Linksys BEFSR11 - EtherFast Cable/DSL Router Manuale utente

Instant Broadband™ Series

EtherFast®

Cable/DSL Routers

Use this User Guide to install the following Linksys product(s):

BEFSRU31 EtherFast Cable/DSL Router with USB Port and 10/100 3-Port Switch

BEFSR41 v2 EtherFast Cable/DSL Router with 10/100 4-Port Switch

BEFSR11 EtherFast 1-Port Cable/DSL Router

User Guide

trademark of Linksys. Microsoft, Windows, and the Windows logo are registered trade-

marks of Microsoft Corporation. All other trademarks and brand names are the proper-

ty of their respective proprietors.

LIMITED WARRANTY

Linksys guarantees that every Instant Broadband EtherFast Cable/DSL Router is free

from physical defects in material and workmanship under normal use for one (1) year

from the date of purchase. If the product proves defective during this warranty period,

call Linksys Customer 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 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’ 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

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 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 reasonable protection against harmful

interference in a residential installation. This equipment generates, uses, and can radi-

ate radio frequency energy and, if not installed and used according to the instructions,

may cause harmful interference to radio communications. However, there is no guaran-

tee 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 device

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

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

009

Instant Broadband Series EtherFast Cable/DSL Routers

Configuring Your Network with the

Cable/DSL Router 33

Configuring Your Cable/DSL Router 34

Configuring Your PCs to Connect to the Cable/DSL Router 36

The Cable/DSL Router’s Web-based Utility 38

Quick and Easy Router Administration 38

Setup 39

Password 41

Status 43

DHCP 44

Help 45

IP Filtering 47

IP Forwarding 49

Dynamic Routing 50

Static Routing 51

DMZ Hosting 53

Logging 54

Troubleshooting 55

Common Problems 55

Frequently Asked Questions 57

Appendix 61

How to Ping Your ISP’s E-mail & Web Addresses 61

Installing the TCP/IP Protocol 64

Twisted-Pair Cabling 66

Crimping Your Own Network Cables 67

4-Port Router Specifications 68

Environmental Specifications 68

1-Port Router Specifications 69

Environmental Specifications 69

3-Port Router Specifications 70

Environmental Specifications 70

Customer Support 71

Table of Contents

Introduction 1

The Linksys EtherFast Cable/DSL Router 1

Features 1

Package Contents for the 4-Port Router 2

Network Requirements 2

Package Contents for the 1-Port Router 3

Network Requirements 3

Package Contents for the 3-Port Router 4

Network Requirements 4

Getting to Know the 4-Port

EtherFast Cable/DSL Router 5

The 4-Port Router’s Rear Panel 5

The 4-Port Router’s Front Panel LEDs 6

Getting to Know the 1-Port

EtherFast Cable/DSL Router 8

The 1-Port Router’s Rear Panel 8

The 1-Port Router’s Front Panel LEDs 9

Getting to Know the 3-Port

EtherFast Cable/DSL Router 11

The 3-Port Router’s Rear Panel 11

The USB Icon 12

The 3-Port Router’s Front Panel LEDs 13

Connecting Your Cable/DSL Router

to Your Network 15

Overview 15

LANs and WANs 15

IP Addresses: A Quick Lesson 16

Connecting Your Hardware Together & Booting Up 18

Uplinking: Connecting More Devices toYour Router 20

Configuring Your Router’s USB Port 21

Windows 98 Configuration 21

Windows 2000 Configuration 25

Windows Millennium Configuration 29

EtherFast Cable/DSL Routers

Package Contents for the 4-Port Router

•One EtherFast Cable/DSL Router with 10/100 4-Port Switch

•One Power Adapter

•One Power Cord

•One User Guide and Registration Card

Network Requirements

•One RJ-45 broadband Internet connection, with a cable or DSL modem

•One PC with a 10Mbps or 10/100 Mbps Ethernet card or adapter installed

•TCP/IP network protocol installed on each PC

•UTP CAT 5 network cables with RJ-45 connectors

•Internet Explorer 4.0 and higher, or Netscape Navigator 4.0 and higher

Version 5.5 for Internet Explorer and Version 4.7 for Netscape

Navigator are highly recommended for optimal results.

Instant Broadband Series

Introduction

The Linksys EtherFast Cable/DSL Router

Congratulations on the purchase of your EtherFast Cable/DSL Router from

Linksys! The EtherFast Cable/DSL Router is the perfect solution for connect-

ing a network of PCs to a high-speed broadband Internet connection and to

an Ethernet network backbone. Configurable as a DHCP server, the EtherFast

Cable/DSL Router is the only visible network device on the Internet. The

Router also serves as your Internet firewall, protecting your network’s PCs

from being accessed by external users. All incoming data packets are moni-

tored and filtered. Your Router can also be configured to block internal users'

access to the Internet with IP Filtering, as well as play Internet games, video-

conference, and much more.

Now all of your PCs can enjoy lightning-fast broadband Internet connections

and share internal network data. Link it all together and your network will

blaze along faster than you ever thought possible.

Features

•Connects to a Broadband Modem and to an Ethernet Network Backbone

• Equipped With a 3 or 4-Port 10/100 Switch (BEFSRU31 & BEFSR41 v2

only)

•Connects All of Your PCs to the Internet with Just One IP Address

•Firewall ProtectsYour PCs From Outside Intruders on the Internet

•Configurable Through a PC’s Web Browser Using Netscape Navigator 4.0

or Internet Explorer 4.0

•Supports IPSec Pass-Through for Virtual Private Networking (VPNs)

•Administer Your Router Remotely Over the Internet

•10/100 Switch Speeds Up Your Gaming and Multimedia Connections

(BEFSRU31 & BEFSR41 v2 only)

•Configurable as a DHCP Server onYour Network

•Compatible with Virtually All Standard Internet Applications

•Administrators Can Block Specific Internal Users' Internet Access

•DMZ Hosting Feature Enables Internet Multimedia Applications

Such as Video-Conferencing and Internet Gaming

EtherFast Cable/DSL Routers

Package Contents for the 3-Port Router

•One EtherFast Cable/DSL Router with USB Port & 10/100 3-Port Switch

•One USB Cable

•One 3.5” Floppy Disk for USB Setup

•One Power Adapter

•One User Guide and Registration Card

Network Requirements

•One RJ-45 broadband Internet connection, with a cable or DSL modem

•One PC with a 10/100 Mbps Ethernet card or adapter installed,

or a PC with a USB port

•TCP/IP network protocol installed on each PC

•UTP CAT 5 network cables with RJ-45 connectors

•Internet Explorer 4.0 and higher, or Netscape Navigator 4.0 and higher

Version 5.5 for Internet Explorer and Version 4.7 for Netscape

Navigator are highly recommended for optimal results.

Instant Broadband Series

Package Contents for the 1-Port Router

•One EtherFast 10/100 1-Port Cable/DSL Router

•One Power Adapter

•One User Guide and Registration Card

Network Requirements

•One RJ-45 broadband Internet connection, with a cable or DSL modem

•One PC with a 10/100 Mbps Ethernet card or adapter installed

•TCP/IP network protocol installed on each PC

•UTP CAT 5 network cables with RJ-45 connectors

•Internet Explorer 4.0 and higher, or Netscape Navigator 4.0 and higher

Version 5.5 for Internet Explorer and Version 4.7 for Netscape

Navigator are highly recommended for optimal results.

EtherFast Cable/DSL Routers

Instant Broadband Series

4-Port Router’s Front Panel LEDs

The LAN Indicators

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

ered on.

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

is continuously lit up, the Router is successfully connected

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

the LED is flickering, the Router is actively sending or

receiving 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.

If this LED flickers too often, there may be a problem with

your connection. See the Troubleshooting section if you

have problems.

100 Orange. The 100 LED lights up when a successful

100Mbps connection is made through the corresponding

port.

If this LED is not lighting up, then your connection speed is

10 Mbps.

BEFSR41 v2 shown above

Getting to Know the 4-Port

EtherFast Cable/DSL Router

The 4-Port Router’s Rear Panel

Your Router’s ports, where network cables are connected, are located on the

rear panel of your Router.

The 4-Port Router’s Ports

WAN The WAN (Wide Area Network) port is where you

connect your cable or DSL modem.

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 1is being used, the

Uplink port will not work- these two shared ports

have internally shared wiring.

Uplink The Uplink port is used to expand your network

by connecting to another switch or hub. Uplinking

to another Router, switch or a hub is done by sim-

ply running a cable from the Uplink port to the

other device. See page 10 for more on uplinking.

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

work.

Power The Power port is where you will connect the

power adapter. Be sure to connect the power cord

to the power adapter before plugging it in.

BEFSR41 v2 shown above

EtherFast Cable/DSL Routers

Instant Broadband Series

Getting to Know the 1-Port

EtherFast Cable/DSL Router

The One-Port Router’s Rear Panel

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.

The One-Port Router’s Ports

WAN The WAN (Wide Area Network) port is where you

connect your cable or DSL modem.

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

connect your Router to a PC, hub, or switch. If

you have more than one PC, connect an Ethernet

hub or switch to your Router, then connect your

PCs to that hub or switch.

Power The Power port connects to the power adapter.

BEFSR11 shown above

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 port (to the

Internet).

Diag Orange. The Diag LED lights up when the Router goes

through its self-diagnosis mode during every boot-up, and

also when you click Apply to update any changes made in

the Router’s Utility. It will turn off upon successful comple-

tion of the diagnosis.

If this LED stays on for an abnormally long period of time,

see the Troubleshooting section.

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

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

Reset button in 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 but-

ton on your PC to reboot it.

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

all other troubleshooting measures, press the Reset Button in and hold it

down until the orange 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 the IP addresses you entered.

Leaving the power off for too long could result in the loss of network con-

nections.

See also restoring factory defaults through the Web-based Utility in the

Cable/DSL Router’s Web-based Utility section.

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

3-Port Router and the 1-Port Router.

EtherFast Cable/DSL Routers

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

is continuously lit up, 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.

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

LED remains lit, a LAN port connection is being success-

fully 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 Troubleshooting on page 56 if you

encounter problems.

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

100Mbps connection is made through the corresponding

port.

If a connection is running at 10Mbps, 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 broadband WAN port.

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

its self-diagnostic test during boot-up. It will turn off upon

successful completion of the diagnosis. The Diag LED also

lights up when you press the Reset button or click Apply to

save any changes made in the Web-based Utility.

If this LED stays on for an abnormally long period of time,

see the Troubleshooting section.

Instant Broadband Series

Buttons & Switches

The Reset Button Details on the Reset button are found on page 7.

The Crossover Switch The Crossover Switch (X II) toggles the LAN port

between crossover mode (X) and straight-through

mode (II).

If you are connecting the Router’s LAN Port

directly to a PC or an uplink port on a hub or

switch, choose the crossover (X) mode.

If you are connecting the Router’s LAN port to a

standard port on a hub or switch, choose the

straight-through (II) mode.

The 1-Port Router’s Front Panel LEDs

The LAN Indicators

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

powered on.

NNoottee::If you’re not sure which mode to use on the Crossover Switch, check the

LLAANNport’s LLiinnkkLED on the front panel of the Router.

If the LLiinnkkLED does not light up after the Router is fully installed and config-

ured, try switching the Crossover Switch to the other side. If the LLiinnkkLED lights

up, you know that your mode setting is correct.

BEFSR11 shown above

When“uupplliinnkkiinngg,” or connecting two pieces of network hardware together, such

as a router and a switch, aa

ggeenneerraall

rruulleeoofftthhuummbbis to plug one end of a network

cable into a straight-through port, and the other end into a crossover port.

Standard ports are straight-through ports, and uplink ports are crossover ports.

EtherFast Cable/DSL Routers

Instant Broadband Series

The USB Icon

This USB icon denotes the presence of a USB port or connector.

Your 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 your Router.

1, 2, 3 These three LAN ports connect to your PCs, hubs,

switches, print servers, or any other device with an

Ethernet port.

Uplink The Uplink port 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 This WAN port connects to your cable or DSL

modem. Your modem connection will not work

from any other port.

Power The Power port connects to the power adapter.

Getting to Know the 3-Port

EtherFast Cable/DSL Router

The 3-Port Router’s Rear Panel Ports

The 3-Port Router’s Ports

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-play connec-

tion without even configuring a network adapter

for your PC. To work with USB ports, your PC

must be running Windows 98, 2000, or

Millennium.

BEFSRU31 shown above

USB Compatibility with Your PC

To use the USB port on the 3-Port Router, you must have Windows 98, 2000, or

Millennium installed on your PC. USB cannot run in a Windows 95 or NT environ-

ment.

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 install your own

USB port and attach it to your PC’s motherboard using hardware purchased at retail

computer stores. See your PC’s User Guide for instructions.

USB Type A USB Type B

USB ports do not work on PCs running

Windows 95 or Windows NT.

EtherFast Cable/DSL Routers

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 connec-

tion speed is 10 Mbps.

USB The USB LED lights up when the USB

port is successfully connected to a PC,

USB hub, or other USB device.

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 port.

Diag Orange. The Diag LED lights up when the Router goes

through its self-diagnostic test during boot-up. It will turn

off upon successful completion of the diagnosis. This LED

will also light up when you make changes in the Utility and

click Apply to save them.

If this LED stays on for an abnormally long period of time,

see the Troubleshooting section.

Instant Broadband Series

Buttons

The Reset Button Details on the Reset button are found on page 7.

The 3-Port Router’s Front Panel LEDs

The LAN Indicators

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 up, the Router is suc-

cessfully connected to a device through the corre-

sponding RJ-45 port (1, 2, or 3). If the LED flick-

ers, then that port is sending or receiving data to

and from the network.

Full/Col Green. The Full/Col LED also serves two purpos-

es. If this LED is continuously lit up, the connec-

tion made through the corresponding port is suc-

cessfully running 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 the

Troubleshooting section if you have problems.

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