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
Introduction2
Features3
Planning Y our Network7
Cabling Rules8
Hardware Setup9
Connecting Nodes and Uplinking10
Protocol Setup for Windows 98 and 9512
Internet Settings14
Configuring the Router15
Status Windows18
Allow ed Access T imes20
Router Identity21
Set Router Clock22
Customize Menu23
Save or Reset Settings24
Reboot Router25
Upgrade Router26
Change Password27
Getting Help28
Command Line Interface29
LEDs30
Appendix31
Twisted Pair Cabling31
Windows NT Setup33
Unsupported Advanced Features Setup35
Trouble Shooting38
Specifications40
Customer Support41
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
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