada shall be held responsible for shipping and handling charges.

IN NO EVENT SHALL LINKSYS’S LIABILITY EXCEED THE PRICE PAID FOR THE PROD­UCT FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAM­AGES RESULTING FROM THE USE OF THE PRODUCT, ITS ACCOMPANYING SOFT­WARE, OR ITS DOCUMENTATION. LINKSYS OFFERS NO REFUNDS FOR ITS PROD­UCTS. 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 accom­panying software, and specifically disclaims its quality, performance, merchantability, or
fitness for any particular purpose. Linksys reserves the right to revise or update its prod­ucts, 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 STATEMENT

The Instant Broadband EtherFast Cable/DSL Router has been tested and complies with
the specifications for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses, and can radiate radio fre­quency energy and, if not installed and used according to 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 is found 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 or devices

• Connect the equipment to an outlet other than the receiver’s

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

UG-BEFSR11/41/U31-AOL-091402NC-KL

EtherFast®Cable/DSL Routers

Chapter 7: Configure the PCs 35

Overview 35
Configuring Windows 95, 98, and Millennium PCs 36
Configuring Windows 2000 PCs 38
Configuring Windows XP PCs 40

Chapter 8: Configure the Router 42

Chapter 9: The Cable/DSL Router’s
Web-based Utility 47

Overview 47
Quick and Easy Router Administration 47
Setup 48
Password 54
Status 55
DHCP 56
Log 58
Security 59
Help 61
Advanced 62
IP Filtering 63
Port Range Forwarding 65
Dynamic Routing 70
Static Routing 71
DMZ Host 73
MAC Address Clone 74

Appendix A: Troubleshooting 75

Common Problems and Solutions 75
Frequently Asked Questions 88

Appendix B: Glossary 92

Appendix C: How to Ping Your ISP’s E-mail &
Web Addresses 105

Appendix D: Installing the TCP/IP Protocol 108

Instant Broadband™Series

Table of Contents

Chapter 1: Introduction 1

The Linksys EtherFast Cable/DSL Router 1
Features 1
Package Contents for the 4-Port Router (BEFSR41) 2
Minimum Requirements 2
Package Contents for the 1-Port Router (BEFSR11) 3
Minimum Requirements 3
Package Contents for the 3-Port Router with USB (BEFSRU31) 4
Minimum Requirements 4
An Introduction to LANs and WANs 4
IP Addresses 5
Network Setup Overview 7

Chapter 2: Getting to Know the 4-Port
EtherFast Cable/DSL Router 8

The 4-Port Router’s Rear Panel 8
The 4-Port Router’s Front Panel LEDs 9

Chapter 3: Getting to Know the 1-Port
EtherFast Cable/DSL Router 11

The 1-Port Router’s Rear Panel 11
The 1-Port Router’s Front Panel LEDs 12

Chapter 4: Getting to Know the 3-Port
EtherFast Cable/DSL Router 14

The 3-Port Router’s Rear Panel 14
USB Compatibility 15
The 3-Port Router’s Front Panel LEDs 16

Chapter 5: Connect the Router 18

Overview 18
Connecting Your Hardware Together and Booting Up 19
Uplinking: Connecting More Devices to the Router 21

Chapter 6: Installing the BEFSRU31’s USB
Port Drivers 22

Installing the Windows 98 Driver 22
Installing the Windows 2000 Driver 27
Installing the Windows Millennium Driver 31
Installing the Windows XP Driver 33

Instant Broadband™Series

EtherFast®Cable/DSL Routers

Chapter 1: Introduction

The Linksys EtherFast®Cable/DSL Router

Congratulations on the purchase of the EtherFast Cable/DSL Router from
Linksys! The Router is the perfect solution for connecting a network of PCs to
a high-speed broadband Internet connection and to an Ethernet network back­bone. Configurable as a DHCP server for your network, the Router is the only
visible network device on the Inter net. The Router also serves as your Internet
NAT firewall, protecting your network’s PCs from being accessed by external
users. All incoming data packets are monitored and filtered. The Router can
also be configured to block internal users’ access to the Internet with IP f ilter­ing, as well as to play Internet games, videoconference, and much more. Plus,
the Router supports Universal Plug and Play (UPnP), which allows Windows
XP to automatically configure the Router for various Internet applications,
such as videoconferencing and gaming—making the Router a snap to use.

Now all of your PCs can enjoy lightning-fast broadband Inter net connections
and share internal network data. Link them all together and netw ork faster than
you ever thought possible.

• Connects Your Cable or DSL Modem to Multiple Computers for Internet,

File, and Printer Sharing

• Set Up Your Computers and Router Easily Using Linksys Setup Wizard

• Suppor ts UPnP for Easy Network Conf iguration

• Suppor ts Enhanced Security Using NAT Firewall and ZoneAlarm Pro* and

PC-cillin Software*

• Access Your Network Remotely over the Internet through Virtual Private

Networking (VPN)—Supports IPSec and PPTP Pass-Through

• Easily Configurable through a Web Browser—Locally and over the Internet

• Administer and Upg rade the Router Remotely over the Internet

• Advanced Security Management Functions for Port Filtering, MAC Address

Filtering, and DMZ Hosting

• 3- or 4-Port, 10/100 Mbps, Built-in Switch Speeds Up Your Gaming and

Multimedia Experience (BEFSRU31 & BEFSR41 ver. 2 only)

• Configurable as a DHCP Server on Your Network

* each sold separately

Appendix E: Twisted-Pair Cabling 110

Crimping Your Own Network Cables 111

Appendix F: Finding the MAC Address and IP
Address for Your Ethernet Adapter 112

Appendix G: Setting Up AOL

®

Broadband Cable & DSL 116

AOL Broadband via Cable 116
AOL Broadband via DSL 118

Appendix H: 4-Port Router Specifications 119

4-Port Environmental Specifications 119

Appendix I: 1-Port Router Specifications 120

1-Port Environmental Specifications 120

Appendix J: 3-Port Router Specifications 121

3-Port Environmental Specifications 121

Appendix K: Warranty Information 122

Appendix L: Contact Information 123

1

The Linksys EtherFast Cable/DSL Router

Features

EtherFast®Cable/DSL Routers

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Instant Broadband™Series

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Package Contents for the 1-Port Router (BEFSR11)

• One EtherFast 1-Port Cable/DSL Router

• One Setup Wizard CD-ROM with User Guide Included

• One Power Adapter

• One Fast Start Guide

• One Registration Card (not shown)

• One Windows PC equipped with:

• TCP/IP Protocol,

• Internet Explorer 4.0 or Netscape Navigator 4.7 for web-based
configuration,

• a CD-ROM Drive, and

• an Ethernet Adapter with a UTP CAT 5 Network Cable

• Cable or DSL Modem with Ethernet Connection and Internet Access

Package Contents for the 1-Port Router (BEFSR11)

• One EtherFast Cable/DSL Router with 4-Port Switch

• One Setup Wizard CD-ROM with User Guide Included

• One Power Adapter

• One Fast Start Guide

• One Registration Card (not shown)

• One Windows PC equipped with:

• TCP/IP Protocol,

• Internet Explorer 4.0 or Netscape Navigator 4.7 for web-based
configuration,

• a CD-ROM Drive, and

• an Ethernet Adapter with a UTP CAT 5 Network Cable

• Cable or DSL Modem with Ethernet Connection and Internet Access

Package Contents for the 4-Port Router (BEFSR41)

Minimum Requirements

Minimum Requirements

Figure 1-1

Figure 1-2

EtherFast®Cable/DSL Routers

The Router’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 Router 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 Router inspects Internet port services like the web server,
ftp server, or other Internet applications, and, if allowed, it will forward the
packet to the appropriate PC on the LAN side.

Remember that the Router’s ports connect to two sides: your 10/100 LAN
port(s) and the Internet WAN port. The LAN port(s) transmit data at 10 Mbps
or 100 Mbps, whereas the broadband port, or WAN port, transmits data at
10 Mbps.

What’s an IP Address?

IP stands for Inter net 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 f ixed IP address that you assign manually to a PC or
other device on the network. Since a static IP address remains valid until you
disable it, static IP addressing ensures that the device assigned it will always
have that same IP address until you change it. Static IP addresses are com­monly used with network devices such as ser ver PCs or print servers.

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Instant Broadband™Series

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• One EtherFast Cable/DSL Router with USB Port & 3-Port Switch

• One Setup Wizard CD-ROM with User Guide Included

• One USB Cable

• One 3.5" Floppy Disk for USB Setup

• One Power Adapter

• One Fast Start Guide

• One Registration Card (not shown)

• Inter net Explorer 4.0 or Higher (5.5 Recommended), or Netscape Navigator

4.7 or Higher

• TCP/IP Protocol, Ethernet Adapter, and Ethernet Cable (UTP CA T 5 with RJ-

45 connectors) per PC

• One Exter nal Cable or DSL Modem with Ethernet Port and Ethernet Cable

(UTP CAT 5 with RJ-45 connectors)

Simply put, a router is a network device that connects two networks together.
In this instance, the Router 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 Router processes and regulates the data that travels
between these two networks.

Think of the Router 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.

Package Contents for the 3-Port Router (BEFSRU31)

Minimum Requirements

Figure 1-3

An Introduction to LANs and WANs

IP Addresses

Note: Since the Router 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 Router has firewall security (NAT), the only IP address that
can be seen from the Internet for your network is the Router’s WAN IP
address.

However, even this WAN IP address for the Router can be blocked, so
that the Router and network seem invisible to the Internet—see the
Blocking WAN Requests description under IP Filtering in “Chapter 9:
The Cable/DSL Router’s Web-based Utility.”

This user guide covers the basic steps for setting up a network with a router.
After going through the appropriate “Getting to Know the Router” chapter
(Chapter 2, 3, or 4, depending on which Router you ha ve), most users will only
need to use the following chapters:

• Chapter 5: Connect the Router

This chapter instructs you on how to connect the cable or DSL modem to the
Router and connect the PC(s) to the Router.

• Chapter 7: Configure the PCs

This chapter instructs you on how to configure your PC(s) for a DHCP con­nection, if the network settings are not already set to DHCP.

• Chapter 8: Configure the Router

This chapter explains how to configure the Router using your web browser
and the Router’s web-based utility. You will conf igure the Router 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 Router, you can
alter the Router’s settings further; for example, you can adjust security features
and other settings to enable
online gaming.

EtherFast®Cable/DSL Routers

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Instant Broadband™Series

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

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

DHCP (Dynamic Host Configuration Protocol) Servers

PCs and other network devices using dynamic IP addressing are assigned a ne w
IP address by a DHCP server. The PC or network device obtaining an IP
address is called the DHCP client. DHCP frees you from having to assign IP
addresses manually every time a new user is added to your network.

A DHCP server can either be a designated PC on the network or another net­work device, such as the Router. By default, the Router’s WAN setting is DHCP
client.

By default, a DHCP server (LAN side) is enabled on the Router. If y ou already
have a DHCP server running on your network, you must disable one of the two
DHCP servers. If you run more than one DHCP server on your network, you
will experience network errors, such as conflicting IP addresses. To disable
DHCP on the Router, see the DHCP section in “Chapter 9: The Cable/DSL
Router’s Web-based Utility.”

6

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

Cable or DSL

Modem

Cable/DSL Router

PC with Ether net Adapter

Notebook with Ether net Adapter

WAN

LAN

Figure 1-4

Note: To learn about additional security
features, ZoneAlarm Pro and PC-cillin
(each sold separately), see “Chapter 9: The
Cable/DSL Router’s Web-based Utility.”

EtherFast®Cable/DSL Routers

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Instant Broadband™Series

8

Power Green. The Power LED lights up when the Router is powered

on.

Link/Act Green. The Link/Act LED ser ves two purposes. If the LED

is continuously lit, the Router is successfully connected to a
device through the corresponding port (1, 2, 3 or 4). If the
LED is flickering, the Router is actively sending or receiving
data over that port. Port 1 is lit when using the Uplink 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 r unning in Full Duplex mode. If the
LED flickers, the connection is experiencing collisions.
Infrequent collisions are normal.

If this LED flickers too often, there may be a problem with
your connection. See “Appendix A: Troubleshooting” if you
encounter this problem.

100 Orange. 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.

The 4-Port Router’s Front Panel LEDs

Figure 2-2

Chapter 2: Getting to Know the 4­Port EtherFast®Cable/DSL Router

The Router’s ports, where network cables are connected, are located on the rear
panel of the Router, as shown in Figure 2-1.

WAN The WAN (Wide Area Network) por t is where you

connect your cable or DSL modem through an
Ethernet cable. Your modem connection will not

work from any other port.

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

nect to network devices, such as PCs, print servers,
and remote hard drives. If Port 1 is being used, the
Uplink port will not work because these two shared
ports have internally shared wiring.

Uplink The Uplink por t is used to expand your network by

connecting to another switch or hub. To uplink to a
switch or a hub, simply run a cable from the Uplink
port to the other device. See the “Uplinking:
Connecting More Devices to the Router” section for
more on uplinking.

If the Uplink port is being used, Port 1 will not
work.

Powe r The Power port is where you will connect the

power adapter.

The 4-Port Router’s Rear Panel

Figure 2-1

EtherFast®Cable/DSL Routers

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Instant Broadband™Series

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Chapter 3: Getting to Know the 1­Port EtherFast Cable/DSL Router

The rear panel of the Router is where all of the Router’s cabling connections
are made, and where you can reset or configure the Router’s LAN port, as
shown in Figure 3-1.

WAN The WAN (Wide Area Network) por t is where you

connect your cable or DSL modem through an
Ethernet cable. Your modem connection will not

work from any other port.

LAN The LAN (Local Area Network) port is where you

connect the Router to a PC, hub, or switch. If you
have more than one PC, connect an Ethernet hub or
switch to the Router, and then connect your PCs to
that hub or switch.

Power The Power port is where you will connect the

power adapter.

Buttons & Switches

The Reset Button Details on the Reset button are found in the

“Chapter 2: Getting to Know the 4-Port EtherFast
Cable/DSL Router.”

The 1-Port Router’s Rear Panel

Figure 3-1

The WAN Indicators

Link Green. The Link LED lights up when a successful connec-

tion is made between the Router and your cable or DSL
modem or network.

Act Green. The Act LED flickers when the Router is sending or

receiving data over the WAN por t (to the Inter net).

Diag Red. The Diag LED lights up when the Router goes through

its self-diagnosis mode during every boot-up. It will turn off
upon successful completion of the diagnosis.

If this LED stays on for an abnormally long period of time,
see “Appendix A: Troubleshooting.”

Proceed to “Chapter 5:Connect the Router.”

The Reset Button

*

The Reset button can be used in one of two ways.

1. If the Router is having problems connecting to the Internet, press the Reset

button for just a moment with a paper clip or a pencil tip. This clears up an y
jammed connections, and is similar to pressing the Reset button on your PC
to reboot it.

2. If you are experiencing extreme problems with the Router and have tried all

other troubleshooting measures, press the Reset Button and hold it down
until the red Diag LED on the front panel turns on and off completely.

This will restore factory defaults and clear all of the Router’s settings, includ­ing settings such as IP addresses or a new password.

* The Reset Button is located on the front panel of the 4-Port Router, and the rear panels of the 3-

Port Router and the 1-Port Router.

EtherFast®Cable/DSL Routers

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

LED remains lit, a LAN port connection is being successful­ly maintained. If the LED flickers, the connection is experi­encing collisions. Infrequent collisions are normal.

If this LED flickers too often, there may be a problem with
your connection. See “Appendix A: Troubleshooting” if you
encounter this problem.

10/100 Orange. The 10/100 LED lights up when a successful

100 Mbps connection is made through the corresponding
port.

If a connection is running at 10 Mbps, the 10/100 LED will
not light up.

The WAN Indicators

Link Green. The Link LED lights up when a successful connec-

tion is made between the Router and your broadband device
or network.

Act Green. The Act LED flickers when the Router is sending or

receiving data over the WAN por t.

Diag Red. The Diag LED lights up when the Router goes through

its self-diagnostic mode. It will turn off upon successful
completion of the diagnosis.

If this LED stays on for an abnormally long period of time,
see “Appendix A: Troubleshooting.”

Proceed to “Chapter 5:Connect the Router.”

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Instant Broadband™Series

12

The Crossover Switch

When “uplinking,” or connecting two pieces of network hardware together,
such as a hub and a switch, a general rule of thumb is to plug one end of a
network cable into a straight-through port, and the other end into a crossover
port (uplink port). Standard ports are straight-through por ts, and uplink ports
are crossover ports.

The
1­Port

Power Green. The Power LED lights up green when the Router is

powered on.

Link/Act Green. The Link/Act LED ser ves two purposes. If the LED

is continuously lit, the Router is successfully connected to a
device through the LAN port. If the LED is flickering, the
Router is actively sending or receiving data through the LAN
port.

Important: The chart in Figure 3-2 is for reference purposes
only. Every network is different. If you do not make a connec­tion to a hub or switch by using the settings above, change the
position of the Crossover Switch.

The 1-Port Router’s Front Panel LEDs

Figure 3-2

Figure 3-3

EtherFast®Cable/DSL Routers

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Instant Broadband™Series

14

This USB icon, shown in Figure 4-2, denotes the presence of a USB port or

connector.

The 3-Port Router comes with a USB cable that has two different types of con­nectors. Type A, the master connector, is shaped like a rectangle and plugs into
your PC’s USB port. Type B, the slave connector, resembles a square and con­nects to the USB port on the rear panel of the Router.

To use the USB port on the 3-Port Router, you must have Windows 98, 2000,
Millennium, or XP installed on your PC. USB cannot run in a Windows 95 or
NT environment.

Also, your PC must have a USB port installed and enabled. Some PCs may
have a disabled USB port. If your port doesn’t seem to be working, there may
be jumpers on the motherboard or a menu option in the BIOS to enable a PC’s
USB port.

Other motherboards have USB interfaces, but no ports. You can purchase and
install a USB-ready card at your local computer store. See your PC’s user
guide for instructions.

USB Type A

USB Type B

Note: USB ports do not work on PCs running Windows 95 or NT.

Figure 4-2

Figure 4-3

Chapter 4: Getting to Know the 3­Port EtherFast Cable/DSL Router

Ports 1-3 These three LAN por ts connect to your PCs, hubs,

switches, print servers, or any other devices with an
Ethernet port.

Uplink The Uplink por t connects to another hub or switch

for port expansion when you run out of open ports
for your network devices. Since the Uplink port and
the standard port right next to it share internal wiring,
you can only use one of the two ports at a time.

WAN The WAN (Wide Area Network) por t is where you

connect your cable or DSL modem through an
Ethernet cable. Your modem connection will not

work from any other port.

Power The Power port is where you will connect the

power adapter.

USB The USB port (Type B - slave) can connect to a

USB-ready PC or a USB hub. This allows you to
enjoy an immediate, plug-and-pla y connection with­out even installing an Ethernet adapter for your PC.
To work with USB ports, your PC must be running
Windows 98, 2000, Millennium, or XP.

The Reset Button Details on the Reset button are found in the

“Chapter 2: Getting to Know the 4-Port EtherFast
Cable/DSL Router.”

The 3-Port Router’s Rear Panel

Figure 4-1

USB Compatibility

EtherFast®Cable/DSL Routers

The WAN Indicators

Link Green. The Link LED lights up when a successful connec-

tion is made between the Router and your broadband device
or network.

Act Green. The Act LED flickers when the Router is sending or

receiving data over the broadband WAN por t.

Diag Red. The Diag LED lights up when the Router goes through

its self-diagnostic mode. It will turn off upon successful
completion of the diagnosis.

If this LED stays on for an abnormally long period of time,
see “Appendix A: Troubleshooting.”

Proceed to “Chapter 5:Connect the Router.”

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Instant Broadband™Series

16

Power Green. The Power LED lights up green when the Router is

powered on.

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

is continuously lit, the Router is successfully connected to a
device through the corresponding RJ-45 port (1, 2, or 3). If
the LED flickers, then that port is sending or receiving data
to and from the network. When the Uplink port is in use, then
Port 3 will be lit.

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

LED is continuously lit, the connection made through the
corresponding port is r unning in Full Duplex mode. If the
LED is flickering, the connection is experiencing collisions.
Infrequent collisions are normal.

If this LED flickers too often, there may be a problem with
your connection. See “Appendix A: Troubleshooting” if you
have problems.

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

connection is made through the corresponding port. If this
LED does not light up, then your connection speed is
10 Mbps.

USB The USB LED lights up when the USB port is successfully

connected to a USB-ready PC or USB hub.

The 3-Port Router’s Front Panel LEDs

Figure 4-4

EtherFast®Cable/DSL Routers

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Instant Broadband™Series

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

2. If you have the 4-Port Router, go to step 2.A. If you have the 1-Port Router,
go to step 2.B. If you have the 3-Port Router, go to step 2.C.

2. A. If you have the 4-Port Cable/DSL Router, connect one end of an
Ethernet cable to one of the LAN ports (labeled 1, 2, 3, or 4) on the back of
the Router, and the other end to a standard port on a network device, e.g., a
PC, print server, hub, or switch. See “Appendix E: Twisted-Pair Cabling” for
details on network cabling.

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

2. B. If you have the 1-Port Router, connect one end of an Ethernet cable to
the LAN port on the back of the Router, and the other end to a port on a net­work device, e.g., a PC, hub, or s witch. If y ou are using the LAN Port to con-

nect to a PC, set the Crossover switch to straight-through mode ( || ). If you
are connecting the Router to a hub or switch, refer to the chart shown in
Figure 5-2 when setting the Crossover switch.

2. C. If you have the 3-Port Cable/DSL Router, connect one end of an
Ethernet cable from the Router’s LAN ports (labeled 1, 2, or 3) to an
Ethernet adapter port on a PC, hub, switch, or other network device.

The 3-Port Router features one USB plug-and-play port that connects
instantly to any USB-ready PC or USB hub. This allows you to connect to
and access the Router without even installing any Ethernet adapter cards.

Note: A standard port is any port other than the WAN port and
the Uplink port on the Router. It is a straight-through port.

Figure 5-2

Connecting Your Hardware Together and Booting Up

Chapter 5: Connect the Router

Unlike a hub or a switch, the Cable/DSL Router’s setup consists of more than
simply plugging hardware together. You will have to configure your networked
PCs to accept the IP addresses that the Router assigns them (if applicable), and
you will also have to conf igure the Router with setting(s) provided by your
Internet Service Provider (ISP).

The installation technician from your ISP should have left the setup informa­tion with you after installing your broadband connection. If not, you can call
your ISP to request the data.

Once you hav e the setup information you need for your specific type of Internet
connection, you can begin installation and setup of the Router.

Overview

Cable or DSL

Modem

Cable/DSL Router

PC with Ether net Adapter

Notebook with Ether net Adapter

WAN

LAN

Figure 5-1

EtherFast®Cable/DSL Routers

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20

If the Router’s LAN por ts are all full and you still have PCs and/or devices to
connect, connect a hub or a switch to the Router using an Ethernet cable.

To do so, use the Router’s Uplink por t to connect to a standard port on a hub
or switch. This leaves you with new, open ports on the hub or switch, to which
you can add more PCs and/or network devices.

If you have a PC/device connected to the port right next to the Uplink port (on
the 3- and 4-Port Routers), disconnect that PC/device and plug it into an open
port on the new hub or switch.

Since the Uplink port shares inter nal wiring with the port right next to it, you
can only use one of these two ports at a time; these ports are called shared
ports.

If your new hub or switch also has an Uplinkport, it too can be uplinked when
you run out of ports, and so on.

See your nearest Linksys retailer or visit www.linksys.com for complete prod-
uct lines of 10/100 Mbps hubs and switches.

If you have a 3-Port Router with USB and you are using its USB port,

then proceed to the next page, “Chapter 6: Installing the BEFSRU31’s

USB Port Drivers.” Otherwise , go to “Chapter 7: Configure

the PCs.”

Uplinking: Connecting More Devices to the Router

3. Connect the Ethernet cable from your cable or DSL modem to the WAN port

on the Router’s rear panel. This is the only port that will work for your
modem connection.

4. Connect the power adapter to the Power port on the rear panel of the Router,
and then plug the power adapter into a power outlet.

• The Power LED on the front panel will light up green as soon as the power

adapter is connected properly.

• The Diag LED will light up red for a few seconds when the Router goes

through its self-diagnostic test. This LED will turn off when the self-test is
complete.

5. Power on the cable or DSL modem.

6. Press the Reset button on the Router’s front panel with a paper clip or a pen­cil. Hold the button in until the Diag LED lights up and then turns off. This
will restore the Router’s factory default settings.

The Router’s hardware installation is now complete.

Note:You should always plug the Router’s power

adapter into a surge protecting power strip.

Have yo u checked that the Link/Act LEDs for all your LAN con-
nections and the Link LED for your WAN connection light up?

If all of your Link LEDs are not lighting up, make sure that all your
cables are securely plugged in, and that all of your hardw are is po w ered
on properly. Verify that the modem is plugged into the WAN port on the
Router.

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22

3. Select Search for the best driver for your device (Recommended), shown
in Figure 6-2. Click the Next button.

4. Insert the driver disk into the floppy drive, and select Floppy disk drives
only, as shown in Figure 6-3. Click the Next button to star t the search for
your driver.

Figure 6-2

Figure 6-3

Chapter 6: Installing the
BEFSRU31’s USB Port Drivers

Use the enclosed USB cable to connect your PC to the Router; the Type A end
connects to your PC’s USB port, while the Type B end connects to the Router’s
USB port. Now that all of the Router’s hardware is connected together, you
must enable the PC that will connect to the Router through its USB port.

Since your USB connection acts as an Ether net adapter for your PC, there’s no
need for you to install an Ethernet adapter on that PC. Just follow the direc­tions below to enable your PC’s USB connection to the Router:

• If you are running Windows 98, continue to the section below on this page.

• For other Windows operating systems, please refer to the appropriate section

in this chapter as listed in the Table of Contents.

You can also connect the Router’s USB port to other USB devices besides
USB-ready PCs, such as a USB hub using a USB cable.

1. With the Router powered up and connected to your PC’s USB port using a
USB cable, start up your PC in Windows 98, and have the Router’s driver
disk available.

2. Windows will notify you that it has detected new hardware, as shown in
Figure 6-1. Click the Next button.

Note: After you finish this conf iguration, make sure that TCP/IP is
installed on your PC(s). For instructions on installing TCP/IP, see
“Appendix D: Installing the TCP/IP Protocol.”

Installing the Windows 98 Driver

Figure 6-1

EtherFast®Cable/DSL Routers

7. Windows will notify you that it has completed copying the driver files to

your PC, as shown in Figure 6-6. Click the Finish button to complete the
USB driver installation.

8. Windows will ask you if you want to restart your PC, as shown in Figure 6-

7. Click the Yes button so your new installation will take effect.

If it does not ask you to restart your computer, click the Start button, and
select Shut Down. Then select Restart and click the OK button.

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Instant Broadband™Series

5. The Hardware Wizard will search the floppy, and a new window will appear
(shown in Figure 6-4), notifying y ou that Windows is now ready to install the
best driver for this device. Click the Next button to continue.

6. Windows will begin copying the files to your PC, as shown in Figure 6-5.
Do not click the Cancel button or press the Esc key during this process.

If Windows asks for your Windows operating system files before copying,
direct your PC to the location of those files, e.g, c:\windows\options\cabs,
or D:\Win98 (if “D” is the letter of your CD-ROM drive).

24

Figure 6-6

Figure 6-7

Figure 6-4

Figure 6-5

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Instant Broadband™Series

9. When your PC has f inished restarting, click the Start button, and select

Settings and Control Panel. Double-click Network. Make sure that

TCP/IP is installed on your PC, as shown on the screen in Figure 6-8. By
default, Windows 98 has TCP/IP installed. If TCP/IP is not installed, please
go to “Appendix D: Installing the TCP/IP Protocol” for installation instruc­tions.

Your USB driver installation is now complete.

Go to “Chapter 7: Conf igure the PCs.”

26

1. With the Router powered up and connected to your PC’s USB port using a
USB cable, start up your PC in Windows 2000, and have the Router’s driver
disk availab le. Windows will notify you that the PC has found new hardware.
The Windows’Hardware Wizard will then notify you that it is ready to start
installing the driver files on your PC, as shown in Figure 6-9. Click the Ne xt
button.

2. Select Search for a suitable driver for my device (Recommended), as
shown in Figure 6-10, and click the Next button.

Installing the Windows 2000 Driver

Figure 6-9

Figure 6-10

Figure 6-8

EtherFast®Cable/DSL Routers

5. When the Digital Signature Not Found screen appears, as shown in Figure 6­13, Windows will ask you if you want to continue the installation. Click the
Yes button.

6. Click the Next button from the screen shown in Figure 6-14 to allow
Windows to copy the driver f iles to your PC.

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Instant Broadband™Series

28

Figure 6-13

Figure 6-14

3. Insert the driver disk into the floppy drive, and when Windows asks you

where to search for driver files, select Floppy disk drives only, as shown in
Figure 6-11. Click the Next button.

4. Windows will notify you that it has found the driver files. (See Figure 6-12.)

Click the Next button.

Figure 6-11

Figure 6-12

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30

1. With the Router powered up and connected to your PC’s USB port using a
USB cable, start up your PC in Windows Millennium.

2. Windows will notify you that new hardware has been detected (see Figure
6-17). Insert the driver disk. Select Automatic search for a better drive
(Recommended), and click the Next button (see Figure 6-18).

3. Windows will notify you that it has finished installing the driver files on
your PC, as shown in Figure 6-19. Click the Finish button.

Installing the Windows Millennium Driver

Figure 6-17

Figure 6-18

Figure 6-19

7. Windows will notify you that it has finished installing the driver files on

your PC, as shown in Figure 6-15. Click the Finish button to complete the
USB driver installation.

8. Go to the Start button, and select the Settings option. Then select the

Network and Dial-up Connections option, and click the Local Area
Connection icon. Click the Properties button to display the screen shown

in Figure 6-16. Highlight Internet Protocol (TCP/IP), as shown in Figure
6-16, and click the Properties button. Make sure that TCP/IP is set to

Obtain an IP address automatically.

Your USB driver installation is now complete.

Go to “Chapter 7: Conf igure the PCs.”

Figure 6-15

Figure 6-16

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Instant Broadband™Series

32

1. With the Router connected to your PC’s USB port using a USB cable, start
up your PC in Windows XP.

2. Windows will notify you that new hardware has been detected (shown in
Figure 6-22). Select Install from a list or specific location (Advanced),
and click the Next button (see Figure 6-23).

3. Insert the driver disk into the floppy drive, and select Search for the best
driver in these locations. Then select Include this location in the search:
and enter A:\ in the location f ield (if “A” is the letter of your floppy drive).
(See Figure 6-24.) All other options must be unchecked (assuming you are
running Windows XP with the def ault interface). Click the Next button.

Installing the Windows XP Driver

Figure 6-24

Figure 6-22

Figure 6-23

4. Windo ws will ask you to restart your PC, as shown in F igure 6-20. Click the

Yes button.

5. When your PC has finished restarting, click the Start button, and select
Settings and Control Panel. Double-click Network and you will see a
screen similar to that shown in Figure 6-21. Make sure that TCP/IP is
installed for your PC, as shown in Figure 6-21. By default, Windows
Millennium has TCP/IP installed. If TCP/IP is not installed, please go to
“Appendix D: Installing the TCP/IP Protocol” for instructions on installa­tion.

Your USB driver installation is now complete.

Go to “Chapter 7: Conf igure the PCs.”

Figure 6-20

Figure 6-21