Linksys EFROU44 Owner's Manual

EtherFast®Series.

EtherF ast

10/100 4-Port

Analo g Router

User Guide

COPYRIGHT & TRADEMARKS
Copyright © 1999 Linksys, All Rights Reserved. EtherFast is a registered
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 EtherFast 10/100 4-Port Analog Router is
free from physical defects in material and workmanship under normal use
starting at the date of purchase. If the product proves defective during this
one year warranty period, call Linksys Customer Support in order to
obtain a Return Authorization number.Warranty is for repair or replace­ment only.Linksys does not issue any refunds.BE SURE TO HAVE YOUR
PROOF OF PURCHASE AND BAR CODE ON HAND WHEN CALLING.
RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF
PURCHASE AND BAR CODE. When returning a product, mark the Return
Authorization number clearly on the outside of the package and include
your original proof of purchase and bar code.

IN NO EVENT SHALL LINKSYS’ 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 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 reser ves 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

This equipment has been tested and found to comply with the limits for a
Class A 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 har mful 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

903

Contents

Introduction 2

Features 3

Planning Y our Network 7

Cabling Rules 8

Hardware Setup 9

Connecting Nodes and Uplinking 10

Protocol Setup for Windows 98 and 95 12
Internet Settings 14
Configuring the Router 15

Status Windows 18
Allow ed Access T imes 20
Router Identity 21
Set Router Clock 22
Customize Menu 23
Save or Reset Settings 24
Reboot Router 25
Upgrade Router 26
Change Password 27
Getting Help 28
Command Line Interface 29

LEDs 30
Appendix 31

Twisted Pair Cabling 31
Windows NT Setup 33
Unsupported Advanced Features Setup 35
Trouble Shooting 38
Specifications 40
Customer Support 41

Introduction

Congratulations on your purchase of a Linksys
EtherFast 10/100 4-Port Analog Router -- the perfect
stand-alone solution for multi-user LAN-to-Internet
connectivity. The EtherFast 10/100 4-Port Analog
Router from Linksys is the quickest and easiest way to
connect up to four external 56K modems to your
10/100 network. The 10/100 4-Port Analog Router
comes with 4 specially-designed RJ-45 modem ports
and 4 10/100 RJ-45 ports -- connect your workstations
directly to the router, or uplink to other hubs and
switches for expanded Internet sharing.

The user-friendly Web interface gets you off to a run­ning start -- every user on the network will be able to
access the Internet in just minutes. The 10/100 4-Port
Analog Router connects up to four external modems to
seperate dial-up ISP accounts. Connect four 56Kbps
modems and you can enjoy blazing 224Kbps band­width.

Since it also comes equipped with 4 dual-speed RJ-45
ports, your 10/100 Analog Router gives you all the
same features as a dual-speed hub. Whether you’ve got
a 10BaseT Ethernet or a 100BaseTX Fast Ethernet
network, the 10/100 Analog Router will automatically
adjust each port to run at the correct speed. The
10/100 Analog Router has a dynamic uplink feature
for increased expandability, 11 intelligent diagnostic
LEDs, and an ease-of-use that is unsurpassed. Backed
with free technical support and a one-year warranty,
the EtherFast 10/100 Analog Router is the best way to
connect your network to the Internet!

2

The 10/100 Analog Router’s features include:

• Share 4 External Modems and 4 ISP Accounts On
Your 10/100 TCP/IP Network -- 4 RJ-45 LAN Ports

and 4 Serial Modem Connections

• Connects 4 Modems at Up To 56Kbps for an

Amazing Maximum Bandwidth of 224 Kbps

• Works With Virtually All V.90 and Hayes Compatible

External Modems

• Also Supports 4 10/100 Ethernet Connections

• Stand-Alone DHCP Server

• Easy-to-Use Web Interface

• Each Dual-Speed RJ-45 Port Automatically Senses

and Negotiates Between 10Mbps and 100Mbps
Network Connections

• Fully Functional IP Router

• Uplink Option For Expansion to Other Hubs or

Switches

• Helpful User Guide Features Instructions For Setting

Up the Right Protocols For Flawless Network and
Interent Sharing

• IPX Routing

• Fast Ethernet Power Offers Hot Performance for

Games, Multimedia, and File Transfers

• View Performance, Activity, and Utilization Statistics

For All 4 Modems On the Router Using the Web
Interface

• 11 Easy-to-Read LED Displays

• Free Technical Support

• Free Firmware Upgrades

• 1 Year Limited War ranty

3

About Fast Ethernet

As the demand for desktop video, multimedia devel­opment, imaging, and other speed-intensive applica­tions continues to rise, the need for high performance,
fault tolerant LAN technology will become more criti­cal.

Standard Ethernet, which has been the most popular
networking technology to date with a maximum data
throughput of 10 Megabits per second, is becoming
insufficient to handle the latest video, multimedia, and
other speed-intensive Client/Server LAN applications.

Among the solutions to the problem of network speed,
Fast Ethernet has emerged as the most viable and
economical. Capable of sending and receiving data at
100 Megabits per second, it is more than fast enough
to handle even the most demanding video and other
real-time applications.

Although there are a number of different competing
Fast Ethernet implementations, 100BaseTX is by far
the most popular. Operating on two pairs of Category
5 unshielded twisted-pair (UTP) cabling, 100BaseTX
supports high speed signaling and is relatively inex­pensive. Because it uses four wires for data transmis­sion and the same packet format, packet length, error
control, and management information as 10BaseT,
100BaseTX can be made to communicate with slower
10BaseT equipment when routed through a switch.

This backward compatibility is one of 100BaseTX's
major advantages over other forms of Fast Ethernet; it
allows critical, speed-dependent network segments to
be upgraded to 100BaseTX speeds as needed without
re-wiring, refitting, and retraining an entire site.
Networks can now mix both slow and fast network
segments for different users or departments.

4

Publishing, R&D, video, multimedia, or accounting
departments can enjoy a 100Mbps pace, while other
corporate segments can operate at slower and more
affordable 10Mbps speeds.

Every 10/100 RJ-45 port on your Analog Router is
capable of running at either 10Mbps or 100Mbps,
allowing you to mix and match economical 10BaseT
hardware with high performance 100Mbps network
cards, hubs, switches, and other equipment.

Before Y ou Begin

Before you install your EtherFast 10/100 4-Port
Analog Router, you should take careful consideration
and ensure that several requirements have been met on
your network.

The router supports 10Mbps or 100Mbps connections.
It also supports multiple external modem connections.
Please be sure that your network adapters are installed
properly and working, you have a separate telephone
line and an Internet Service Provider (ISP) account for
every modem you plan to use. You must have or obtain
the access phone number, user account and the pass­word for each of your ISP accounts. If you were using
a Proxy software previously to connect to the internet,
use the instructions that came with the software to
remove the software from your computer. The modem
router will not work properly if proxy software has
been previously installed.

Workstations on your network must have TCP/IP
installed and configured to obtain an IP address auto­matically using Dynamic Host Control Protocol
(DHCP). If you are using Windows 95, Windows 98 or
Windows NT, detailed instruction about setting up
TCP/IP on Windows 98 or 95 workstations are includ-

5

ed in this guide on page 12. Suggested settings and
instructions for Windows NT are included in the
appendix. Setup, configuration, and troubleshooting of
the TCP/IP protocol under any other operating system
is solely up to the user

Each workstation connected to Analog Router must be
running a Web browser (Netscape Navigator 3.0 or
newer, or Inter net Explorer 3.0 or newer) in order to
connect to the Internet. Any browser you use to con­figure the Analog Router must support HTML 3.2 or
later, and it must support Java and frames.

After the router settings are saved, all you need to do
in order to access the internet is open your browser.
The router will do the rest.

6

Planning Your Network

The rules that govern how nodes and hubs are distrib­uted across a network are important to ensure the
integrity of your data. Cabling specifications, distance
limits, and other topology rules must be followed in
order to avoid collisions or data loss.

The Analog Router is equipped with 4 10/100 UTP
ports that can automatically adjust to either 10Mbps or
100Mbps speeds. Each port can operate at either
speed, completely independent of the other ports
speeds, and can be connected to a workstation, file
server, print server, hub, or another node with twisted­pair cabling.

Although there are different grades of cabling, you
must use EIA 568 Category 5 unshielded twisted-pair
(UTP) for each connection you make, and each cable
should not exceed 100 meters, (328 feet), in length.
Fast Ethernet networks require Category 5 cabling.
Category 5 cabling can be obtained at most computer
stores, or you can crimp your own.

7

Here are some important cabling rules to follow:

· Computers should never be connected directly

together on a network. They should always be con­nected to a hub.

· The maximum cable length from a node to a

10BaseT or 100BaseTX repeater, switch, or hub is

100 meters (328 feet).

· Only two 100Mbps Fast Ethernet hubs can be cas-

caded, (or uplinked), together. To cascade more than
two 100Mbps hubs, a switch must be used.

· The maximum distance between 2 100BaseTX hubs

(or the Analog Router and a 100BaseTX hub)
without a switch is 5 meters (16.4 feet).

· The maximum distance between 2 10BaseT hubs, (or

a 10BaseT hub and an Analog Router), is 100
meters (328 feet).

8

Hardware Setup

1. Remove the EtherFast 10/100 4-Port Analog Router

from its packaging. The area you plan to place the
router must be well ventilated. Leave at least 4"
behind the router to make room for the cable connec­tions. Leave 2" on each side and 1" on top to ensure
good ventilation.

2. Connect the AC adapter to the Analog Router

DC12V power input, and plug the other end into the
nearest wall outlet. It will take between 10 and 30 sec­onds for the router to fully boot up.

3. Connect up to four external modems to the Modem

connectors on the back of Modem Router (4 RJ-45
ports to the right of the 9-pin console port) using the
provided RJ-45 to serial cables. Do NOT connect your
modems to the Ethernet ports on the router. If you
find that you need extra cabling or adpaters, you can
find what you need at your local Linksys vendor.

4. Connect your workstations or hubs to the four

10/100 auto-sensing ports on the back of the router.
The port closest to the AC adapter can be readily used
to uplink to another hub. See page 11 for uplinking
information.

5. If you want to use Command Line Interface, con-

nect a PC or terminal to the console port using the
supplied serial null modem cable.

9

Connecting Nodes to the Analog Router

The Analog Router can be connected to either 10Mbps
or 100Mbps PCs, workstations, file servers, print
servers, or other hardware. When powered up, each of
the router’s 10/100 ports will automatically adjust to
the proper speed, as determined by the speed of the
hardware or node connected to the port.

Connect each of your PCs, workstations, file servers,
print servers, or other network nodes to the Analog
Router one by one. Each node should be connected to
the Ethernet connections on the router with a straight­through, RJ-45, Category 5 cable. Each cable should
be less than 100 meters (328 feet), in length. Ready­to-use network cables of various lengths can be pur­chased at most computer stores. If you wish to crimp
your own cabling for custom sites or lengths, see the
appendix for cabling specifications.

When connecting a PC to the Analog Router, either
the computer or the router must be powered OFF. If
both the computer and the router are turned on while
the connection is completed, the network may act
erratically. If this happens, reset the router by turning
it off and then back on again.

If the 4-Port Analog Router’s uplink switch next to the
last port is enabled (if the button is pushed in), then
the port on the router closest to the AC adapter jack is
set to be connected to another hub or switch. If you’d
like to use the port to connect a workstation, simply
release the uplink button.

10

Connecting the Router to Other Hubs or
Switches

If you are connecting the Analog Router to a Fast
Ethernet hub, remember that Fast Ethernet rules only
allow two hubs to be connected together, or cascaded,
within a single repeater domain. This means you can
only uplink to or from one other device on a Fast
Ethernet network.

To uplink the router, simply push the uplink button on
the back of the router next to the AC por t. You may
need to use a pen or other small pointed object.
Connect a regular straight-through Category 5 cable
from the Analog Router’s uplink port to any regular
network port on the hub or switch being uplinked. The
Analog Router will automatically determine the opti­mum speed of the device being attached to it.

The router can be uplinked to other 100Mbps hubs at
a distance of 5 meters (16.4 feet) -- just like Fast
Ethernet or 10/100 hubs.

11

Protocol Setup For Windows
95 and 98

Each PC that will be connecting to the Internet must
have TCP/IP installed and it must be configured to the
following settings.

The instructions below apply to Windows 95 and 98.
Suggested setup instructions for Windows NT 4.0 are
listed in the Appendix of this guide. The setup, config­uration, and troubleshooting of TCP/IP on any other
operating system is strictly up to the user. Refer to the
documentation and instructions accompanied by the
operating system.

1. Click on the Start button, select Settings, Control

Panel. The Control Panel window will be displayed.

2. Double-click on the Network icon.

3. Check the list of installed network components. If

TCP/IP is not installed for your network adapter,
install it now by clicking the Add button. If TCP/IP is
already installed, go to step 7.

4. In the Network Component Type dialog box, select

Protocol and click Add.

5. In the Select Network Protocol dialog box, select

Microsoft.

6. In the Network Protocols area of the same dialog

box, select TCP/IP, then click OK. You may need to
provide your Windows 95 or 98 CD to complete the
installation.

12

7. Highlight TCP/IP in the list of Network

Components by clicking on it once, and then click on
the Properties button.

8. Check each of the tabs, and verify the following set-

tings:

• Bindings: Make sure that Client for Microsoft

Networks and File and printer sharing for Microsoft
Networks are selected

• Gateway: All fields are blank

• DNS Configuration: Disable DNS is selected

• WINS Configuration: Make sure that Use DHCP

for WINS Resolution is selected.

• IP Address: Make sure that Obtain IP address

automatically is selected

Click OK to the TCP/IP Properties window. Click OK
to the Network window. Windows may need to copy
some files and ask you for the Windows 95/98 CD­ROM. After you are at the desktop, reboot your PC. If
Windows asks you to restart automatically, click Yes.

To view your TCP/IP settings after the computer has
rebooted, click on Start, then Run. Type WINIPCFG
and click OK.

13

Internet Settings

If you were previously using a dialup adapter or proxy
software on your computer to connect to the Internet,
you must make changes to your Internet settings.

1. Click the Start button, select Setting, then Control

Panel. The Control Panel window will display.

2. Double-click on the Internet icon.

3. Click on the Connections tab. If the option to

choose a dialup adapter or the option for a proxy serv­er is selected, remove the check or the bullets from
these options. If you have the option to connect to the
Internet via the network, select it (the options that
appear will be different based on the version of the
browser).

4. Click OK and reboot your system.

To set up the router, you will need to have your ISP’s
phone number, your account name, and your pass­word. DNS IP addresses may also be required for
Windows NT users.

After the EtherFast 10/100 4-Por t Analog Router is
configured, all you have to do to access the Internet is
open your browser. The router does the rest for you.

14

Configuring the Router

1. Open your Internet browser on one of the worksta-

tions you configured for TCP/IP on the previous pages.

2. Use your browser's Open command to enter the fol-

lowing URL: http://192.168.168.230

3. The default password "password" is already entered

for you. Click Log On! button to log on. Don't forget
to use the System Tools menu later to change the pass­word. Do Not click “check here to install additional
features.”

4. You may be asked to choose from a list of menu

items. Choose Basic Internet Access (the default) only
and then press the Apply button.

5. You may reduce or close the Status window. On the

Main menu (on the left hand side of your browser
screen), select the modem (Modem 1, Modem 2,
Modem 3, Modem 4) you want to make connection
with and following screen will appear.

15

6. Input the modem initialization string in the

Initialization String box. In most cases, you do not
need to put in any initialization string. If you are in
doubt, just leave it blank or consult the user manual of
the connected modem.

7. For Modem Speed, in most cases, Auto will work

with most 56K modems (K56flex, X2 or V.90).
However, for some slow speed modems (28.8K,

14.4K, 9600), you might need to manually select a

lower speed (e.g. 19200). You might achieve the high­est possible speed by testing it in step 13 later.

8. On the Main menu, click on Connection Profiles

under the Configure Access heading.

See a picture of the screen on the next page.

16

9. If you had previously set up a profile, highlight

New and click Next. For Profile Name, enter the
name of your ISP or any other name that makes sense
to you.

10. For Remote Phone Number, enter the phone

number of your ISP.

11. For My System Name, enter your username

assigned by your ISP.

12. For My System Password, enter the password for

your ISP account.

13. Use the pull down menu to select a connected

modem port for the Analog Router to use when testing
the account information and connection. Click APPLY
and TEST button. The Message Window will tell you
if your connection is successful.

Follow step 5 to step 13 above to setup all the other
modems and ISP accounts, if any.

17

Using the Router Status Windows
Current Status

This window pops up in a seperate browser window
every time you log on to the router.

This window can be closed or reduced if you don’t
need it. It displays the number of packets sent or
received by the LAN and the modem(s). These num­bers can be reset by highlighting the option and click­ing on the Clear button. If you highlight a modem
connection and click on Disconnect, that particular
connection will be reset. Disconnecting a modem will
drop one of your Internet connections.

18

Connection Log

This window displays log of the connections.

This window is used mainly for troubleshooting and
administration purposes.

Message Window

This window displays any messages sent by the router
to the system. It will display error messages, com­mand strings, and general connection status informa­tion.

You will notice that the user interface for the EtherFast
10/100 4-Port Analog Router utilizes frames. On the
right hand side of your screen, the message window
occupies the lower frame. Also, the message window
frame is resizable.

19

Advanced Features

You can fully configure your EtherFast 10/100 4-Port
Analog Router by accessing the advanced user menus
in the Web-based configuration program. Some of
these features require a certain amount of expertise to
configure properly -- if you are not sure how to set up
some of the Analog Router’s features, either leave
them alone or consult your network administrator.

Allowed Access Times

This feature allows network administrators to select
the specific times that users will be allowed to access
the Internet through the Analog Router.

At the main menu, select Allowed Access Times under
the Configure Access heading. You will see the follow­ing screen:

Set the times to whatever setting you would like. In
order for the acess limitations to work properly, you
must also configure the Analog Router’s clock on page

22.

20

Router Identity

Under the Router Identity menu, you can set the name,
location, and other variables for your EtherFast 10/100
4-Port Analog Router. To access the menu, click on
Router Identity under the System Settings heading.

You will be able to enter the data shown below:

Enter any settings that you’d like, then click on the
Apply button.

21

Set Router Clock

The EtherFast 10/100 4-Por t Analog Router lets you
configure the router’s internal clock.

To do this, click on Set Router Clock under the
System Settings heading.

Choose the correct time zone for your location and
click Apply.

22

Customize Menu

With the Customize Menu, it is possible to configure
the EtherFast 10/100 4-Por t Analog Router to perform
advanced functions like IPX routing, dial-in access,
and remote access. These tasks should only be
attempted if you have hands-on experience in their
execution.

You will notice in the example that the first two fea­tures on the menu are active. Any of the features other
than Basic Internet Access (the first item on the list)
that require you to manually enable them are to be
used by experienced system administrators only.
Additionally, Linksys
technical support for these extra features.

will not at this time provide any

To access this menu, click on Customize Menu under
the System Settings heading. When you are finished,
click Apply. See the Appendix of this guide for more
information about the unsupported functions.

Linksys only provides technical support for Basic
Internet Access. The configuration of all other options
is solely up to the user.

23

Save or Reset Settings

If you are making changes to your EtherFast 10/100 4­Port Analog Router, it is a good idea to save your set­tings. The router is capable of “hard storage” -- it
writes your settings to it’s internal f ir mware. After you
save your settings, you can safely unplug the router or
move it to a different location and your settings will
remain intact.

You can also use this menu to restore the Analog
Router to its factory defaults. This feature is helpful if
you make a mistake that you cannot fix. All of your
work will be erased if you reset the router, including
your settings for your ISP accounts and all of your
modem information.

To access this menu, click on Save or Reset Settings
under the System Settings heading.

Click on the correct button to execute the Save or
Reset features.

24

Reboot Router

This feature will reboot the router and reset all of its
modem connections. A reboot will leave the router’s
RJ-45 network connections intact, but any user that is
accessing the Internet through the router will be
bumped off. In some cases, a router reboot is neces­sary to remedy lock-ups or to clear the memory
buffers.

To reboot the router, click on Reboot Router under
the System Settings heading.

You will be asked to confir m the reboot. Do so by
clicking Yes.

25

Upgrade Router

The upgrade feature can be used when fir mware
upgrades are made available by Linksys. Check the
Linksys website at http://www.linksys.com regularly
to collect the lastest version of firmware for the
EtherFast 10/100 4-Por t Analog Router.

Detailed download and installation instructions will be
provided with each version of firmware.

To access the upgrade window, click on Upgrade
Router under the System Settings heading.

26

Change Password

This window lets you change the login password for
your EtherFast Analog Router. It is recommended that
you perform this function before logging out of your
first session.

To access the password window, click on Change
Password under the System Settings heading.

You will be asked to supply your surrent password,
then the new password. You must confir m your new
password by typing it twice. Click Change Password
to make the change. Remeber to save your settings
when you are finished. Write down your new password
and keep it in a safe place.

27

Getting Help

If you have questions about your Analog Router or if
you would like to call or email Linksys with a specific
technical question, click on Get Technical Support
under the Help heading. This will direct your worksta­tion to the Linksys web site where you will find sub­stantial support databases, as well as various ways to
contact us.

28

Using the Command Line Interface

The EtherFast 10/100 4-Por t Analog Router can be
configured via a null modem serial connection and a
PC running a terminal program.

The router is then instructed through a command line
interface instead of the Web interface. In order to
obtain documents on how to set up and use the com­mand line interface, go to the Linksys web site at
http://www.linksys.com

Please note that Linksys only provides limited techni­cal support for the command line itnerface of the
EtherFast 10/100 4-Por t Analog Router.

29

LEDs

Your EtherFast 10/100 4-Port Analog Router is
equipped with eleven “smart” LEDs that you can use
for diagnostic purposes. They are explained below.

• Modem Activity

These LEDs will light up if the corresponding modem
port is currently hosting an active modem connection.
The LED flickers when the modem transfers or
receives data. The LED will be off the rest of the time
(even if the modem is connected and turned on).

• LAN Link/Act/Speed

These LEDs will light up red if a 100Mbps connection
is detected on the corresponding RJ-45 10/100 port. If
a 10Mbps connection is detected, the light will be
green. The LEDs will flicker when activity is detected
on any of the 10/100 connections.

• Collision

The 10M LED will light up when collisions are detect­ed on the router’s 10Mbps backplane. The 100M LED
will light up when collisions are detected on the
router’s 100Mbps backplane.

• Power

Indicates that the router is powered on.

30

Appendix

Twisted-Pair Cabling

There are different grades, or categories, of twisted­pair cabling. Category 5 is the most reliable and wide­ly compatible, and is highly recommended. Category 3
is a good second choice. Straight-through cables are
used for connecting computers to a hub. Crossed
cables are used for connecting a hub to another hub
(there is an exception: some hubs have a built-in
uplink port that is crossed internally, which allows you
to uplink hubs together with a straight cable instead).

You can buy Category 5 cabling that is pre-made, or
cut and crimp your own. Category 5 cables can be pur­chased or crimped as either straight-through or
crossed. A Category 5 cable has 8 thin, color-coded
wires inside that run from one end of the cable to the
other. All 8 wires are used. In a straight-through cable,
wires 1, 2, 3, and 6 at one end of the cable are also
wires 1, 2, 3, and 6 at
the other end. In a
crossed cable, the order
of the wires change
from one end to the
other: wire 1 becomes
3, and 2 becomes 6.

The color code for the 4 wires should be as follows:

Wire 1, white with an orange stripe; Wire 2, orange;
Wire 3, white with a green stripe; Wire 6, green. The
other four wires have to be connected as follows: Wire
4, blue; Wire 5, white with a blue stripe; Wire7, white
with a brown stripe, Wire 8, brown.

31

To figure out which wire is
wire number 1, hold the cable
so that the end of the plastic
RJ-45 tip (the part that goes
into a wall jack first) is facing
away from you. Flip the clip so
that the copper side faces up
(the springy clip will now be
parallel to the floor). When
looking down on the coppers,
wire 1 will be on the far left.

32

Protocol Setup For Windows NT

The instructions below apply to Windows NT. These
instructions are for your reference. The setup, configu­ration, and troubleshooting of TCP/IP on NT may dif­fer if you are on an existing network or if the comput­er you are using has more than one network adapter
installed. Refer to the documentation and instructions
accompanied by the operating system or contact your
system administrator for any special settings.

1. Boot up NT and log in as administrator.

2. Click on the Start button, select Settings, Control

Panel. The Control Panel window will be displayed.

3. Double-click on the Network icon.

4. Click on Protocols. Check the list of installed net-

work components. If TCP/IP is not installed for your
network adapter, install it now by clicking the Add
button. If TCP/IP is already installed, go to step 6.

5. In the Select Network Protocol dialog box, select

TCP/IP Protocol then click OK. You may need to
provide your NT CD-ROM to complete the installa­tion.

6. Highlight TCP/IP in the list of Network

Components by clicking on it once, and then click on
the Properties button.

33

7. Check each of the tabs, and verify the following set-

tings:

• IP Address: Make sure that Obtain an IP address

from DHCP server is selected.

• DNS: You may have to enter the IP address of the

router and/or the DNS IP address of your ISP.

• WINS Address: Leave all fields blank.

Click OK to the TCP/IP Properties window. Click on
Bindings. Click OK to the Network window.
Windows may need to copy some files and ask you for
the Windows NT CD-ROM. After you are at the desk­top, reboot your PC. If Windows asks you to restart
automatically, click Yes.

You may need to manually enter your DNS entries
later. You can get these by contacting your Internet
Service Provider.

34

Unsupported Advanced Features

The following features are for use by network admin­istrators only. These options can be enabled through
the Customize Menu option. Linksys will not pro
any technical support for these features. Linksys only
provides technical support for Basic Internet Access.
The configuration proceedures for all the options list­ed on pages 35 through 37 are solely up to the user.

Advanced Setup

This feature is for network administrators only. It will
only display if Internet Access with Advanced IP
Configuration is selected in the Customize menu. You
should use this feature only if you need to configure
special IP or DNS settings.

To access the Advanced Setup menu, click on
Advanced Setup under the Configure Access heading.

vide

Enter the appropriate settings, then click on the Apply
button.

35

IPX Configuration

You can manually configure the EtherFast 10/100 4­Port Analog Router’s IPX settings for intra-network
communication. This option is available when Share
NetWare (IPX) Resource is selected in the Customize
Menu.

You can set the frame type, IPX network number, and
you can enable or disable the IPX RIP/SAP setting.

36

Remote Dial-Up Configuration

You can set up your 4-Port Analog Router to allow
remote dial-up access. Click on Connection Profile
under the Configure Access Heading. Enter your
desired profile name and other infor mation.

You can configure the router to allow mulitple user
dial-up access or single-user dial-up access.

Multi-user

Single User

37

Troubleshooting

My modem doesn’t dial out:

• Check the cable connection and wiring. Use a differ-

ent cable or phone wire. Reset the modem and the
router.

My modem dials out but a connection can't be
established with the ISP:

• See the error message that appears in the message

window. If it is related to password authentication,
check your user name and password. If connection
can't be established, check the phone number or try a
different phone number from your ISP. You may have
to modify the speed on the modem setting by changing
the Auto mode to a different speed.

The modem LED on the front of the router
doesn't come on when the modem is connect­ed and powered on:

• The LED for the modem only turns on when the

modem is connected to the ISP. If the modem is idle
(if it hasn't dialed out yet) the LED will be off.

The Collision LEDs flicker constantly

• Check your RJ-45 cables to make sure they are prop-

erly wired. Check your network cards for faulty con­nections. Try connecting to a different Ethernet port
on the router. Turn the router off and then turn it back
on again.

38

The computer connected to port 1 will not link
see the rest of the LAN and the Link\Activity
LED on the front of the router is not lit:

• You may have the port set in Uplink mode. When the

Uplink button is pushed in, port 1 should be used to
connect to another hub or switch. Simply push the but­ton out using a small screw driver, paper clip or a
small sharp object like a pen.

I get DHCP errors on one of the computers
connected to the router:

• Check the network card in the computer to make

sure it is setup properly. Remove and reinstall TCP/IP
on that computer. If you had proxy software installed
on the computer previously, follow the instructions
that came with the software to restore the computer to
its previous settings.

None of the computers can obtain the proper IP:

• The DHCP portion of the router may be disabled.

Setup a computer with the following TCP/IP settings
instead of using the DHCP options:

IP Address 192.168.168.240
Subnet Mask 255.255.255.0
Gateway 192.168.168.230

Reboot the computer. Run WINIPCFG or IPCONFIG
to verify the above settings. Use your web browser to
access the router. Restore the router to its original fac­tory settings by using the using the Save or Reset
Settings option under the System Settings header, (see
page 24).

39

Specifications

Model EFROU44

10/100 4-Port Analog Router

Standard IEEE 802.3, IEEE 802.3u,

RS-232C, v.34, v.90

Protocol Asyn PPP Modem Connection,

CSMA/CD

Max Speed

100Mbps (for 100BaseTX)
10Mbps (for 10BaseT)
115200bps (serial)

Ports 4 combo RJ-45 10BaseT/

100BaseTX Ports
4 RJ-45 Modem Ports
1 9-Pin Serial Console Port

Cabling

10BaseT Category 3 or 5 UTP/STP
100BaseTX Category 5 UTP/STP

LED Indicators Power, 100Mbps Collison,

10Mbps Collision, Modem Act,
LAN Link/Act/Speed

Power 12V DC

Dimensions 2.5” x 5.4” x 1.4”

Unit Weight 1 lb.

40

Customer Support

For help with the installation or operation of your
EtherFast 10/100 4-Por t Analog Router, contact
Linksys Customer Support at one of the phone num­bers or Internet addresses below.

Customer Support 949-261-1288
Fax [phone]
Bulletin Board 949-261-2888

(33.6K, 8-N-1)

Email [e-mail]
Web http://www.linksys.com
FTP Site ftp.linksys.com

41

http://www.linksys.com

© Copyright 1999 Linksys, All Rights Reserved.

Printed in the USA.