BEFSRU31 User Guide.Qxd

BEFSR11 BEFSR41 v2 BEFSRU31 Use this User Guide to install the following Linksys product(s): Routers Cable/DSL EtherFast Instant Broadband™ Series EtherFast 1-Port Cable/DSL Router EtherFast Cable/DSL Router with 10/100 4-Port Switch EtherFast Cable/DSL Router with USB Port and 10/100 3-Port Switch ® User Guide COPYRIGHT & TRADEMARKS Copyright © 2000 Linksys, All Rights Reserved. Instant Broadband 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 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 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 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 oYu ewr 15 Configuring Your Router’s 21 USB Port 11 to Your Network 8 Router Connecting Your Cable/DSL 5 Router EtherFast Cable/DSL Getting to Know the 3-Port 1 Router EtherFast Cable/DSL Getting to Know the 1-Port Router EtherFast Cable/DSL Getting to Know the 4-Port Introduction Table of Contents vriw15 15 LANs and WANs Overview PAdess AQikLso 16 20 18 Uplinking: Connecting More Devices to Your Router Connecting Your Booting Up Hardware Together & Addresses: A Quick Lesson IP h S cn12 11 13 8 9 5 The 3-Port Router’s Front Panel LEDs Icon The USB 4 6 The 3-Port Router’s Rear Panel 1 3 2 The 1-Port Router’s Front Panel LEDs The 1-Port Router’s Rear Panel 4 3 The 4-Port Router’s Front Panel LEDs 2 The 4-Port Router’s Rear Panel 1 Network Requirements Package Contents for the 3-Port Router Network Requirements Package Contents for the 1-Port Router Network Requirements Package Contents for the 4-Port Router Features The Linksys EtherFast Cable/DSL Router

Windows 29 Millennium Configuration Windows 25 2000 Configuration Windows 21 98 Configuration

Instant Broadband Series Appendix 61 Troubleshooting 55 33 38 Router’s Web-based Utility The Cable/DSL Cable/DSL Router Configuring Your Network with the Routers EtherFast Cable/DSL ofgrn orCbeDLRue 34 36 Router Configuring Your PCs to Connect the Cable/DSL Router YourConfiguring Cable/DSL utmrSpot71 70 70 69 69 68 66 68 64 67 54 55 Customer Support 57 53 Environmental Specifications 51 3-Port Router Specifications Environmental Specifications 47 49 50 44 1-Port Router Specifications 61 43 Environmental Specifications 4-Port Router Specifications 41 Crimping Your Own Network Cables Twisted-Pair Cabling Installing the TCP/IP Protocol How to Ping Your Web ISP’sAddresses E-mail & FrequentlyQuestions Asked Common Problems Logging DMZ Hosting 38 Static Routing Dynamic Routing IP Forwarding IP Filtering Help 45 DHCP Status Password Setup 39 Quick and Easy Router Administration 1 • • • • • • • • • • • • Features blaze than you along faster ever thought possible. networkand share internal data. Link it all together and your network will Now all of your PCs can enjoy connections broadband Internet lightning-fast conference, and much more. with IP Filtering, access to the Internet as well as play games, video- Internet tored and filtered. Your to blockusers' internal Router can also be configured from being accessed by users. external All incoming data packets are moni- protecting your as yourfirewall, Router also serves network’s Internet PCs Cable/DSL Router is the only visible network device on the Internet. The networkas a DHCP server,an Ethernet the EtherFast backbone. Configurable ing a network connection and to of PCs to a high-speed broadband Internet Router is the perfect solution for connect- Linksys! The EtherFast Cable/DSL on the purchase of your Congratulations EtherFast Cable/DSL Router from The Linksys EtherFast Cable/DSL Router Introduction Such as Video-Conferencing Gaming and Internet Administrators Can Block Specific Internal Users' Internet Users' Internet Internal Access Administrators Can Block Specific DMZ Hosting Feature EnablesMultimedia Internet Applications Compatible with Virtually All Standard Internet Applications on as a DHCP Server Configurable Your Network 10/100 Switch Speeds Up Your Gaming and Multimedia Connections IPSec Pass-Through for Supports Virtual Private Networking (VPNs) Configurable Configurable Through a PC’s Web Browser Using Netscape Navigator 4.0 Firewall Protects Your PCs Fromon the Internet Outside Intruders Connects All of Your with Just One IP PCs to the Internet Address Equipped With a 3 or 4-Port 10/100 Switch (BEFSRU31 & BEFSR41 v2 NetworkConnects to a Broadband Modem and an Ethernet Backbone Administer Your Router Remotely Over the Internet Explorer 4.0 or Internet only)

(BEFSRU31 & BEFSR41 v2 only)

Instant Broadband Series • • • • • Network Requirements • • • • Router Package Contents for the 4-Port Routers EtherFast Cable/DSL TCP/IP network protocol installed on each PC Internet Explorer 4.0 and higher,Internet or Netscape Navigator 4.0 and higher UTP CAT 5 network cables with RJ-45 connectors card or adapter installed One PC with a 10Mbps or 10/100 Mbps Ethernet connection, with a cable One RJ-45 broadband Internet or DSL modem One User Guide and Registration Card One Power Cord One Power Adapter One EtherFast Cable/DSL Router with 10/100 4-Port Switch Version Explorer and 5.5 for Internet Version 4.7 for Netscape Navigator are highly recommended for optimal results. 2 3 • • • • • Network Requirements • • • Router Package Contents for the 1-Port TCP/IP network protocol installed on each PC Internet Explorer 4.0 and higher,Internet or Netscape Navigator 4.0 and higher UTP CAT 5 network cables with RJ-45 connectors card or adapter installed One PC with a 10/100 Mbps Ethernet connection, with a cable One RJ-45 broadband Internet or DSL modem One User Guide and Registration Card One Power Adapter One EtherFast 10/100 1-Port Cable/DSL Router Version Explorer and 5.5 for Internet Version 4.7 for Netscape

Navigator are highly recommended for optimal results.

Instant Broadband Series • • • Routers EtherFast Cable/DSL • • Network Requirements • • • • • Router Package Contents for the 3-Port TCP/IP network protocol installed on each PC Internet Explorer 4.0 and higher,Internet or Netscape Navigator 4.0 and higher UTP CAT 5 network cables with RJ-45 connectors One PC with a 10/100 Mbps Ethernet card or adapter installed,One PC with a 10/100 Mbps Ethernet connection, with a cable One RJ-45 broadband Internet or DSL modem One User Guide and Registration Card One Power Adapter One 3.5” Floppy Disk for USB Setup One USB Cable One EtherFast Cable/DSL Router with USB Port & 10/100 3-Port Switch or a PC with USB port Version Explorer and 5.5 for Internet Version 4.7 for Netscape Navigator are highly recommended for optimal results. 4 5 Power Uplink Ports 1-4 N WA The 4-Port Router’s Ports rear panel of your Router. Your Router’s where ports, network cables are connected, are located on the Router’sThe 4-Port Rear Panel EtherFast Cable/DSL Router Getting to Know the 4-Port The work. If the other device. See page 10 for more on uplinking. ply a cable running from the to another Router, switch or a hub is done by sim- by connecting to another switch or hub. Uplinking The have internally shared wiring. Uplink and remote hard drives. If port nect to network devices, such as PCs, print servers, These four modem. connect your cable or DSL The to the power adapter before plugging it in. power adapter. Be sure to connect the power cord Power Uplink AN WA Uplink port will not work-port these two shared ports (Wide Area Network) is where port you LAN port is where port you will connect the port is used to expand yourport network port is being used,port Port 1 will not (Local Area Network) con- ports

BEFSR41 v2 shown above Instant Broadband Series Uplink 1 is being used, the

port to the port Power The LAN Indicators Router’s4-Port Front Panel LEDs Routers EtherFast Cable/DSL 100 Full/Col Link/Act Green 10 Mbps. If this LED is not lighting up, then your connection speed is port. 100Mbps connection is made through the corresponding Orange have problems. your connection. See the Troubleshooting section if you If this LED flickers too often, there may be a problem with Infrequent collisions are normal. flickers, the connection is experiencing collisions. the LED in Full Duplex mode. If is running port the corresponding is lit up continuously, the connection made through LED Green receiving data over that port. is flickering, the Router is actively sending or the LED Green ered on. to a device through the corresponding port ( port to a device through the corresponding is continuously lit up, the Router is successfully connected . The . The . The . The Power Full/Col Link/Act 100 LED lights up when a successful E lights up when the Router is pow- LED LED also serves twoLED also serves If this purposes. LED serves twoLED serves If the LED purposes. BEFSR41 v2 shown above 1 , 2 , 3 or 4 ). If 6 7 Diag Act Link Indicators The WAN * The The Reset Button down until the orange all other troubleshooting measures, press the 2. ton on your PC to reboot it. clears up any jammed connections, and is similar to pressing the Reset 1. Cable/DSL Router’s Web-based Utility section. through the defaults Web-basedSee also restoring factory Utility in the nections. Leaving the power off for too long could result in the loss of network con- including the IP addresses you entered. and clear all of the Router’s defaults This will restore factory settings, completely. 3-Port Router and the 1-Port Router. If you are experiencing extreme problems with your Router and have tried If your Router is having problemspress the connecting to the Internet, Reset button in for just a moment with paper clip or pencil tip. This Button is located on the front panel of 4-Port Router, and the rear panel of Orange Internet). receiving data over the broadband Green or network. tion is made between the Router and your broadband device Green see the Troubleshooting section. stays on for an abnormally long period of time, If this LED tion of the diagnosis. the Router’s Utility. off It will turn upon successful comple- also when you click through its self-diagnosis mode during every boot-up, and Diag . The . The * . The The LED on the front panel turns on and offLED on the front panel turns Act Link Diag Reset E flickers when the Router is sending or LED E lights up when a successful connec- LED LED lights up when the Router goes button can be used in one of two ways. Apply Reset to update any changes made in Button in and hold it

AN WA Instant Broadband Series port (to the port Reset

but- AN WA The One-Port Router’s Ports Routers EtherFast Cable/DSL Power LAN are made, and where you can reset or configure the Router’sare made, and where you can reset or configure The rear panel of the Router is where all of the Router’s cabling connections Router’sThe One-Port Rear Panel Router EtherFast Cable/DSL Getting to Know the 1-Port The The PCs to that hub or switch. hub or switch to your Router, then connect your you have more than one PC, connect an Ethernet connect your Router to a PC, hub, or switch. If The onc orcbeo S modem. connect your cable or DSL AN WA Power LAN (Local Area Network) is where port you (Wide Area Network) is where port you port connects to the powerport adapter. BEFSR11 shown above LAN port. 8 9 Power The LAN Indicators Router’sThe 1-Port Front Panel LEDs The Crossover Switch The Reset Button Switches Buttons &

Standard are ports straight-throughand uplink crossover ports, ports. cable into a straight-throughand the other end crossover port, port. as a router and a switch, When“ If the ured, switching the Crossover try Switch to the other side. If up, you know that your mode setting is correct. N L

N t

port’s

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

k l i

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

L k L

i i i

n n n

k g k

,” or connecting two pieces of network hardware together, such E on the front panel of the Router. LED Green powered on. . The a

standard por straight-through ( If you are connecting the Router’s s directly to a PC or an uplink por mode ( between crossover mode ( The Crossover Switch ( Details on the If you are connecting the Router’s

witch

n Power n

, choose the crossover (

l l II r ). u l LED lights up green when lights up green the Router is LED e

o t on a hub or s f

t Reset h u m II b ) mode. is to plug one end of a network button are found on page 7. X II X

witch Instant Broadband Series ) and straight-through ) toggles the BEFSR11 shown above X ) mode.

, choose the t on a hub or

LAN LAN

LED lights port to a port Port LAN

port Diag Act Link Indicators The WAN 10/100 Full/Col Routers EtherFast Cable/DSL Link/Act lights up when you press the successful completion of the diagnosis. The offits self-diagnostic test during boot-up. It will turn upon Red receiving data over the broadband Green device or network. tion is made between the Router and your Broadband Green not light up. at 10Mbps, the If a connection is running port. 100Mbps connection is made through the corresponding Orange encounter problems. your connection. See Troubleshooting on page 56 if you If this LED flickers too often, there may be a problem with experiencing collisions. Infrequent collisions are normal. flickers, the connection is If the LED fully maintained. connection is being success- port remains lit, a LAN LED Green LAN the Router is actively sending or receiving data through the see the Troubleshooting section. stays on for an abnormally long period of time, If this LED save any changes made in the Web-based Utility. Green to a device through the is continuously lit up, the Router is successfully connected . The port. . The . The . The . The . The Diag Act Link Full/Col Link/Act 10/100 LED lights up when the Router goes through E flickers when the Router is sending or LED E lights up when a successful connec- LED LED lights up when a successful LED also serves twoLED also serves If this purposes. LED serves twoLED serves If the LED purposes. LAN Reset ot fteLDis flickering, If the LED port. AN WA button or click port. 10/100 Diag LED will LED also Apply to 10 11 computer stores. See your PC’s User Guide for instructions. and attach it to your USB port PC’s motherboard using hardware purchased at retail Other motherboards have but no ports. USB interfaces, You can install your own on the motherboard or a menu option in BIOS to enable a PC’s USB port. disabled If yourdoesn’t USB port. port seem to be working, there may be jumpers Also, your PC must have installed and enabled. a USB port Some PCs may have a ment. Millennium installed on yourin a PC. USB cannot run Windows 95 or NT environ- To on the 3-Port use the USB port Router, you must have Windows 98, 2000, or USB Compatibility with Your PC USB The 3-Port Router’s Ports Router’sThe 3-Port Rear Panel Ports Router EtherFast Cable/DSL Getting to Know the 3-Port USB ports do not workUSB ports on PCs running Millennium. must be running Windows 98, 2000, or for your PC. To work your with USB ports, PC a networktion without even adapter configuring you to enjoy an immediate, plug-and-play connec- a USB-ready PC or USB hub. This allows (TypeThe USB port B - slave) can connect to Windows 95 or Windows NT

BEFSRU31 shown above Instant Broadband Series

. AN WA Uplink Routers EtherFast Cable/DSL Power ,2 3 2, 1, on the rear panel of your square and connects to the USB port Router. plugs into your PC’s USB port. Type B, the slave connector, resembles a connectors. Type A, the master connector, is shaped like a rectangle and Your 3-Port Router comes with a USB cable that has two different types of or connector.This USB icon denotes the presence of a port Icon The USB USB Type A This time. wiring, you can only use one of the two at a ports right next to it share internal and the standard port for your network devices. Since the expansion whenfor port youout of open ports run The Ethernet port. Ethernet switches, or any print servers, other device with an The from any other port. modem. These three Uplink Power WAN Your modem connection will not work port connects to your port cable or DSL port connects to the powerport adapter. LAN port connects to another hub or switch port ports connect to your ports PCs, hubs, USB Type B Uplink port port 12 13 Link/Act Power Power The LAN Indicators Router’sThe 3-Port Front Panel LEDs The Reset Button Buttons Full/Col Details on the Reset button are found page 7. sponding RJ-45 port ( sponding RJ-45 port cessfully connected to a device through the corre- the LED is continuously lit up, the Router is suc- Green. The Router is powered on. Green Troubleshooting section if you have problems. problem with your connection. See the If this LED flickers too often, there may be a collisions. Infrequent collisions are normal. is flickering, the connection is experiencing LED cessfully in Full Duplex mode. If the running is suc- port tion made through the corresponding is continuously lit up, the connec- es. If this LED Green and from the network. is sending or receivingers, then that port data to . The . The Power Full/Col Link/Act LED lights up green when lights up green the LED LED also serves twoLED also serves purpos- 1 LED serves twoLED serves If purposes. , 2

, or Instant Broadband Series 3

). If the LED flick- Link The WAN Indicators USB 100 Routers EtherFast Cable/DSL Diag Act Green Orange receiving data over the broadband Green or network. tion is made between the Router and your broadband device see the Troubleshooting section. stays on for an abnormally long period of time, If this LED click will also light up when you make changes in the Utility and off upon successful completion of the diagnosis. This LED through its self-diagnostic test during boot-up. It will turn Apply . The . The . The Link Act to save them. Diag E flickers when the Router is sending or LED E lights up when a successful connec- LED USB hub, or other device. is successfullyport connected to a PC, The tion speed is 10 Mbps. LED does not light up, then your connec- If this port. through the corresponding successful 100Mbps connection is made Orange LED lights up when the Router goes USB . The LED lights up when the USB 100 AN WA LED lights up when a port. 14 15 the Internet, or the the Internet, LAN.”Guide sometimes calls the “internal The other, public side is made up of your private Think of your Router as a network device side is with two sides: the first lates the data that travels between these two networks. Area Network (WAN) Network (LAN) In this instance, your EtherFast Cable/DSL Router connects your Simply put, a LANs and WANs Router. your EtherFast Cable/DSL Once you have the above values, you can begin the Installation and Setup of with you after the installation. Or, you can call your ISP to request the data. The installation technician from your ISP should have left this information Router: install the Cable/DSL You will need the following Provider) data from yourService ISP (Internet to addresses that the Router assigns them. worked PCs to accept the IP you will have your net- to set some values for the Router and also configure simply plugging hardware together. Since the Router acts as a DHCP server, Router’s setup consists of more than Unlike a hub or switch, the Cable/DSL Overview Your Network Router to Connecting the Cable/DSL office. office. • • • • • Your Primary DNS Server IP address(es) Your Default Gateway Your Subnet Mask fixed Your broadband-configured PCs’ orbodadcniue C’Computer Name and WorkgroupYour Name PCs’ broadband-configured nentI Address Internet IP router , or the group of PCs in your home or office, to the of PCs in your , or the group home office, Wide Area Network (WAN) is a network device that connects two networks together. , that is, the Internet. , that is, the Internet. Your Router processes and regu- Local Area Network (LAN) } , outside of your home or

Only if applicable Instant Broadband Series of PCs, which this User Local Area

Wide routers, requires an deviceEvery on an IP-based network, and including PCs, print servers, What’s an IP Address? Quick Addressing: A Lesson IP service. the maximum speed for cableMbps, because 10Mbps is currently and DSL or 100 Mbps, whereas the broadband port, WAN transmits data at 10 port, and the Internet port(s) Remember that your Router’s connect to two ports sides: your 10/100 your LAN, internal or network, is private. users on the public,side cannot “see” your Internet PCs. This is why Your Router’s (NAT) firewall protects your network of PCs with security so Routers EtherFast Cable/DSL Router. your account. If so, you will need that static IP address when configuring address to your out if they havetact your ISP to find assigned a static IP connection, con- Internet If you use your Router to share your cable or DSL PCs or print servers. as server commonly used with network devices such same IP address. Static addresses are you assigned it to will always have that static IP addressing address remains valid until you disable it, device on the network. Since a static IP that you assign manually to a PC or other A Addresses Static IP address to your network devices. There are two ways of assigning an IP also requires an IP address. Internet network, every PC that logs on to the is simplySince the Internet one huge global its “location,” or address, on the network. static IP address IP address is a fixed IP address is a fixed ensures that the device AN WA port. port. transmit data at 10Mbps The LAN port(s) to identify WAN Requests ble - see to the Internet your Router and network seem invisi- for the Router can be blocked, so that However, even this WAN IP address address. network is the Router’s WAN IP for your be seen from the Internet address that can (NAT), the only IP security Since the Router has firewall IP address.” the “WAN IP address” and the “LAN User Guide, you’ll see references to and one for the WAN side. In this IP addresses - one for the LAN side, connects two networks, it needs two Since your Router is a device that IP stands for Internet Protocol. stands for Internet on page 48 Blocking LAN . 16 17 they are only e.g., PCs and print servers. These IP addresses are called “dynamic” because A Addresses Dynamic IP have on your running network, a DHCP server you DHCP is enabled default, on your By factory Router. If you already work device, such as the Cable/DSL Router. can either be a designated PC on the networkDHCP servers or another net- IP addresses manually every time a new user is added to your network. new IP address by a PCs and other network devices using dynamic IP addressing are assigned a Servers DHCP (Dynamic Host Configuration Protocol) has expired, the If a PC logs on to the network and its dynamic IP address (or the Internet) period, they expire. ing Your Hardware Toging Up To disable DHCP on your Router, see page 44. you will experience network such as conflicting IP addresses. errors, two on your If youmore than one DHCP server DHCP servers. network, run dynamic IP address static IP address. address for any reason, that PC automatically uses its default to provideIf the dynamic IP addressing fails a dynamic IP still use DHCP’s dynamic IP addressing. that PC can Even if you assign a static IP address to a PC, temporarily DHCP server DHCP server is automatically assigned to a device on the network, assigned to the PC or device. time After a certain will assign it a new dynamic IP address. . DHCP frees you from having to assign

must Instant Broadband Series

disable one of the 2. Routers EtherFast Cable/DSL 2. 1. Before you begin, Connecting Your Hardware Together and Booting Up 2. Router’s USB port. port. Router’s USB Type A end connects to your PC’s while USB port, Type B connects to the cards. Use the enclosed USB cable to connect your PC to the Router: connect to and access yourany Router without even network configuring instantly to any USB-ready desktop or notebook PC. This allows you to The 3-Port Router features one USB plug-and-play that connects port on a PC, hub, switch, port or other network device. work cable from the one of Router’s (labeled LAN ports the Crossover Switch to straight-through mode ( Router using its If your hub or switchavailable, has no more standard ports connect the Crossover Switch to its straight-through ( work cable(labeled to one of the LAN ports modem. including your Router, PCs, hubs, switches, and the cable or DSL to a standard port on your to a standard port network’s hub or switch. Set the end of a network cable into the Router’s If you are connecting the 1-Port Router to a hub or switch ( PC’s network Set the Crossover adapter port. Switch to crossover mode of a network cable into the Router’s If you are connecting the 1-Port Router to just one PC B. Router. Repeat the above step to connect more PCs or network devices to the cabling. a PC, print server, hub, or switch. See page 66 for details on network the Router, on a network and the other end into a standard port device, e.g., .If you have the 3-Port Cable/DSL Router C. .If you have the 4-Port Cable/DSL Router A. X ). If the crossover mode does not light up a A standard port and the Uplink port. It’sand the Uplink port. a straight-through port. LAN make sure that all of your hardware is powered off port to the port is any other than the port WAN port Uplink LAN LAN II port on the hub or switch. port Set port and the other end into port ) mode. 1 , port, and the other end into port, , connect one end of a net- Link , connect one end of a net- 2 II , ) for this set-up. 3 , or LED, see page 10. 4 ) on the back of LAN 1 , plug one end , , plug one 2 , or port’s 3 ) to a , 18 19 6. 4. 3. 5. Router, then plug the power adapter into a power outlet. your modem connection. on your port Router’s rear panel. This is the only that will work port for Press the Reset button Connect the power adapter Connect the network cable oe ntecbeo S modem Power on the cable or DSL pencil. Hold the button in until This will restore the Router’s settings. default factory • • ered on properly. cables are securely plugged in, and that all of your hardware is pow- If all of your Did you remember to check for Technical Checkpoint: The The is complete. off will turn when the self-test through its self-diagnostic test. This LED power adapter is connected properly. Your Router’s hardware installation is now complete! Diag Power power strip with surge protection. It is highly recommended that you plug your Router into a LED will light up red for a few seconds when the Router goes Continue with the next section to configure LED on the front panel will light up green as soon the LED on the front panel will light up green Link LEDs are not lighting up, make sure that all your on the Router’s front panel with a paper clip or your Router and PCs. from your cable or DSL modem to the to the Link Power Diag . LEDs for all your connections? LED lights up and then turns off. lights up and then turns LED

port on the rear panel of port Instant Broadband Series

AN WA Uplinking: Connecting More Devices to Your Router Routers EtherFast Cable/DSL which you can add more PCs and/or network devices. switch. This leaves you with new, on the hub or switch, open ports to Use the Router’s when and so on. you out of ports, next run If your new hub or switch also has an called you can only use only one of these twoare at a time: these ports ports Since the on the newand plug it into an open port hub or switch. To do so, use the Router’s devices to connect, add a hub or switch to your Router. the hub or switch. If you have a PC/device right next to connected to the port If your Router’s See switches. Uplink www.linksys.com hrdports shared Uplink port (on the 3- and 4-Port port Routers), disconnect that PC/device LAN Uplink port shares internal wiring with the port right next to it, wiring with the port shares internal port . ports are all full and you ports still have PCs and/or for complete product lines of 10/100 Mbps hubs and port to connect to a standard port on a hub or to connect a standard port port Uplink port to connect to a standard port on a to connect a standard port port Uplink port, it too can be uplinked port, 20 21 2. Windows will display a message saying that it has detected new hardware. up your 1. Start PC in Windows 98. USB Installation for Windows 98 USB-ready PCs, such as USB hubs. You can also connect your Router’s to other USB devices USB port besides • • • enable your PC’s USB connection to the Router: you to install a USB adapter for that PC. Just follow the directions below to Since your Router acts as a network adapter for your PC, there’s no need for enable the PC that is connected to Router through its USB port. Now that all of your Router’s hardware is connected together, you must Configuring Your Router’s USB Port If you are running Windows Millennium, go to page 29. If you are running Windows 2000, go to page 26. If you are running Windows 98, continue on this page, below. Click see page 65. installed on your PC(s). For on installing instructions TCP/IP, make sure that this configuration, TCP/IP is After you finish Next

Instant Broadband Series 3. Select “Search for the best driver for your device (Recommended).” Routers EtherFast Cable/DSL 4. Select “Floppy disk drives” and click Click driver. Next . Next to start the search for your to start 22 23 5. A new window will appear, saying that Windows is now ready to install 6. Windows to your will begin PC. Do not click copying the files the best driver for this device. Click CD-ROM drive is named D). c:\windows\options\cabs e.g, direct your PC to the location of those files, If Windows asks for your Windows before copying, operating system files press the Esc key during this process. , or Next D:\Win98 to continue.

(assuming that your Instant Broadband Series Cancel

or 8. Windows will ask you if you want your to restart PC. Click Routers EtherFast Cable/DSL 7. Windows will notify you that it has completed copying to the driver files click If it does not ask you, go to new installation will take effect. your PC. Click es Ye . Go to page 33 configure your network Your USB installation is now complete. Finish to work with the Router. . Start , Shut Down , then select Restart Yes so your and 24 25 1. Start up your 1. Start PC in Windows 2000. Windows will show a message Installation for Windows 2000 USB 2. Select “ Wizard will show a message to say installing the that it is ready to start driver files to your driver PC. Click files Hardwarenotifying you that the PC has found new hardware. Windows’ click Next Search for a suitable driver for my device (Recommended)” . Next

. Instant Broadband Series

and 4. Windows will show a message saying that it has found the driver files. 3. When Windows asks you whereselect “Floppy to search for driver files, Routers EtherFast Cable/DSL Click Disk Drives” and click Next . Next . 26 27 5. Windows will copy to your the driverPC. files 4. Windows will ask you if you want to continue with the installation. CD-ROM drive is named D). c:\windows\options\cabs e.g, direct your PC to the location of those files, If Windows asks for your Windows before copying, operating system files Click es Ye . , or D:\Win98

(assuming that your

Instant Broadband Series 7. Go to Routers EtherFast Cable/DSL 6. Windows will display installing the a message saying that it has finished below. Make sure that TCP/IP is installed for this PC. driver files on your driver PC. Click files Start , Your USB installation is now complete. Go to page 33 configure your network Settings , to work with the Router. Control Panel Finish , and . Network to display the screen 28 29 2. Windows will notify you that new hardware has been detected (shown up your 1. Start PC in Windows Millennium. USB Installation for Windows Millennium click above). Select “ Next .

Automatic search for a better drive (Recommended) Instant Broadband Series

” and 3. Windows will notify youon to your that it is ready to install the driver file Routers EtherFast Cable/DSL 4. Windows Click will complete its search for driver files. Click PC. Select “Specify a location” and type in “a:\Win98” in the field. installing the files. installing the files. Next to continue. Next to begin 30 31 6. Windows will ask youyour to restart PC. Click 5. Windows will display installing the a message saying that it has finished driver files on your driver PC. Click files Finish .

es Ye Instant Broadband Series

. teFs al/S Routers EtherFast Cable/DSL 7. When your PC is finished restarting, click on restarting, 7. When your PC is finished Panel , and Your USB installation is now complete. Go to page 33 configure your network Network to work with the Router. . Make sure that TCP/IP is installed for your PC. Start , Settings , Control 32 33 2. 1. Make sure that each of your PCs has the TCP/IP protocol configured. your Router.begin configuring Router is connected to your network, you can Now that your Cable/DSL Router Configuring the Cable/DSL Router Cable/DSL Configuring Your Network with the Otherwise, see page 64 now to do so, before configuring your Otherwise, see page 64 nowRouter. to do so, before configuring Router. Press address of your browser’s IP This number is the default Address field.

Open your web browser

• If you areExplorer, running Internet click Some examples of proxy server software areLanBridge, Internet Wingate, and Sygate. To disable your proxy server software: • If you are running Netscape Navigator: Click Also, you must disable any I p I

M r

ZoneAlarm and Watchdog)ZoneAlarm on all of your PCs. Winpoet or Enternet 300) and any Winpoet or Enternet the checks from all three boxes. Click P A P

O d Enter d

R R

a a s

l l e n

r c

d T

I r

If you have previously enabled any

n n t

r a and type t

r O

x x e

i p

on any of your PCs, you must disable it now.

> and click

s I >> n http://192.168.1.1 t

C r

n n

o e f

g c i

t e - e

o i

w o

t a t

l C s S

o s o to continue.

o n

Instant Broadband Series r

f n

t E

L t L >>

w e a e

r c

a i

N e N

I t

n S i

e >>

o (such as Ivasion

t S

n n e

(such as

e t

t n t i

o n t

e i

e t t t

h h - s

e >> e s

in the

r . Remove

e e a I

n n r

C t t i

n c e

e e g r

n n

e t

l 5. 4. Routers EtherFast Cable/DSL 3. otNm Domain Name Host Name & Configure the followingConfigure values The Cable/DSL Router’s Setup page A username and password prompt Password field empty and type field most cases, leaving blank these twowill still work. fields with Host and Domain names. In has been configured service Internet cation. You to see if your broadband may have to check with your ISP Domain name for the Router. Some ISPs require these names as identifi- box. Click admin OK . , which password, is the default into the These fields allow you These fields to give a Host and : will appear. Leave the User Name will appear. 34 35 9. Click 8. DHCP is already enabled on your By leaving default. Router by factory 7. 6. When you have the Setup window, properly configured click WAN IP Address LAN IP Address eetteDC tab Select the DHCP the server If you already have a DHCP work in the future, don’t forget to change this value. you plan on networking to the Router. If you add more PCs to your net- static IP address. Optional: In the addresses to each of your PCs. the setting on click by your ISP. ak Default Gateway Address Mask, Address address, select If your ISP assigns you a fixed, static IP Address Automatically time they log on. If this is the case with your ISP, select address each Most broadband ISPs assign their clients to a different IP you connect to every time you access yourconnection. Internet ues are as follows: change these values. For LAN side, the Router’s the internal val- default needs, there should be no reason to Unless you internal have specific DHCP Server • • Continue untMs:255.255.255.0 192.168.1.1 Subnet Mask: Private IP Address: Apply can be found on page 41. tions already on any of youron PCs. More information enable PPPoE, remember to remove any existing PPPoE applica- If you need to enable PPPoE choose support, and enter the appropriate values into the , then click Enable . ubro HPUsers Number of DHCP option. If you do so, you must assign your Router a new These values refer to yournetwork internal settings. These values network refer to the external (the Internet) , the Router is configured to automatically assign IP , the Router is configured . Continue and go to step 5. . and on your network, select N (Required) DNS

field, enter the number of PCs Instant Broadband Series IP Address Enable Specify an IP Obtain an IP fields provided fields Apply Disable . If you do , Subnet PPPoE , then

for 3. In the Routers EtherFast Cable/DSL 1. Click the addresses that your Router will provide. PCs to accept the IP Now that your Router is configured, you your will have other to configure Configuring PCs to Connect the Cable/DSL Router 10. 2. Double-click on the Continue on to the next section to complete your network setup. o orcr/dpe,g opg 4t ntl h C/Pprotocol for your card/adapter, go to page 64 install the TCP/IP protocol line listed with your network card/adapter. If there is no TCP/IP o rCbeDLRouter is now on your configured network.Your Cable/DSL ee h oe ntecbeo S modem Reset the power on the cable or DSL the new Router settings will take effect. installed in each PC you plan on configuring before continuing. N o Configuration t e : Windows NT manual. machines. For TCP/IP setup under Windows NT, see your applyThese instructions only to Windows 95 and Windows 98 Start Make sure that a network card or adapter has been successfully button, select Network window, select the Settings icon. , then TCP/IP protocol Control Panel , then restart the PC so , then restart . ieassociated line now . 36 37 4. Click the 5. Click Router. You have now completed the PC’s client settings, so it can connect to the 7. Repeat steps 1-6 for each PC on your network. 6. Windows will ask youthe PC. Click to restart Obtain an IP address automatically your PC to the location of the files, e.g., your PC to the location of files, c:\windows\options\cabs hnalo orPsaecniue,teCbeDLRouter the Cable/DSL When all of your PCs are configured, OK If you want to learn more about the Router’s Web-based Properties . Windows may ask for original Windows Direct installation files. Setup and Configuration is complete. Setup and Configuration tlt,proceed to the next section. Utility, button, then choose the . . Click D:\win98 OK PAddress IP es Ye .

. Instant Broadband Series or D:\win95 tab. Select

, through any PC on the network by typing through this Setup Utility.Router are performed The Utility can be accessed Utility that is programmed into a chipset. All administrative tasks for the Router uses a web browser-based administrative The EtherFast Cable/DSL Easy Router Administration Quick & Utility Router’s Web-based The Cable/DSL Routers EtherFast Cable/DSL Cancel click To apply any settings you’ve changed on a page, click the Utility. can be found by clicking each page’s and each page’s key functions. More detailed explanations and instructions In this section, you’llbrief descriptions of each web page in the Utility find blankLeave and type “ the User Name field page will pop up, shown below. After entering the address value into the web browser, a password request access), shown below. web browser’s Continue . Address . To clear any values you’ve entered on any page, click field (even if that PC does not yet field have Internet Help http://192.168.1.1 button in your Router’s Setup admin ” into the Password field. Apply button, then into the 38 39 seen this screen and properly configured all of the screen’sseen this screen and properly configured values. Utility. If you have already installed and set up your Router, you have already screen you see when you The Basic Setup screen is the first access Setup LAN IP Address and Subnet Mask • Firmware Version • Domain Name • Host Name • 192.168.1.1 for the IP address and 255.255.255.0 Subnet Mask. LAN.the Router as it is seen on internal valueThe default is available for download on the Linksys Web site. you are using. Future versions of the Router’s will be posted and firmware This entry is required byThis entry some ISPs. This entry is required byThis entry some ISPs. This entry showsThis entry the version and date of the firmware

The IP Address and Subnet Mask of

Instant Broadband Series

page in this pic- ture may differ slightly from the one you see. N o t e :

The Setup teFs al/S Routers EtherFast Cable/DSL MACCloning Address • WAN IP Address • • Subnet Mask Go to • Go to • Address) to display your Router's from the external from the external WAN, or the Internet. Router’s MAC address. from having to call your ISP to change the registered MAC address to the your network adapter’s MAC address onto your Router, and prevents you below,Enter those 12 digits into the fields and click Router’s MAC address. The"Physicalprompt, type "ipconfig/all." Address" with 12 digits is your prompt, type "winipcfg." your adapter's MAC tion, find address by doing the following: modem during installation. If your ISPs require MAC address registra- your network card/adapter, which was connected to your cable or DSL security number. Some ISPs require that you register the MAC address of like a social assigned to a unique piece of hardware for identification, automatically,” your ISP will assign these values. address (including your on the Internet ISP). If you select “Obtain an IP If you are running Windows 2000 or Millennium: If you are running Windows 98: Start Start , , Run Run This is the Router’s Subnet Mask, as seen by users external , type in "command," and press , type in "command," and press This is the IP address that your Router has, when seen Click on "MAC Address" (next to WAN IP MAC address , which is a 12-digit code Enter Enter Apply . At the DOS . At the DOS sample into this field. Card/Adapter your Network Address for the MAC Please enter N . This “clones” o t e :

This is a screen. 40 41 Default Gateway Address • PPPoE (Point-to-Point Protocol over Ethernet) • DNS (Domain Name Server) IP Address • • Keep Alive Option Keep Alive • Max Idle Time • Connect on Demand • PPPoE, you must enable it. To enable PPPoE: to see if they use PPPoE. If they do use line, check with your ISP a DSL use PPPoE to establish communications with an end-user. If you are using automatically,” these values will be assigned by your ISP. address IP at least one DNS Server Address. If you select “Obtain an IP your ISP will assign these values. address automatically,”Gateway IP Address. If you select “Obtain an IP the box next to Keep Alive to select it, and click ice thinks that the connection is still active. To use this option, click on alive by sending out a few data packets periodically, so yourserv- Internet connected indefinitely, even when it sits idle. It keeps the connection want to elapse before youraccess disconnects. Internet and click this field want yourconnection to remain on at all times, enter zero ( Internet before the Router drops yourconnection, due to inactivity. Internet If you activate nection as soon youagain. If attempt to access the Internet wish on Demand period of time. If you have been disconnected due to inactivity, your Router to cut your connection with your configure ISP after a certain 1. Click on the 2. Enter the 3. Enter your corresponding 3. Enter your corresponding You can check whether the values you entered for the above Connect on Demand settings are correct by testing youraccess. settings are correct Internet enables your Router to automatically re-establish your con- User Name Enable Max Idle Time Apply This option keeps your PPPoE-enabled access Internet If you aren’t actively you using the Internet, can option in the PPPoE section of the . Otherwise, enter in the number of minutes you you use to log on to yourconnection. Internet Your ISP will provide you with the Default , choose the Password is the number of minutes that passes . Enable Your ISP will provide you with Apply option.

oeDLbsdISPs Some DSL-based Instant Broadband Series . Setup Connect screen. 0

) in browser's location window. to access the Router simply by entering the unit's IP address into their web If you leave the passwordblank, all users on your network field will be able powerfirst up the Router, Password there is no default setting assigned. Routers EtherFast Cable/DSL It is Password strongly recommended that you set a password for the Router. When you will have data. to re-enter all of your configuration troubleshooting measures. Once the Router is reset, you with the Router and havedifficulties exhausted all other unless you defaults are havingDo not restore the factory Apply If you select the Restore Factory option and click Default , you will clear all of the Router’s settings. 42 43 select the Setup tab. providedAll of the information on this screen is read-only. To make changes, selections you’ve entered under the Setup tab. This tab displays status of the Router; it reflects data and the current Status LAN • PPPoE (Point-to-Point Protocol over Ethernet) • Firmware Version • Host Name • Router, as seen by users on yournetwork. internal whether you have enabled the use of Router’s PPPoE support. Versionfirmware. dates are slightly more accurate than version numbers. essary for some ISPs. essary These fields display IP the current These fields Address and Subnet Mask of the This field shows the name of your This field Router. is nec- This entry This field shows the installed version and date of the This field

This field shows This field

Instant Broadband Series DHCP server. have one, it is highly recommended that you leave your Router enabled as a assigns IP addresses to each PC on your network for you. Unless you already automatically Protocol) server A DHCP (Dynamic Host Configuration DHCP Routers EtherFast Cable/DSL • Starting IP • Starting Address DHCP Server • •WAN option to already have on your a DHCP server network, set the Router's DHCP because the default IP address for yourbecause the default Router is when issuing IP addresses. This value must be (192.168.1.) 2 or greater, assign a static IP address to your Router. settings are common. In most cases, the first availablesettings are common. In most cases, the first is used. DNS entry used byAddress(es) of the DNS currently the Router. Multiple DNS IP DNS (Domain Name System) IP Address on the Internet. WAN Gateway Default IP address of the Router, as seen by users external function, which is either enabled or disabled. DHCP Server These fields display the These fields WAN IP Address, WAN Subnet Mask and Disable DHCP is already enabled If you default. by factory This field shows the status of Router's DHCP server This field and click Enter a valuewith to start for the DHCP server Apply . If you disable DHCP, remember to These fields show the IP These fields 192.168.1.1 . 44 45 Filtering). (IP upgrades See page 48 for directions on enabling remote firmware Router does not enhance the speed or quality of your connection speed. feature that you want to use. “Flashing,” onto your or loading new firmware need to download a newer version, unless that version has a new firmware loaded for free. If youralready, Router can access the Internet there’s no versions are posted on www.linksys.com,New firmware and can be down- the Router’sdocumentation, including the application that upgrades firmware. Under the Help tab, you’lllinks to all of Utility’s find support internal Help DHCP Clients Table • • Number of DHCP Users changes periodically). and memory rent DHCP Client data. (This data is stored in temporary than 253. cannot be greater that you want to assign IP addresses to. the DHCP server This number Click on the (Optional) Enter the maximum number of PCs Clients Table

button to show the cur-

Instant Broadband Series . Enter your Router’s administration password into the 3. 2. Click on Routers EtherFast Cable/DSL 5. Double-click the 4. Click the 1. Select the To the Router’s upgrade firmware: the instructions there. the instructions loaded from the Linksys Web site. field. Upgrade Firmware Browse Help tab (shown on the previous page). Upgrade file button to find the firmware upgrade file that you down- file upgrade the firmware button to find to display a new window (shown below): . Click on the Upgrade Password Confirm button and follow 46 47 • • Setting Up Filters addresses or network numbers (or a range of ports). port VPN (Virtual Private Network) sessions. You by using IP can set up filters and enable users from accessing the Internet internal IP Filters block specific IP Filtering To users by network number, filter port enter a network number or a port To using IP addresses, enter the range of addresses you set up a filter to access any number listed there. port Users connected to the Router will no longer be able numbers fields. port into the range of networknumbers you Enter the port want ports. to filter Click 192.168.1.5, enter For the PC with IP address of instance, if youboth fields. wish to filter one IP address instead of a range addresses, enter the same value into es will not be ableat all. If you to access the Internet only want to filter Users who IP address- have into the IP address fields. filtered wish to filter Apply N o when you’re done. t e : Only 5

into both fields on one line: 192.168.1. into both fields one

VPN session may be conducted at a time. Instant Broadband Series 5 ~ 192.168.1. 5

. • Requests Blocking WAN Routers EtherFast Cable/DSL • • Using IPSec Pass Through • • Using PPTP Pass Through • on • a remote location. To enableclick on Remote Upgrade, • Using Remote Upgrade • • Using Remote Management from being “ Enable this feature, click on from a remote location, via the Internet. To enable To disable IPSec Pass Through, click on This feature lets you use IPSec Pass Through. To use this feature, click on This feature allows you to manage your Router By enabling the Click the To disable this feature, click on work Both functions of the ports. Request difficult for outside users to workdifficult their way into your network. Enable (Virtual Private Networking) sessions. To enable this feature, click on then click To disable this feature, click on To disable Remote Management, click on Point-to-Point Tunneling Protocol is the method used to enable VPN This feature allows you to “flash,” your or upgrade, Router’s from firmware Apply next to “IPSec Pass Through,” then click on . next to PPTP Pass Through, and then click feature also reinforces your network security by hiding your net- Apply Apply pinged lc A Request Block WAN button to save your changes. . ,” or detected, by users. other Internet The Enable, then click on Disable Disable lc A Request Block WAN feature, you can prevent your network , then click on Disable next to PPTP Pass Through, and Disable Apply and then click on . , then click on Apply Apply and Remote Management before feature make it more Apply Enable must be activated remote location. Remote Upgrades . . you leave to a . Block WAN , then click Apply Apply . . 48 49 2. Configure as many up to 10 ranges entries as needed- the Router supports Configure 2. used by number or range of ports the server. Enter the port On the same 1. If you need to forward for one PC, use DMZ Hosting. all ports tab and the Router must be assigned a new static LAN IP address. Forwarding, the Router's DHCP function must be disabled under the DHCP Router will forward those requests to the appropriate PC. Before using When users send this type of request to your network the via the Internet, or email servers. servers, Forwarding sets up publicon your services network, such as web ftp servers, IP Forwarding To using Forwarding: add a server of ports. Click of ports. user(s) to access. that youline, enter the LAN IP address of server want the Internet Apply

when you’re done.

Instant Broadband Series 4. Click the Routers EtherFast Cable/DSL 3. Select the 2. Select the working Select the correct mode. 1. To set up dynamic routing: to other routers on the network.broadcasts routing information paths. the destination, based upon shortest The RIP protocol regularly route for the network’sefficient data packets to travel between the source and protocol, calculates the most the network's layout. The Router, using the RIP With Dynamic Routing, you can automatically adjust to physical changes in Dynamic Routing should be selected if the Router exists on a network with other routers. Router is hosting your network's connection to the Internet. Apply protocol protocol button to save your changes. by which the Router receives network data. by which you transmit data on the network. Gateway Mode should be used if your Router Mode 50 51 1 To create a static route entry: static routing configuration. host or network. Click the pathwaydetermined that network data packets must travel to reach a specific have to set up a static route between the two networks. A static route is a pre- If your Cable/DSL Router is connected to more than one network, you may Static Routing . Select Router supports up to 20 static route entries. Router supports Static Route Entry Show Routing Table from the drop-down list. The Cable/DSL

button to view the current

Instant Broadband Series 3 Routers EtherFast Cable/DSL 2 . Click Enter the following data to create a static route: . the Internet, select the Internet, WAN. network, select LAN. If you’re connecting to another network through LAN or the WAN, If you’re Internet. or the external connecting to a sub- Interface on the network, such as switches, PCs, etc. es through before reaching its destination. A node is any device Hop Count or host. device that allows for contact between the Router and remote network Gateway Default while host. the last digit (from 1 to 254) would identify the specific network, address identify this particular three numbers of an network IP 255.255.255.0. (byThis determines using the values 255) that the first In the example above, is the host portion. portion the Network Mask is address is the network and which portion mines whichof an IP portion Subnet Mask than to just the Router. 192.168.1.0 if you wanted to route the Router’s entire network, rather address place on the network. Therefore, you would enter the IP the Router’sis 192.168.1, with the last digit (1, in this case) determining this address, the address of network to which the Router is connected address is 192.168.1.1. Based on For example, the Router’s standard IP address is set to zero ( network of the IP portion here. If you are establishing a route to an entire network, be sure that the address of the host for which you wish to create a static route Enter the IP the remote network or host to which you want to assign a static route. Destination LAN IP Apply Interface tells youInterface whether your network is on the internal to save your changes. This value gives the number of The Subnet Mask (also called the Network Mask) deter- hsI drs utb h Paddress of the gateway address must be the IP This IP h etnto A Paddress is the Address of The Destination LAN IP nodes 0 ). that a data packet pass- 52 53 • • DMZ hosting forwards for one PC simultaneously. all the ports Whereas IP Forwarding can only forward a maximum of 10 ranges ports, encing. gaming and video-confer- such as Internet service to use a special-purpose The DMZ Hosting feature allows one local user to be exposed to the Internet DMZ Hosting To expose one PC, enter the computer’s IP address and click Deactivate DMZ by entering a zero ( 0

) in the field and clicking ) in the field Instant Broadband Series Apply Apply .

. • This data can also be accessed by is shared out. other network users if the file log traffic. of all incoming Internet users on your network have accessed, and Routers EtherFast Cable/DSL Outgoing Access Log Outgoing Access or IP addresses for yourconnection. Internet The Log feature provides you with a log of all incoming and outgoing URLs Logging • • • To activate logging, click on To disable Logging, click on Enter in the IP address of PC that you want to send the log to. Make Click on sure that this PC is using a static IP address. Click done. Outgoing Access Log Outgoing Access lists all the URLS or IP addresses of Internet sites that lists all the URLS or IP addresses of Internet Enable Disable or Incoming Access Log Incoming Access next to “Access Log.” in the Log window, then click Incoming Access Log Incoming Access Apply to view each log. when you’re gives you a Apply . 54 55 .The Diag LED stays lit when it should not be lit. 2. .I can’t browse through the Cable/DSL Router. 3. .I can’t connect to the Cable/DSL Router. 1. www.linksys.com. problems. If you an answer can’t here, check the Linksys website find at and operation of the Cable/DSL Router. Read below description to solve your This section provides possible solutions to problems regarding the installation Common Problems and Solutions Troubleshooting • • • The • Also, the Subnet Mask must be set to 255.255.255.0 match • Make sure that your PC is using an IP address between 192.168.1.2 to • Make sure that your PC and the Router are on same network seg- • Check to see that the Cable/DSL Router is properly installed, the LAN from 2 to 254.) Subnet Mask is 255.255.255.0, the default gatewayfrom 2 to 254.) Subnet Mask is 255.255.255.0, the default IP client side. Run " ing properly. connected. Check if the status LEDs on front panel are functioning again. If that doesn’t help, contact yourinspection. dealer for further address to the computer, the firmware then upgrade ing a static IP device is not working properly. by assign- Try to re-flash the firmware If the LED remains lit after this time, the system is working fine. off the checking procedure, LED turns tion. to show After finishing Meantime, the system will boot up itself and check for proper opera- If using Windows 95 or Windows 98, check the TCP/IP setup on the Check if both ends of the network cable and power adapter are properly check the Router by going to Cable/DSL Router’s Subnet Mask. You can check these settings for the IP address of 192.168.1.1. 192.168.1.254 and thus compatible with the Cable/DSL Router default the IP address automatically. ment. If you are not sure, initiate the DHCP function and let PC get connections are OK (Link LEDs should be on), and it is powered ON. Run Diag . The PC should have an IP address of 192.168.1.xxx ("xxx" is LED lights up when the Router is first poweredLED lights up when the Router is first up. Properties winipcfg Start for the TCP/IP protocol. , Settings " by clicking on the , Control Panel

Start Instant Broadband Series , and button, then select- Network

: .Ican’t access my email or the Internet. I 6. modem. address from my cable or DSL I can’t obtain an IP 5. Routers EtherFast Cable/DSL .We ne R rI drs,Igta“eus ie u”error. I get a “Request timed out” When I enter a URL or IP address, 4. • You before connecting the Router to your must obtain this information simple, such as • If yourhome page address is something very Internet • Some ISPs,especially cable their networks providers, so that configure • may require MAC YourAddresses. Check with your ISP. ISP This • You may have to enter the Host or Domain name in Setup page of modem is DHCP-capable. • Make sure that your cable or DSL modem for a few seconds. • PowerTurn it back down your cable or DSL • Make sure that all of your cabling is properly connected and that all of • If the Cable/DSL Router is configured correctly,• If the Cable/DSL Router is configured check your Internet but still not working, correctly check the • If the PCs are configured • Check to see if other PCs give message. If they you do, the same error • Same as above, check the same setup values in the Status Monitor page address. this data yourself how by “pinging” your to find Router for an IP network. To to learn do so, you can ask your ISP, to page 61 or turn connections. addresses of your you the actual Internet determine Web and e-mail Router until you won’t your be able Cable/DSL to properly configure is something like “e-mail” or “pop3”, instead of “pop.mail.linksys.com,” “www”, instead of “www.linksys.com”, or your e-mail server’s address e-mail application to reach your home page or receive your e-mail. you don’t have address into your to enter a full Internet web browser or of the Cable/DSL Router. hudb h otrsI Address, and DNS (in "More".) should be the Router’s IP Utility. address can be obtained in the Status screen of Router’s Web-based the Router’s web-based utility. Go to page 33 for more information. address. have an IP on. After the modem goes through its self-test, check to see if you now the Router’s connection. (DSL/cable modem, etc.) to see that it is working correctly. it, check the LAN and power connections. Connect to the Router and check its settings. If you cannot connect to Cable/DSL Router. Make sure that it is connected and powered on. GatewaySubnet Mask, Default data. and DNS Server IP address, IP settings are correct: make sure that your workstations’ AN WA and LAN LEDs are lighting up. 56 57 osteCbeDLRouter support any operating system other than Windows Does the Cable/DSL What is Network Address Translation (NAT) and what is it used for? Router support 100Mbps Ethernet? connection of the Cable/DSL Does the WAN Router support IPX or AppleTalk? Does the Cable/DSL hr steCbeDLRouter installed on the network? Where is the Cable/DSL built-in feature that the Router automatically enables. Is IPSec Pass-Thru supported by the EtherFast Cable/DSL Router? a maximum of 253 IP addresses. ports Router support? How many IP addresses can the Cable/DSL Frequently Asked Questions non-Windows operating systems at this time. or troubleshooting of anyprovide for setup, configuration technical support or Windows NT? Windows 2000, Windows 98, 95, ed by the ISP. The user may have 253 private addresses behind this single address provid- or cable modems, where only one TCP/IP address is provided by the ISP. Router to be used with low-cost accounts, such as DSL Internet Cable/DSL LAN is never transmitted overNAT Furthermore, the Internet. allows the of network security since the addresses of PCs connected to private LAN to one public address that is sent out to the Internet. This adds a level Address Translation (NAT) translates multiple IP addresses on the private Router. (for the 3 and 4-Port Routers only) built-in auto-sensing Fast 10/100 Switch on the LAN side of Ethernet on its 10Mbps Ethernet WAN 100Mbps through the It does support port. Router’s hardware design only current supports 10Mbps, the Cable/DSL connections like cableSince broadband Internet and DSL do not exceed LAN connections, but those protocols cannot connect from WAN to LAN. protocol used on Apple and Macintosh networks, can be used from LAN to route messages from one node to another, and AppleTalk, a communications communications. IPX, a NetWare communications protocol used only to and has become the global standard for protocol standard for the Internet Router into the cableport. or DSL modem's Ethernet Plug the Cable/DSL ment, the Router is installed between the Cable/DSL Modem and the LAN. Yes, but Linksys does not

No. TCP/IP is the only Instant Broadband Series In a typical environ- The Router sup- Yes, it is a

Network yWbpgshn dsotd,Igtcrutddwlas or nothing but junk I get corrupted downloads, My Web pages hang (distorted), How can I block corrupted FTP downloads? How do I get and play simultane- Can multiple gamers on the LAN log to one game server but others on the network cannot join. I set up an Unreal Tournament server, How do I get Napster to work with the Router? Does the Cable/DSL Router support ICQ send files? Routers EtherFast Cable/DSL

characters are being displayed on the screen. What do I do? program. when youwith yourusing another FTP downloadFTP client, try files a file minutes with an "illegible message. server” There remains, however, a problem with people being booted after a few to be in the DMZ. Just forwardPC. 27015 to the local IP of server port lem with Version 1.0.1.3). For does not need hosting games, the HL server key connect at the same time, even if they’re on the same LAN (not a prob- One exception: 8, and on up. This lets multiple PCs connect to the same server. command line; the x would 2700x" to the HL shortcut "+clientport be 6, 7, for Half-Life is 27005. client port The PCs on your LAN must have address. ple, Unreal Tournament multi-login does support with just one public IP you’re playing, and/or what you kind of game server are using. For exam- ously with just one public IP address? to the IP assigned Router from yourServerName ISP. set the ListenPortabove) to 8080 (to match the mapped port file, and usually works well), then in the [UWeb.WebServer] section of the server.ini server. If you want to use the UT Server Admin, forward (8080 another port 7777, 7778, 7779, 7780, 7781, and 27900 to the IP address of ports must create a static IP address for each of the network’s PCs and forward What do I do? with the Router and requires no special settings. to a user behind the Router. user can then send a file The Internet or proxy," setting. time-out to 80 seconds in the firewall and set the firewall ICQ menu-> preference -> connections tab-> check "I am behind a firewall afLf:Team Fortress Half-Life: If youa dedicated Unreal are running Tournament server, you Version 1.0.1.6 won't let multiple PCs with the same CD to Work with the Router? It depends on which network game If you are experiencing corrupted Napster is fully compatible Yes, with the following fix: The default Force your NIC 58 59 What is DMZ Hosting? I cannot get the web configuration screen for the Router. What can I do? Does the Router do stateful packet inspection? What type of firewall does the Router have? Does the Router function in a Macintosh environment? Does the Cable/DSL Router support IPsec? How will I be notified of new Router firmware upgrades? what can I do? If all else fails in the installation, TCP/IP ports to be open. It is recommended that you TCP/IP ports set your computer Some applications require multiple computer) to be exposed to the Internet. up settings on your browser. Check your browser documentation. browser, e.g., Netscape Navigator Explorer. or Internet Or, remove the dial- may have forgotten to remove the proxy settings on your server Internet (Network Address Translation) and inspections. TCP/IP port Navigator v4.0 or higher for Macintosh PCs. setup pages are accessible only Explorer v4.0 or Netscape through Internet loaded at www.linksys.com. is now available versions 1.30 and later, in firmware which can be down- connection, and may connection stability. yourInternet disrupt current will not enhance the quality or speed of your version of Router firmware tains new features that you would like to use. Downloading a more current is no need to download a newer version, unless that version con- firmware TFTP programs. If your Router’s connection is working Internet well, there they can downloaded with can be upgraded for free. The Router's firmware are posted on the Linksys websiteupgrades at www.linksys.com, where www.linksys.com. release available(upload) the latest firmware on the Linksys website, DSL modem by powering the unit off and then on. Obtain flash down the www.linksys.com for more information. Ethernet Adapter's Advanced tab). Check our web Properties site at it temporarily. (To do this, go to the Network offto 10Mbps or half duplex mode, and turn the "Autonegotiate" feature on Reset button for at least three seconds and reset your cable or Demilitarized Zone (DMZ) allows one IP address (or A new IPsec Pass Through features The Cable/DSL Router uses NAT No. Reset the Router by holding Control Panel

Yes, but the Router's Instant Broadband Series All Linksys firmware , in your

ou Yo How do I get mIRC to work with the Router? How can I check whether I have static or DHCP IP Addresses? Routers EtherFast Cable/DSL Does the Router pass PPTP packets or actively route PPTP sessions? Does Linksys provided syslog support? buffer on the Router? How big is the memory What is the maximum number of VPN sessions allowed by the Router? What are the advanced features of the Router? Which modems are compatible with the Router? Does the Router replace a modem? Is there a cable or DSL modem in the How many ports can be simultaneously forwarded? compatible? Is the Router cross-platform What is the maximum number of users supported by the Router? does the exposed user/PC share the public IP address If DMZ Hosting is used, forwarding to 113 for the PC on which you are using mIRC. to obtain this information. syslog support. One VPN session at a time. hosting, and Logging. include IP Filtering, IP Forwarding, Dynamic Routing, Static DMZ with virtually any cableEthernet. or DSL modem that supports cable or DSL modem. Router? ranges of ports. can establish 520 sessions at the same time, but you can only forward 10 and TCP/IP is compatible with the Router. up to 253 users. supports Router allows PPTP packets to pass through. with the Router? with a static IP address if you want to use DMZ Hosting. No, this version of the Router must work in conjunction with a No. No, Linksys does not currently provideNo, Linksys does not currently Any platform that supports Ethernet Any that supports platform Under the Fowarding tab, set port 512KB. The Router's advanced features This Router is compatible Theoretically, the Router Consult your ISP The Router The 60 61 them. addresses of your ISP’sYou by servers “ these IP and web can find web the true addresses behind your ISP’sThe solution is to find code words. by your ISP to accept their abbreviatednot been configured addresses. server ing email and accessing the Internet. This happens because your Router has addresses, your Router may have problems sending or receiv- addresses or IP words (“www”, “e-mail”, “home”, “pop3”, etc.) instead of complete Internet If your ISP’s e-mail and Web with single addresses are configured server web browser or e-mail configurations. words or codes on their customers’ addresses to single their server ISPs will shorten Because of this, certain However, IP and web addresses are sometimes long and hard to remember. web browser and you will bring up the Linksys home page every time. For example, www.linksys.com is actually 206.135.116.3. Type it into your addresses on the Internet. actually assigned to www.linksys.com with words and characters, i.e., addresses are configured Almost all Internet How to Ping Your ISP’s E-mail & Web Addresses Appendix prior you addresses,If you do not have your ISP’s web and e-mail IP must , ocnetn orCbeDLRouter to your network. to connecting your Cable/DSL www.yahoo.com Paddresses IP either get them from your ISP or follow these steps , numerical values which are the true

, etc. However, addresses are these Internet Instant Broadband Series pinging

” 3. 2. 1. Address. ping its IP your step to determining ISP’sThe first web address is to and e-mail server Address To Ping an IP Step One: Routers EtherFast Cable/DSL 4. Approximate round trip times in milli-seconds: Ping statistics for 24.53.32.4: Reply from 24.53.32.4: bytes=32 time<10ms TTL=128 Reply from 24.53.32.4: bytes=32 time<10ms TTL=128 Reply from 24.53.32.4: bytes=32 time<10ms TTL=128 Reply from 24.53.32.4: bytes=32 time<10ms TTL=128 Pinging mail [24.53.32.4] with 32 bytes of data: C:\>ping mail “mail”). Press as address is configured location for which you’re an IP to find trying At the DOS command prompt dow. Start Click set bywork your ISP if you configuration have since changed it. Power on the PC and cable or DSL modem the server “mail”, or anythe server other word or value you have pinged. address of address is the actual IP 24.53.32.4.) This IP example above: Write down the IP address returned by the ping command loss), a ping of Microsoft Network’s email server, will be displayed. Minimum = 0ms, Maximum Average 0ms Packets: Sent = 4, Received Lost 0 (0% , then Enter Run, . Information such as the following. Information data, taken from and type "command" to bring up the DOS win- , type "ping mail" (assuming that the , and restore the net- . (In the 62 63 Internet application. Internet your Router should have no problemthrough that accessing the Internet Once you have address, server address with the true replaced the brief server 3. 2. Approximate round trip times in milli-seconds: Ping statistics for 24.53.32.4: Reply from 24.53.32.4: bytes=32 time<10ms TTL=127 Reply from 24.53.32.4: bytes=32 time<10ms TTL=127 Reply from 24.53.32.4: bytes=32 time<10ms TTL=127 Reply from 24.53.32.4: bytes=32 time<10ms TTL=127 Pinging mail.msnv3.occa.home.com [24.53.32.4] with C:\>ping -a 24.53.32.4 1. address you just pinged. the IP addresses. Follow the web below address assigned to the instructions to find yourproblems system with web by addresses rather than IP configuring addresses, however, usually don’t. Because of this, you’re likely to have less addresses change all the time. Web address, it may IP not be permanent. above address returned would work as your e-mail server While the IP Step Two: Pinging for a Web Address application, etc.). application (web Internet browser,address in the corresponding e-mail Replace your ISP’s abbreviated server address could change, it is likely that this web address will not. of “mail” address address you just pinged. While the IP address assigned to the IP This web address is the web mail.msnv3.occa.home.com.) example above: Write down the web address returned by the ping command loss), 32 bytes of data: lowing data will be displayed. address yousuch as the fol- just pinged. Information 24.53.32.4 is the IP command prompt At the DOS Minimum = 0ms, Maximum Average 0ms Packets: Sent = 4, Received Lost 0 (0% , type “ping -a 24.53.32.4”, where

with this extended web Instant Broadband Series

. (In the 3. Click the Routers EtherFast Cable/DSL 2. Double-click on the 5. Highlight 4. Double-click on 1. Click the Windows NT, see your Windows NT manual. are for instructions Windows 95 and Windows 98. For TCP/IP setup under only protocol on one of your PCs Follow to install the these instructions TCP/IP Installing the TCP/IP Protocol Select the after a network card has been successfully installed inside the PC. These Add Start Microsoft Configuration button button. Choose Protocol under the list of manufacturers. Network . . tab. icon to bring up your Network window. Settings , then Control Panel . 64 65 9. Windows will ask youthe PC. Click to restart 8. Click 7. After a few seconds, the main Network window will appear. The TCP/IP 6. Find and double-click Supply them as needed, e.g., D:\win98, D:\win95, c:\windows\options\cabs. Protocol should now be listed. OK . Windows may ask for original Windows installation files. h C/PInstallation is now complete. The TCP/IP TCP/IP in the list to right (below) es Ye

. Instant Broadband Series

. the copper side, wire 1 will be on the far left. the copper side, wire 1 will be on far will now be parallel to the floor). When looking down on clip down up (the springy clip so that the copper side faces away is facing into a wall jack first) from you. Face the that goes so that the end of plastic RJ-45 tip (the part To which determine wire is number 1, hold the cable crossover cabling. cable instead). which allows you to link or connect hubs together with a straight-through an exception: some hubs have that is crossed internally, a built-in uplink port hub. Crossover cables are used for connecting a hub to another (there is second choice. Straight-through cables are used for connecting computers to a 5 is the most reliable and most highly 3 is a good recommended. Category There are different or “categories,” grades, of twisted-pair cabling. Category Twisted-Pair Cabling Routers EtherFast Cable/DSL becomes 6. See the diagrams on the becomes 6. See the diagrams other: wire 1 becomes 3, and 2 wires change from one end to the a crossover cable, the order of wires 1, 2, 3, and 6 at the other end. In and 6 at one end of the cable are also straight-through cable, wires 1, 2, 3, the other. All 8 wires are used. In a from one end of the cable that run to are 8 thin, color-coded wires inside crossover. 5 cable Inside a Category crimped as either straight-through or 5 cablesCategory can be purchased or cables, or cut and crimp your own. You 5 can buy pre-made Category straight-through and on detailed information next page for more 66 67 • • Crimping Your Own Network Cables

Straight-Through Cabling Cross-Over Cabling

Instant Broadband Series 4-Port Router Specifications 4-Port Routers EtherFast Cable/DSL trg uiiy5% to 90%, Non-condensing 10% to 85%, Non-condensing FCC Class B, CE Mark Commercial Storage Humidity -20°C to 70°C (-4°F 158°F) 9V External, AC, 1 Amp Operating Humidity 13.4 oz. (0.42 Kg) 0°C to 40°C (32°F 104°F) 186mm x 154mm 48mm (7.31” 6.16” 1.88”) Storage Temperature Operating Temperature Certifications Power Input Unit Weight Dimensions Environmental Specifications Star Power, (LAN) 10/100Mbps, (WAN) 10Mbps, 3 or better (10BaseT) UTP Category LED Indicators Topology Cabling Type Speed ot (LAN) Four 10/100 RJ-45 switched ports CSMA/CD IEEE 802.3 (10BaseT), 802.3u (100BaseTX) BEFSR41 Ports Protocol Standards Model Number (WAN) Link, Act, Diag (LAN) Link/Act, Full/Coll, 100 5 or better (100BaseTX) UTP Category (WAN) RJ-45 port One 10Base-T Ethernet for the cable or DSL modem 68 69 trg uiiy5% to 90%, Non-condensing 10% to 85%, Non-condensing FCC Class B, CE Mark Commercial Storage Humidity -20°C to 70°C (-4°F 158°F) 7.5V DC, 7Amps External, Operating Humidity 12.6 oz. (0.35kg) 0°C to 40°C (32°F 104°F) 186mm x 154mm 48mm (7.31” 6.16” 1.88”) Storage Temperature Operating Temperature Certifications Power Input Unit Weight Dimensions Environmental Specifications Star Power, 3 or better (10BaseT) UTP Category 10Mbps (10BaseT Ethernet) (WAN) LED Indicators (LAN) One 10BaseT/100BaseTX RJ-45 port Topology CSMA/CD Cabling Type IEEE 802.3 (10BaseT), 802.3u (100BaseTX) Speed BEFSR11 Ports Protocol Standards Model Number Router Specifications 1-Port (LAN) 10Mbps (10BaseT Ethernet) or 10Mbps (10BaseT Ethernet) (LAN) (WAN) One10BaseT Broadband Uplink port (WAN) Link, Act, Diag (LAN) Link/Act, Full/Coll, 100 5 or better (100BaseTX) UTP Category

100Mbps (100BaseTX Fast Ethernet)

Instant Broadband Series 3-Port Router Specifications 3-Port Routers EtherFast Cable/DSL trg uiiy5% to 90%, Non-condensing 10% to 85%, Non-condensing FCC Class B, CE Mark Commercial Storage Humidity -20°C to 70°C (-4°F 158°F) 9V External, AC, 1 Amp Operating Humidity 13.4 oz. (0.42 Kg) 0°C to 40°C (32°F 104°F) 186mm x 154mm 48mm (7.31” 6.16” 1.88”) Storage Temperature Operating Temperature Certifications Power Input Unit Weight Dimensions Environmental Specifications Star Power (LAN)10/100Mbps 3 or better (10BaseT) UTP Category LED Indicators Topology Cabling Type Speed ot (LAN) Three 10/100 RJ-45 Switched ports CSMA/CD IEEE 802.3 (10BaseT), 802.3u Ports BEFSRU31 Protocol Standards Model Number (USB) USB (WAN) Link, Act, Diag (LAN) Link/Act, Full/Coll, 100 5 or better (100BaseTX) UTP Category (WAN) 10Mbps (WAN) RJ-45 port One 10Base-T Ethernet (100BaseTX) for the cable or DSL modem 70 71 FTP site Web site Email Fax Customer Support Information addresses below.phone numbers or Internet Router, at one of the contact Linksys Customer Support EtherFast Cable/DSL For help with the installation or operation of your Instant Broadband Customer Support

fttp://ftp.linksys.com http://www.linksys.com [email protected] 949-261-8868 949-261-1288 800-326-7114 800-546-5797 (1-800-LINKSYS)