Linksys BEFSR81v3 Router Manual PDF (Setup & Configuration Guide)

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EtherFast

®

Cable/DSL Router with QoS and 8-Port Switch

6

Instant Broadband

®

Series

5

The Router’s LEDs (shown in Figure 2-2), display network activity through the

Router.

The LAN Indicators

Power

Green

. The

Power

LED lights up when the Router is powered

on.

QoS

Green

. The

QoS

LED lights up when the QoS feature is active.

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 port. If the LED is flickering, the

Router is actively sending or receiving data over that port.

The Router’s Front Panel LEDs

Figure 2-2

Chapter 2: Getting to Know the

EtherFast

®

Cable/DSL Router

with QoS and 8-Port Switch

The Router’s ports (shown in Figure 2-1), where network cables are connected,

are located on the Router’s back panel.

WAN

The

WAN

(Wide Area Network) port is where you connect

your cable or DSL modem through an Ethernet cable.

Your

modem connection will not work from any other port.

Ports 1-8

These eight

LAN

(Local Area Network) ports connect to net-

work devices, such as PCs, print servers, and network

attached storage (NAS). Each of the ports will auto-detect

whether a straight-through or crossover cable is plugged into

it, so there is no need for an uplink port. Any one of the eight

ports can serve as an uplink port to other network devices.

Power

The

Power

port is where you will connect the power adapter.

The Router’s Back Panel

Figure 2-1

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 any

jammed connections, and is similar to pressing the

Reset

button on your PC

to reboot it.

This will reboot the Router while keeping all of the Router’s settings.

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.

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EtherFast

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Cable/DSL Router with QoS and 8-Port Switch

8

Chapter 3: Connect the Router

Unlike a hub or a switch, the Router’s setup consists of more than simply plug-

ging 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 configure the Router with setting(s) provided by your Internet

Service Provider (ISP).

An example of this setup is shown in Figure 3-1.

The installation technician from your ISP should have left the setup informa-

tion for your modem with you after installing your broadband connection. If

not, you can call your ISP to request the data.

Once you have 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

Router

Desktop PC with

Ethernet Adapter

Notebook PC with

Ethernet Adapter

WAN

LAN

Figure 3-1

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Full/Col

Green

. The

Full/Col

LED also serves two purposes. If this LED

is lit up solidly, the connection made through the corresponding

port is running in Full Duplex mode. If the LED flickers, the

connection is experiencing collisions (when two PCs send data

at the same time). Infrequent collisions are normal.

If this LED flickers continuously, 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 WAN Indicators

Link

Green

. The

Link

LED lights up when a successful connection is

made between the Router and your cable or DSL modem or

WAN.

Act

Green

. The

Act

LED flickers when the Router is sending or

receiving data over the

WAN

port.

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 one minute or longer, see “Appendix A:

Troubleshooting.”

Proceed to “Chapter 3: Connect the Router.”

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EtherFast

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Cable/DSL Router with QoS and 8-Port Switch

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•

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.

G

o to “Chapter 4: Configure the PCs.”

1.

Before you begin, make sure that all of your network’s hardware is powered

off, including the Router, PCs, and cable or DSL modem.

2.

Connect one end

of

an

Ethernet

cable to one of the

LAN

ports

(labeled

1-8

) on

the back of the

Router, as shown

in Figure 3-2, 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.

3.

Connect the Ethernet cable from your cable or DSL

modem to the

WAN

port on the Router’s rear panel,

shown in Figure 3-3.

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, as shown in Figure 3-4, and

plug the power adapter into a power outlet.

Connecting Your Hardware Together and Booting Up

Note:

You should always connect the power

for any networking peripheral into a power

strip with surge protection.

Have you

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 hardware is pow-

ered on properly. Verify that the modem is plugged into the WAN

port on the Router.

Figure 3-2

Figure 3-3

Figure 3-4

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EtherFast

®

Cable/DSL Router with QoS and 8-Port Switch

1.

Go to the Network screen by clicking the

Start

button. Click

Settings

and

open the

Control Panel

. From there, double-click the

Network

icon.

2.

On the Configuration tab, shown in Figure 4-1, 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

D: Installing the TCP/IP Protocol” or your Ethernet adapter’s documenta-

tion to install TCP/IP now.) Then, click the

Properties

button.

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Chapter 4: Configure the PCs

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

ers to be able to communicate with the Router.

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, such as the Internet.

Find out which Windows operating system your computer is running. You can

find out by clicking the

Start

button and then selecting the

Settings

option.

Open the

Control Panel

, and double-click the

System

icon. If your Start menu

doesn’t have a Settings option, you’re running Windows XP. Click the

Cancel

button when done.

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

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

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

that an Ethernet card or adapter (also known as a network adapter) has been

successfully installed in each PC you will configure. Once you’ve configured

your computers, continue to “Chapter 5: Configure the Router.”

11

Figure 4-1

Configuring Windows 95, 98, and Millennium PCs

Important:

These instructions apply only to Windows 95, 98,

Millennium, 2000, or XP machines. For TCP/IP setup under

Windows NT, see your Windows manual. By default, Windows 98,

2000, Me, and XP have TCP/IP installed and set to obtain an IP

address automatically.

Overview

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EtherFast

®

Cable/DSL Router with QoS and 8-Port Switch

1. Click the

Start

button. Click

Settings

and open the

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). Double-click

Local

Area Connection

. On the screen that appears, shown in Figure 4-3, click

the

Properties

button.

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3. Click

the

IP

Address

tab. Select

Obtain

an

IP

address automati-

cally

, as shown in

Figure 4-2

4. Now click the

Gateway

tab, and verify that the Installed Gateway field is

blank. Click the

OK

button.

5. Click the

OK

button again. Windows may ask you for the original Windows

installation

disk

or

additional

files.

Check

for

the

files

at

c:\windows\options\cabs, or insert your Windows CD-ROM into your CD-

ROM drive and check the correct file location, e.g., D:\win98, D:\win9x,

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: Configure the Router.”

13

Configuring Windows 2000 PCs

Figure 4-3

Figure 4-2

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