Linksys BEFSR41 User Manual
Cable/dslrouters instant broadband series
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Table of Contents
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Summary of Contents for Linksys BEFSR41
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Page 1: User Guide
Instant Broadband™ Series Cable/DSL Routers Use this guide to install the following products: BEFSR41 ver. 2 EtherFast Cable/DSL Router with 10/100 4-Port Switch BEFSRU31 EtherFast Cable/DSL Router with USB Port and 10/100 3-Port Switch BEFSR11 ver. 2 EtherFast 1-Port Cable/DSL Router... - Page 2 Linksys reserves the right to revise or update its prod- ucts, software, or documentation without obligation to notify any individual or entity.
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Page 3: Table Of Contents
The Linksys EtherFast Cable/DSL Router Cable/DSL Router Features Configuring PCs to Connect to the Cable/DSL Router Package Contents for the 4-Port Router (BEFSR41) Configuring the Cable/DSL Router Minimum Requirements Package Contents for the 1-Port Router (BEFSR11) Chapter 8: The Cable/DSL Router’s... -
Page 4: Chapter 1: Introduction
• Connects to a Cable/DSL Modem and to a 10/100 Network • Supports Universal Plug and Play (UPnP) • Equipped With a 3 or 4-Port 10/100 Switch (BEFSRU31 & BEFSR41 ver. 2 only) • Connects Up to 253 PCs to the Internet with Just One WAN IP Address •... -
Page 5: Package Contents For The 4-Port Router (Befsr41)
® ™ EtherFast Cable/DSL Routers Package Contents for the 1-Port Router (BEFSR11) Package Contents for the 4-Port Router (BEFSR41) Package Contents for the 1-Port Router (BEFSR11) Figure 1-1 Figure 1-2 • One EtherFast Cable/DSL Router with 10/100 4-Port Switch • One Power Adapter •... -
Page 6: Package Contents For The 3-Port Router (Befsru31)
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Chapter 2: Getting to Know the Package Contents for the 3-Port Router (BEFSRU31) ® 4-Port EtherFast Cable/DSL Router The 4-Port Router’s Rear Panel Your Router’s ports, where network cables are connected, are located on the rear panel of your Router. -
Page 7: The 4-Port Router's Front Panel Leds
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers The WAN Indicators The 4-Port Router’s Front Panel LEDs Link Green. The Link LED lights up when a successful connec- tion is made between the Router and your broadband device or network. Green. -
Page 8: Chapter 3: Getting To Know The 1-Port Etherfast Cable/Dsl Router
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Buttons & Switches Chapter 3: Getting to Know the The Reset Button Details on the Reset button are found in the 1-Port EtherFast Cable/DSL “Getting to Know the 4-Port EtherFast Cable/DSL Router” section. Router The Crossover Switch When “uplinking,”... -
Page 9: Chapter 4: Getting To Know The 3-Port
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Link/Act Green. The Link/Act LED serves two purposes. If the LED Chapter 4: Getting to Know the is continuously lit, the Router is successfully connected to a device through the LAN port. If the LED is flickering, the 3-Port EtherFast Cable/DSL Router is actively sending or receiving data through the LAN port. -
Page 10: The 3-Port Router's Front Panel Leds
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Buttons Important: USB ports do not work on PCs running Windows 95 or Windows NT. The Reset Button Details on the Reset button are found in the “Getting to Know the 4-Port EtherFast Cable/DSL Router”... -
Page 11: Chapter 5: Connecting The Cable/Dsl Router To Your Network
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers The USB LED lights up when the USB port is successfully Chapter 5: Connecting the connected to a USB-ready PC or USB hub. Cable/DSL Router to Your Network The WAN Indicators Overview Link Green. -
Page 12: Ip Addresses: A Quick Lesson
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Your Router’s firewall (NAT) protects your network of PCs so users on the pub- If you use your Router to share your cable or DSL Internet connection, contact lic, Internet side cannot “see” your PCs. This is how your internal LAN, or your ISP to find out if they have assigned a static IP address to your account. -
Page 13: Connecting Your Hardware Together & Booting Up
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 3. Connect the network cable from your cable or DSL modem to the WAN Connecting Your Hardware Together and Booting Up port on your Router’s rear panel. This is the only port that will work for your 1. -
Page 14: Uplinking: Connecting More Devices To Your Router
PCs and/or network devices. You can also connect your Router’s USB port to other USB devices besides See your nearest Linksys retailer or visit www.linksys.com for complete prod- USB-ready PCs, such as a USB hub using a USB cable. - Page 15 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 3. Select Search for the best driver for your device (Recommended). Click 5. The Hardware Wizard will search the floppy, and a new window will appear, the Next button. notifying you that Windows is now ready to install the best driver for this device.
- Page 16 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 7. Windows will notify you that it has completed copying the driver files to 9. When your PC is finished restarting, click the Start button, and select your PC. Click the Finish button to complete the USB driver installation. Settings, Control Panel, and Network.
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Page 17: Installing The Windows 2000 Driver
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 3. Insert the driver disk into the floppy drive, and when Windows asks you Installing the Windows 2000 Driver where to search for driver files, select Floppy disk drives only. Click the Next button. - Page 18 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 5. When the Digital Signature Not Found screen appears, Windows will ask 7. Windows will display a message notifying you that it has finished installing you if you want to continue with the installation. Click the Yes button. the driver files on your PC.
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Page 19: Installing The Windows Millennium Driver
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 4. Windows will ask you to restart your PC. Click the Yes button. Installing the Windows Millennium Driver 1. With the router connected to your PC’s USB port, start up your PC in Windows Millennium, and insert your driver disk. -
Page 20: Installing The Windows Xp Driver
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 4. When the Hardware Installation screen appears, click Continue Anyway. Installing the Windows XP Driver 1. With the router connected to your PC’s USB port using a USB cable, start up your PC in Windows XP, and insert your driver disk. Figure 6-22 2. -
Page 21: Chapter 7: Configuring Your Network With The Cable/Dslrouter
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 4. Click the Properties button, and then choose the IP Address tab. Select Chapter 7: Configuring Your Obtain an IP address automatically. Click the OK button. Network with the Cable/DSLRouter You have now completed the PC’s client settings, so it can connect to the Router. -
Page 22: Configuring The Cable/Dsl Router
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 3. The Cable/DSL Router’s Setup page will appear. Refer to the Setup sec- Configuring the Cable/DSL Router tion of the “Chapter 8: The Cable/DSL Router’s Web-based Utility” for con- Now that your TCP/IP setup is complete, you can begin configuring your figuration information. -
Page 23: Chapter 8: The Cable/Dsl Router's Web-Based Utility
In this section, you’ll find brief descriptions of each web page in the Utility and each page’s key functions. More detailed explanations and instructions can be found at Linksys’s website, www.linksys.com. To apply any of the settings you change on a page, click the Apply button, and then click the Continue button. -
Page 24: Setup
DSL you are using. Future versions of the Router’s firmware will be posted and line, check with available for download on the Linksys website at www.linksys.com. your ISP to see if they use PPPoE. • Device IP Address and Subnet Mask The values for the Router’s IP If they do, you Address and Subnet Mask are shown here. - Page 25 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers PPTP Point Point T u n n e l i n g Protocol (PPTP) is service that applies for con- nections in Europe only. Specify WAN IP Address This is the IP address that your Router has, when seen from the...
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Page 26: Password
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Password Remote Access Service (RAS) is a service that applies for con- nections Singapore only. users Singapore, check with Singtel for information on RAS. User Name and Password Enter the User Name Password supplied Figure 8-7... -
Page 27: Status
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers • WAN These fields display the WAN IP Address, WAN Subnet Mask and Status WAN Default Gateway IP address of the Router, as seen by external users on the Internet. The DNS (Domain Name System) IP Address fields show the IP address(es) of the DNS currently used by the Router. -
Page 28: Dhcp
Log information does not go to another computer with a dynamic IP address. Click the Apply button and then the Continue button when you’re done. You may download the Logviewer software at www.linksys.com for more information. 3. Click on Outgoing Access Log or Incoming Access Log to view each log. -
Page 29: Security
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers ZoneAlarm Pro Settings Security If you have downloaded ZoneAlarm Pro, complete this section. License Key Enter the License Key for ZoneAlarm Pro. The License Key will be e-mailed to you after you purchase ZoneAlarm Pro. Enforce ZoneAlarm Pro Security Click this box to enable ZoneAlarm Pro on your router. -
Page 30: Help
Router’s firmware. Upgrade button and follow the instructions there. New firmware versions are posted at www.linksys.com and can be downloaded Advanced for free. If your Router can access the Internet already, there’s no need to When you click the Advanced tab, you will be able to set up advanced features. -
Page 31: Ip Filtering
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers SPI (Stateful Packet Inspection) IP Filtering • This feature checks the state of a packet to verify that the destination IP IP filters block specific internal address matches the source IP of the original request. To use the firewall, users from accessing... -
Page 32: Port Range Forwarding
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Using Remote Upgrade If you need to forward all ports to one PC, see the DMZ section. • This feature allows you to upgrade your Router’s firmware from a remote To add a server using Port Range Forwarding: location. - Page 33 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers • Telnet • HTTP (HyperText Transport Protocol) The communications protocol used t e r m i n a l to connect to servers on the World Wide Web. Its primary function is to e m u l a t i o n establish a connection with a Web server and transmit HTML pages to the p r o t o c o l...
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Page 34: Dynamic Routing
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 5. Enter the IP address of the server that you want the Internet users to be able Dynamic Routing to access. To find the IP address, go to “Appendix F: Finding the MAC Address and IP Address for Your Network Adapter.”... -
Page 35: Static Routing
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 2. Enter the following data to create a new static route: Static Routing Destination LAN IP: The Destination LAN IP is the address of the remote network or host to which you want to assign a static route. Enter the IP address of the host for which you wish to create a static route here. -
Page 36: Dmz Host
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers DMZ Host MAC Address Clone Note: This is a sample screen. Please enter the Address for your Network C a r d / A d a p t e r into this field. Figure 8-22 Figure 8-21 The Router’s MAC address is a 12-digit code assigned to a unique piece of... -
Page 37: Appendix A: Troubleshooting
If you can’t the following IP address option. find an answer here, check the Linksys website at www.linksys.com. 4. Enter a unique IP address that is not used by any other computer on the network connected to the Router. - Page 38 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers For Windows XP: For Windows XP: 1. Click on Start, Control Panel. If your view is already Classic View, pro- • Click on Start, Control Panel. If your view is already Classic View, pro- ceed to step 2.
- Page 39 4. I am not able to access the Router’s web interface Setup page. 1. Refer to “Problem #2, I want to test my Internet connection” to verify that Check the Linksys website for more information at www.linksys.com. your computer is properly connected to the Router.
- Page 40 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 6. I need to set up a server behind my Router. 7. I need to set up online game hosting or use other Internet applications. To use a server like a web, ftp, or mail server, you need to know the respective If you want to play online games or use Internet applications, most will work without doing any port forwarding or DMZ hosting.
- Page 41 Password tab. 2. Enter a different password in the Router Password field, and enter the 1. Go to the Linksys website at http://www.linksys.com and download the same password in the second field to confirm the password. latest firmware.
- Page 42 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 13. The firmware upgrade failed, and/or the Diag LED is flashing. 15. I can't access my email, web, or VPN, or I am getting corrupted data from the The upgrade could have failed for a number of reasons. Follow these steps to Internet.
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Page 43: Frequently Asked Questions
Does the Cable/DSL Router support any operating system other than Windows 95, Windows 98, Windows 2000, Windows NT, or Windows XP? Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of any non-Windows operating systems. - Page 44 I set up an Unreal Tournament Server, but others on the LAN cannot join. What do How will I be notified of new router firmware upgrades? All Linksys firmware I need to do? If you have a dedicated Unreal Tournament server running, you upgrades are posted on the Linksys website at www.linksys.com, where they...
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Page 45: Appendix B: Glossary
For example, Ethernet 10/100 cards, hubs, and switches can determine the highest speed of the node If your questions are not addressed here, refer to the Linksys website, they are connected to and adjust their transmission rate accordingly. - Page 46 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Broadband - A data-transmission scheme in which multiple signals share the CSMA/CD (Carrier Sense Multiple Access/Collision Detection) - The LAN bandwidth of a medium. This allows the transmission of voice, data, and video access method used in Ethernet.
- Page 47 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers DMZ - (DeMilitarized Zone) allows one IP address (or computer) to be Ethernet - IEEE standard network protocol that specifies how data is placed exposed to the Internet. Some applications require multiple TCP/IP ports to be on and retrieved from a common transmission medium.
- Page 48 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Full Duplex - The ability of a device or line to transmit data simultaneously in IPCONFIG - A utility that provides for querying, defining and managing IP both directions. addresses within a network. A commonly used utility, under Windows NT and 2000, for configuring networks with static IP addresses.
- Page 49 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers NetBEUI (NetBIOS Extended User Interface) - The transport layer for Partitioning - To divide a resource or application into smaller pieces. NetBIOS. NetBIOS and NetBEUI were originally part of a single protocol suite that was later separated.
- Page 50 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers diagnostic tool or debugging feature, especially when fending off an attack. It control programs such as the operating system and database management sys- enables the administrator to keep close track of switch performance and alter it tem (DBMS).
- Page 51 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers TCP/IP - Transmission Control Protocol/Internet Protocol (TCP/IP) is the URL (Uniform Resource Locator) - The address that defines the route to a file basic communication language or protocol of the Internet. It can also be used on the Web or any other Internet facility.
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Page 52: Appendix C: How To Ping Your Isp's E-Mail & Web Addresses
Internet. For example, www.linksys.com is actually 216.23.162.142. Type it into window. your web browser and you will wind up at the Linksys home page every time. There are servers that translate the URL to an IP address; this is called Domain 3. -
Page 53: Appendix D: Installing The Tcp/Ip Protocol
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Step Two: Pinging for a Web Address Appendix D: Installing the While the IP address returned above would work as your e-mail server address, T C P/ I P Protocol it may not be permanent. IP addresses change all the time. Web addresses, how- ever, usually don’t. -
Page 54: Appendix E: Twisted-Pair Cabling
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 6. Find and double-click TCP/IP in the list to the right (see Figure D-2). Appendix E: Twisted-Pair Cabling There are different grades, or “categories,” of twisted-pair cabling. Category 5 is the most reliable and most highly recommended. Category 3 is a good sec- ond choice. -
Page 55: Crimping Your Own Network Cables
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Appendix F: Finding the MAC Crimping Your Own Network Cables Address and IP Address for Your • Straight-Through Cabling Network Adapter This section describes how to find the MAC address for your network adapter to do either MAC Filtering or MAC Address Cloning for your Router and ISP. - Page 56 Instant Broadband Series ® ™ EtherFast Cable/DSL Routers 3. Write down the Adapter Address as shown on your computer screen (see 2. In the command prompt, type ipconfig /all. Then press the Enter key. Figure F-3). This is the MAC address for your network adapter and will be shown as a series of numbers and letters.
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Page 57: Appendix G: 4-Port Router Specifications
When entering the information using the Router’s Web-based Utility, you will Appendix G: 4-Port Router type the 12-digit MAC address in this format, XXXXXXXXXXXX without the hyphens for MAC Filtering. See Figure F-6. Specifications Model Number BEFSR41 ver. 2 Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX) Protocol CSMA/CD Ports... -
Page 58: Appendix H: 1-Port Router Specifications
Instant Broadband Series ® ™ EtherFast Cable/DSL Routers Appendix H: 1-Port Router Appendix I: 3-Port Router Specifications Specifications 1-Port Router Specifications Model Number BEFSRU31 Model Number BEFSR11, ver. 2 Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX) Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX) Protocol CSMA/CD Protocol... -
Page 59: Appendix J: Warranty Information
For help with the installation or operation of your Instant Broadband EtherFast BE SURE TO HAVE YOUR PROOF OF PURCHASE AND A BARCODE Cable/DSL Router, contact Linksys Technical Support at one of the phone FROM THE PRODUCT'S PACKAGING ON HAND WHEN CALLING. - Page 60 © Copyright 2002 Linksys, All Rights Reserved.