Linksys EtherFast BEFSR81 User Manual
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Linksys EtherFast BEFSR81 User Manual

Linksys EtherFast BEFSR81 User Manual

Cable/dsl router with 8-port switch
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®
A Division of Cisco Systems, Inc.
®
EtherFast
Cable/DSL Router
with 8-Port Switch

User Guide

WIRED
BEFSR81
Model No.

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  • Page 1: User Guide

    ® A Division of Cisco Systems, Inc. ® EtherFast Cable/DSL Router with 8-Port Switch User Guide WIRED BEFSR81 Model No.
  • Page 2 EtherFast Cable/DSL Router with 8-Port Switch Copyright and Trademarks Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2003 Cisco Systems, Inc. All rights reserved. How to Use this Guide This User Guide has been designed to make understanding networking with the Router easier than ever.

  • Page 3: Table Of Contents

    EtherFast Cable/DSL Router with 8-Port Switch Table of Contents Chapter 1: Introduction Welcome What’s in this Guide? Chapter 2: Networking Basics An Introduction to LANs The Use of IP Addresses Chapter 3: Getting to Know the Router The Back Panel The Front Panel Chapter 4: Connecting the Router Overview...
  • Page 4 EtherFast Cable/DSL Router with 8-Port Switch UPnP Forwarding Management Factory Defaults Firmware Upgrade Router Local Network Appendix A: Troubleshooting Common Problems and Solutions Frequently Asked Questions Appendix B: Upgrading Firmware Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter Windows 98 or Me Instructions Windows 2000 or XP Instructions...
  • Page 5 EtherFast Cable/DSL Router with 8-Port Switch List of Figures Figure 3-1: Back Panel Figure 3-2: Front Panel Figure 4-1: Example of a Typical Network Figure 4-2: Connect a PC Figure 4-3: Connect the Power Figure 5-1: TCP/IP for Windows 98 and Me Figure 5-2: Obtain an IP address automatically for Windows 98 and Me Figure 5-3: Internet Protocol (TCP/IP) for Windows 2000 Figure 5-4: Obtain an IP address automatically for Windows 2000...
  • Page 6 EtherFast Cable/DSL Router with 8-Port Switch Figure 7-9: DDNS Disabled Figure 7-10: DDNS Using DynDNS.org Figure 7-11: DDNS Using TZO.com Figure 7-12: MAC Clone Figure 7-13: Advanced Routing Figure 7-14: Routing Table Figure 7-15: Filter Figure 7-16: MAC Filter Setting Figure 7-17: VPN Passthrough Figure 7-18: Port Range Forwarding Figure 7-19: Port Triggering...

  • Page 7: Chapter 1: Introduction

    To create your network, install and set up the Router. To guide you through the process, Linksys strongly recommends that you run the Setup Wizard on the Setup CD-ROM. If you prefer to manually set up the Router, Ethernet: an IEEE standard network protocol use the instructions in the Quick Installation or this User Guide to help you.

  • Page 8: What's In This Guide

    EtherFast Cable/DSL Router with 8-Port Switch What’s in this Guide? This user guide covers the basic steps for setting up a network with a router. After going through “Chapter 3: Getting to Know the Router,” most users will only need to use the following chapters: •...
  • Page 9 • Appendix H: Regulatory Information This appendix supplies the regulatory information regarding the Router. • Appendix J: Contact Information This appendix provides contact information for a variety of Linksys resources, including Technical Support. Chapter 1: Introduction What’s in this Guide?

  • Page 10: Chapter 2: Networking Basics

    EtherFast Cable/DSL Router with 8-Port Switch Chapter 2: Networking Basics An Introduction to LANs Simply put, a router is a network device that connects two networks together. The Router connects your local area network (LAN), or the group of PCs in your home or office, to the Internet. The Router processes and regulates the data that travels between these two networks.
  • Page 11 EtherFast Cable/DSL Router with 8-Port Switch A DHCP server can either be a designated PC on the network or another network device, such as the Router. By default, the Router’s Internet Connection Type is Obtain an IP automatically (DHCP). The PC or network device obtaining an IP address is called the DHCP client. DHCP frees you from having to assign IP addresses manually every time a new user is added to your network.

  • Page 12: Chapter 3: Getting To Know The Router

    EtherFast Cable/DSL Router with 8-Port Switch Chapter 3: Getting to Know the Router The Back Panel The Router’s ports and the Reset button are located on the back panel of the Router. Figure 3-1: Back Panel Internet This Internet port connects to your cable or DSL modem. These eight Ethernet ports connect to network devices, such as PCs, print servers, or additional switches.

  • Page 13: The Front Panel

    EtherFast Cable/DSL Router with 8-Port Switch The Front Panel The Router’s LEDs, which inform you about network activities, are located on the front panel. Figure 3-2: Front Panel Green. The QoS LED lights up when the QoS feature is active. Power Green.

  • Page 14: Chapter 4: Connecting The Router

    EtherFast Cable/DSL Router with 8-Port Switch Chapter 4: Connecting the Router Overview To set up your network, do the following: • Connect the Router to one of your PCs. • If necessary, configure your PCs to obtain an IP address automatically from the Router. (By default, Windows 98, 2000, Millennium, and XP computers are set to obtain an IP address automatically, so unless you have changed the default setting, then you will not need to configure your PCs.) •...

  • Page 15: Connection Instructions

    EtherFast Cable/DSL Router with 8-Port Switch Connection Instructions 1. Before you begin, make sure that all of your hardware is powered off, including the Router, PCs, hubs, switches, and cable or DSL modem. 2. Connect one end of an Ethernet network cable to one of the numbered ports on the back of the Router (see Figure 4-2).

  • Page 16: Chapter 5: Configuring The Pcs

    EtherFast Cable/DSL Router with 8-Port Switch Chapter 5: Configuring the PCs Overview The instructions in this chapter will help you configure each of your computers so they will be able to communicate with the Router. Each PC must be set to obtain an IP address (or TCP/IP) address automatically (called DHCP).

  • Page 17: Configuring Windows 2000 Pcs

    EtherFast Cable/DSL Router with 8-Port Switch 5. Click the OK button again. Windows may ask you for the original Windows installation disk or additional files. Supply them by pointing to the correct file location, e.g., D:\win98, D:\win9x, c:\windows\options\cabs, etc. (if “D”...

  • Page 18: Figure 5-5: Internet Protocol (Tcp/Ip) For Windows Xp

    EtherFast Cable/DSL Router with 8-Port Switch 3. Select Internet Protocol (TCP/IP), and click the Properties button. See Figure 5-5. 4. Select Obtain an IP address automatically (see Figure 5-6). Once the new window appears, click the OK button. Click the OK button again (or the Close button if any settings were changed) to complete the PC configuration.

  • Page 19: Chapter 6: Configuring The Router

    EtherFast Cable/DSL Router with 8-Port Switch Chapter 6: Configuring the Router Note: Linksys recommends using the Setup CD-ROM for first-time installation of the Router and setting up additional computers. If you do not wish to run the Setup Wizard on the Setup CD-ROM, then follow the steps in this chapter.

  • Page 20: Figure 6-3: Obtain An Ip Automatically For Basic Setup

    EtherFast Cable/DSL Router with 8-Port Switch Note: If you have previously enabled Internet-sharing proxy server software on any of your PCs, you must disable it now. Some examples of Internet-sharing software are Internet LanBridge, Wingate, ICS, and Sygate. To disable your Internet sharing software: •...

  • Page 21: Figure 6-5: Pppoe For Basic Setup

    EtherFast Cable/DSL Router with 8-Port Switch PPPoE If your ISP says that you are connecting through a PPPoE or you normally enter a user name and password to access the Internet, perform these steps: A Select PPPoE as the Internet Connection Type, as shown in Figure 6-5. B Enter the User Name and Password.

  • Page 22: Figure 6-7: Pptp For Basic Setup

    7. Restart your computers so that they can obtain the Router’s new settings. 8. Congratulations! You’ve successfully configured the Router. Test the setup by opening your web browser from any computer and entering www.linksys.com/registration, as shown in Figure 6-9. Figure 6-9: Router Registration for Basic Setup If you are unable to reach our website, you may want to review what you did in this section or refer to “Appendix A: Troubleshooting.”...

  • Page 23: Chapter 7: Using The Router's Web-Based Utility

    EtherFast Cable/DSL Router with 8-Port Switch Chapter 7: Using The Router’s Web-based Utility Overview For your convenience, use the Router’s Web-based Utility to administer it. This chapter will explain all of the functions in this Utility. The Utility can be accessed via Microsoft Internet Explorer or Netscape Navigator through use of a computer connected with an Ethernet cable to the Router.

  • Page 24: Quick And Easy Administration

    EtherFast Cable/DSL Router with 8-Port Switch • VPN Passthrough. To enable or disable IPSec, PPPoE, and/or PPTP Passthrough, use this screen. Applications & Gaming • Port Range Forwarding. To set up public services or other specialized Internet applications on your network, click this tab.

  • Page 25: Basic Setup

    EtherFast Cable/DSL Router with 8-Port Switch When finished making your changes on a tab, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes. For further help on the tab, click the Help button. Basic Setup The Basic Setup screen is the first screen you see when you access the Web-based Utility.

  • Page 26: Figure 7-5: Pppoe

    EtherFast Cable/DSL Router with 8-Port Switch • User Name and Password. Enter the User Name and Password provided by your ISP. • Service Name. If provided by your ISP, enter the Service Name. • Connect on Demand and Max Idle Time. You can configure the Router to cut your connection with your ISP after a specified period of time (Max Idle Time).

  • Page 27: Figure 7-7: Pptp

    EtherFast Cable/DSL Router with 8-Port Switch • Keep Alive Option and Redial Period. This option keeps your RAS-enabled Internet access connected indefinitely, even when it sits idle. To use this option, click the radio button next to Keep Alive. The default Redial Period is 30 seconds.

  • Page 28: Figure 7-8: Heart Beat Signal

    EtherFast Cable/DSL Router with 8-Port Switch • User Name and Password. Enter the User Name and Password provided by your ISP. • Heart Beat Server. This is the IP address that the Router has, when seen from the Internet. Your ISP will provide you with the IP Address you need to specify here.

  • Page 29: Ddns

    EtherFast Cable/DSL Router with 8-Port Switch Network Address Server Settings (DHCP) A Dynamic Host Configuration Protocol (DHCP) server automatically assigns an IP address to each PC on your network for you. Unless you already have one, it is highly recommended that you leave the Router enabled as a DHCP server.

  • Page 30: Mac Address Clone

    EtherFast Cable/DSL Router with 8-Port Switch DDNS • DDNS Service. If your DDNS service is provided by DynDNS.org, then select DynDNS.org from the drop-down menu. If your DDNS service is provided by TZO, then select TZO.com. The features available on the DDNS screen will vary, depending on which DDNS service provider you use.

  • Page 31: Advanced Routing

    EtherFast Cable/DSL Router with 8-Port Switch MAC Clone • MAC Clone Service To use MAC address cloning, select Enable. See Figure 7-12. • MAC Address. To manually clone a MAC address, enter the 12 digits of your adapter’s MAC address in the on- screen fields.

  • Page 32: Filter

    EtherFast Cable/DSL Router with 8-Port Switch • Select Entry. Select the number of the static route from the drop-down menu. The Router supports up to 20 static route entries. • Delete Entry. If you need to delete a route, select its number from the drop-down menu, and click the Delete Entry button.

  • Page 33: Figure 7-15: Filter

    EtherFast Cable/DSL Router with 8-Port Switch Filter IP Address Range To set up a filter using IP addresses, enter the range of IP addresses you wish to filter in the Start and End fields. Users who have filtered IP addresses will not be able to access the Internet at all. If you only want to filter one IP address instead of a range of IP addresses, enter the same value into both fields.

  • Page 34: Vpn Passthrough

    EtherFast Cable/DSL Router with 8-Port Switch VPN Passthrough The VPN Passthrough screen allows you to enable or disable passthrough for a variety of VPN methods. See Figure 7-17. VPN Passthrough • IPSec Passthrough. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer.

  • Page 35: Port Triggering

    EtherFast Cable/DSL Router with 8-Port Switch • Application. Enter the name of the application. • Start and End. Enter the number or range of external port(s) used by the server or Internet application. Check with the Internet application software documentation for more information. •...

  • Page 36: Upnp Forwarding

    EtherFast Cable/DSL Router with 8-Port Switch • Start Port. Enter the starting port number of the Forwarded Range. • End Port. Enter the ending port number of the Forwarded Range. When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

  • Page 37: Dmz

    EtherFast Cable/DSL Router with 8-Port Switch • HTTP (HyperText Transport Protocol). The communications protocol used to connect to servers on the World Wide Web. Its primary function is to establish a connection with a web server and transmit HTML pages to the client web browser. •...

  • Page 38: Qos

    EtherFast Cable/DSL Router with 8-Port Switch • DMZ. To use this feature, select Enable. To disable DMZ hosting, select Disable (see Figure 7-21). • DMZ Host IP Address. To expose one PC, enter the computer’s IP address. To get the IP address of a computer, refer to “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter.”...

  • Page 39: Management

    EtherFast Cable/DSL Router with 8-Port Switch • SMTP (Simple Mail Transfer Protocol). The standard e-mail protocol on the Internet. It is a TCP/IP protocol that defines the message format and the message transfer agent (MTA), which stores and forwards the mail. •...
  • Page 40 EtherFast Cable/DSL Router with 8-Port Switch Remote Router Access This feature allows you to access the Router from a remote location, via the Internet. • Remote Upgrade. Remote Upgrade allows you to upgrade the Router’s firmware from a remote location. To enable this feature, click the Enabled radio button.

  • Page 41: Log

    • Logviewer IP Address. For a permanent record of these logs, Logviewer software must be used. This software is downloadable from the Linksys website, www.linksys.com. The Logviewer saves all incoming and outgoing activity in a permanent file on your PC’s hard drive. In the Logviewer IP Address field, enter the fixed IP address of the PC running the Logviewer software.

  • Page 42: Factory Defaults

    EtherFast Cable/DSL Router with 8-Port Switch • Incoming Log. Click the Incoming Log button to view a temporary log of the Source IP addresses and Destination Port Numbers for all the incoming Internet traffic. Click the Refresh button to update the log. See Figure 7-25.

  • Page 43: Firmware Upgrade

    The Firmware Upgrade screen allows you to upgrade the Router’s firmware. Note: If you upgrade the Router’s firmware, you may lose its configuration settings. Before upgrading the firmware, download the Router’s firmware upgrade file from the Linksys website, Figure 7-29: Firmware Upgrade www.linksys.com.

  • Page 44: Local Network

    EtherFast Cable/DSL Router with 8-Port Switch • Login Status. The status of the connection is displayed only for PPPoE, RAS, PPTP, or Heart Beat Signal connections. For these dial-up style connections, there is a Connect button to click if there is no connection and you want to establish an Internet connection.

  • Page 45: Appendix A: Troubleshooting

    Appendix A: Troubleshooting This appendix provides solutions to problems that may occur during the installation and operation of the Router. Read the description below to solve your problems. If you can't find an answer here, check the Linksys website at www.linksys.com.
  • Page 46 EtherFast Cable/DSL Router with 8-Port Switch B. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option. C. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP), and click the Properties button.
  • Page 47 EtherFast Cable/DSL Router with 8-Port Switch 2. I want to test my Internet connection. A. Check your TCP/IP settings. For Windows 98 and Millennium: Refer to Windows Help and “Chapter 5: Configuring the PCs” for details. Make sure Obtain IP address automatically is selected in the settings.
  • Page 48 E. In the command prompt, type ping www.linksys.com and press the Enter key. • If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem.
  • Page 49 Refer to “Problem #7, I need to set up online game hosting or use other Internet applications” for details. Check the Linksys website at www.linksys.com for more information. 6. I need to set up a server behind my Router.
  • Page 50 EtherFast Cable/DSL Router with 8-Port Switch documentation provided with the server you installed. Follow these steps to set up port forwarding through the Router’s Web-based Utility. We will be setting up web, ftp, and mail servers. A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications &...
  • Page 51 EtherFast Cable/DSL Router with 8-Port Switch D. Select the protocol you will be using, TCP or UDP, or select Both. E. Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided.
  • Page 52 12. I need to upgrade the firmware. In order to upgrade the firmware with the latest features, you need to go to the Linksys website and download the latest firmware at www.linksys.com. Follow these steps: A. Go to the Linksys website at http://www.linksys.com and download the latest firmware.
  • Page 53 EtherFast Cable/DSL Router with 8-Port Switch B. To upgrade the firmware, follow the steps in the Upgrade section found in “Chapter 7: Using the Router’s Web-based Utility” or “Appendix B: Upgrading Firmware.” 13. The firmware upgrade failed. The upgrade could have failed for a number of reasons. Follow these steps to upgrade the firmware: A.
  • Page 54 EtherFast Cable/DSL Router with 8-Port Switch A. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the Router. B. Enter the password, if asked. (The default password is admin.) C. On the Basic Setup tab, look for the MTU option, and select Enable. In the Size field, enter 1492. D.

  • Page 55: Frequently Asked Questions

    ISP. Does the Router support any operating system other than Windows 98, Millennium, 2000, or XP? Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of any non-Windows operating systems.
  • Page 56 How can I be notified of new Router firmware upgrades? All Linksys firmware upgrades are posted on the Linksys website at www.linksys.com, where they can be downloaded for free. The Router’s firmware can be upgraded with TFTP programs. If the Router’s Internet...
  • Page 57 EtherFast Cable/DSL Router with 8-Port Switch new features that you would like to use. Downloading a more current version of Router firmware will not enhance the quality or speed of your Internet connection, and may disrupt your current connection stability. Will the Router function in a Macintosh environment? Yes, but the Router’s setup pages are accessible only through Internet Explorer 5.0 or Netscape Navigator 5.0 or higher for Macintosh.
  • Page 58 Under the Applications & Gaming => Port Range Forwarding tab, set port forwarding to 113 for the PC on which you are using mIRC. If your questions are not addressed here, refer to the Linksys website, www.linksys.com. Appendix A: Troubleshooting...

  • Page 59: Appendix B: Upgrading Firmware

    Router. To upgrade the Router’s firmware, follow these instructions: 1. Download the Router’s firmware upgrade file from the Linksys website, www.linksys.com. 2. Extract the file on your computer. 3. Click the Administration tab and then the Firmware Upgrade tab of the Router’s Web-based Utility.

  • Page 60: Appendix C: Finding The Mac Address And Ip Address For Your Ethernet Adapter

    EtherFast Cable/DSL Router with 8-Port Switch Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC filtering and/or MAC address cloning feature of the Router. You can also find the IP address of your computer’s Ethernet adapter.

  • Page 61: For The Router's Web-Based Utility

    EtherFast Cable/DSL Router with 8-Port Switch 3. Write down the Physical Address as shown on your computer screen (Figure C-3); it is the MAC address for your Ethernet adapter. This appears as a series of numbers and letters. The MAC address/Physical Address is what you will use for MAC address cloning or MAC filtering. Note: The MAC address is also called the Physical Address.

  • Page 62: Appendix D: Windows Help

    EtherFast Cable/DSL Router with 8-Port Switch Appendix D: Windows Help All networking products require Microsoft Windows. Windows is the most used operating system in the world and comes with many features that help make networking easier. These features can be accessed through Windows Help and are described in this appendix.

  • Page 63: Appendix E: Glossary

    EtherFast Cable/DSL Router with 8-Port Switch Appendix E: Glossary 802.11a - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz. 802.11b - An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.
  • Page 64 EtherFast Cable/DSL Router with 8-Port Switch Buffer - A block of memory that temporarily holds data to be worked on later when a device is currently too busy to accept the data. Cable Modem - A device that connects a computer to the cable television network, which in turn connects to the Internet.
  • Page 65 EtherFast Cable/DSL Router with 8-Port Switch Dynamic IP Address - A temporary IP address assigned by a DHCP server. Encryption - Encoding data to prevent it from being read by unauthorized people. Ethernet - An IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium.
  • Page 66 Passphrase - Used much like a password, a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products. Ping (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online.
  • Page 67 EtherFast Cable/DSL Router with 8-Port Switch PPPoE (Point to Point Protocol over Ethernet) - A type of broadband connection that provides authentication (username and password) in addition to data transport. PPTP (Point-to-Point Tunneling Protocol) - A VPN protocol that allows the Point to Point Protocol (PPP) to be tunneled through an IP network.
  • Page 68 EtherFast Cable/DSL Router with 8-Port Switch TCP/IP (Transmission Control Protocol/Internet Protocol) - A network protocol for transmitting data that requires acknowledgement from the recipient of data sent. Telnet - A user command and TCP/IP protocol used for accessing remote PCs. TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that uses UDP and has no directory or password capability.

  • Page 69: Appendix F: Specifications

    EtherFast Cable/DSL Router with 8-Port Switch Appendix F: Specifications Standards IEEE 802.3 (10BaseT), 802.3u (100BaseTX) Ports One 10/100 RJ-45 Port for Broadband Modem Eight 10/100 RJ-45 Switched Ports Button Reset Cabling Type Ethernet Category 5 LEDs Power, QoS, Ethernet, Internet UPnP able/cert OS Support Windows 98SE/Me/2000/XP...

  • Page 70: Appendix G: Warranty Information

    Linksys product will be free of defects in materials and workmanship under normal use. Your exclusive remedy and Linksys's entire liability under this warranty will be for Linksys at its option to repair or replace the product or refund Your purchase price less any rebates.

  • Page 71: Appendix H: Regulatory Information

    EtherFast Cable/DSL Router with 8-Port Switch Appendix H: Regulatory Information FCC STATEMENT This product has been tested and complies with the specifications 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.

  • Page 72: Appendix I: Contact Information

    Can't find information about a product you want to buy on the web? Do you want to know more about networking with Linksys products? Give our advice line a call at: 800-546-5797 (LINKSYS) Or fax your request in to:...

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