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®
A Division of Cisco Systems, Inc.
®
EtherFast
Cable/DSL Router
with 8-Port Switch
User Guide
WIRED
Model No.
BEFSR81
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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. Look for the following items when reading this Guide: This checkmark means there is a Note of interest and is so
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EtherFast Cable/DSL Router with 8-Port Switch Table of Contents Chapter 1: Introduction 1 Welcome 1 What’s in this Guide? 2 Chapter 2: Networking Basics 4 An Introduction to LANs 4 The Use of IP Addresses 4 Chapter 3: Getting to Know the Router 6 The Back Panel 6 The Front Panel 7 Chapter 4: Connecting the Router 8 Overview 8 Connection Instructions 9 Chapter 5: Configuring the PCs 10 Overview 10 Configuring Windows 98 and Millennium PCs 10 Configuring Windows 2000 PCs 11 Configuring Windows XP
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EtherFast Cable/DSL Router with 8-Port Switch UPnP Forwarding 30 DMZ 31 QoS 32 Management 33 Log 35 Factory Defaults 36 Firmware Upgrade 37 Router 37 Local Network 38 Appendix A: Troubleshooting 39 Common Problems and Solutions 39 Frequently Asked Questions 49 Appendix B: Upgrading Firmware 53 Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter 54 Windows 98 or Me Instructions 54 Windows 2000 or XP Instructions 54 For the Router’s Web-based Utility 55 Appendix D: Wi
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EtherFast Cable/DSL Router with 8-Port Switch List of Figures Figure 3-1: Back Panel 6 Figure 3-2: Front Panel 7 Figure 4-1: Example of a Typical Network 8 Figure 4-2: Connect a PC 9 Figure 4-3: Connect the Power 9 Figure 5-1: TCP/IP for Windows 98 and Me 10 Figure 5-2: Obtain an IP address automatically for Windows 98 and Me 10 Figure 5-3: Internet Protocol (TCP/IP) for Windows 2000 11 Figure 5-4: Obtain an IP address automatically for Windows 2000 11 Figure 5-5: Internet Protocol (TCP/IP) for
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EtherFast Cable/DSL Router with 8-Port Switch Figure 7-9: DDNS Disabled 23 Figure 7-10: DDNS Using DynDNS.org 24 Figure 7-11: DDNS Using TZO.com 24 Figure 7-12: MAC Clone 25 Figure 7-13: Advanced Routing 25 Figure 7-14: Routing Table 26 Figure 7-15: Filter 27 Figure 7-16: MAC Filter Setting 27 Figure 7-17: VPN Passthrough 28 Figure 7-18: Port Range Forwarding 28 Figure 7-19: Port Triggering 29 Figure 7-20: UPnP Forwarding 30 Figure 7-21: DMZ 32 Figure 7-22: QoS 32 Figure 7-23: Management 33 Figu
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EtherFast Cable/DSL Router with 8-Port Switch Chapter 1: Introduction Welcome Thank you for choosing the EtherFast Cable/DSL Router with 8-Port Switch. This Router will allow your computers to share a high-speed Internet connection as well as resources, including files and printers. How does the Router do all of this? By connecting your computers and peripherals to the Router and connecting the Router to your cable or DSL modem, then the Router can direct and control communications for your ne
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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: Chapter 4: Connecting the Router This chapter instructs you on how to connect the cable or DSL modem to the Router and connect the PC(s) to the Router. Chapter 5: Configuring the PCs This chapter instructs you on how to configure
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EtherFast Cable/DSL Router with 8-Port Switch Appendix D: Windows Help This appendix describes how you can use Windows Help for instructions about networking, such as installing the TCP/IP protocol. Appendix E: Glossary This appendix gives a brief glossary of terms frequently used in networking. Appendix F: Specifications This appendix provides the technical specifications for the Router. Appendix G: Warranty Information This appendix supplies the warranty information for the Router.
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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. The Router’s Network Address Translation (NAT) technology protects your network of PCs so users on the Internet NAT (Network
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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. For DSL users, many ISPs may require you to log on with a user name and pas
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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. 1-8 These eight Ethernet ports connect to network devices, such as PCs, print servers, or additional switches. Reset Button The Reset button can be used in one of two ways: If the Router is having problems connecting to the I
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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 QoS Green. The QoS LED lights up when the QoS feature is active. Power Green. The Power LED lights up when the Router is powered on. If the LED is flashing, the Router is running a diagnostic test. Ethernet Green. The Ethernet LED serves two purposes. If the LED is continuously lit, the Router is connected to a devic
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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.) Configure the Router with the set
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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). Connect the other end to an Ethernet port on a network device, e.g., a PC, print server, hub, or switch. Repeat this step to connect more PCs or other network devices
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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). Computers use IP addresses to communicate with each other across a network or the Internet. Note: These instructions apply only to Windows 98, Millennium, 2000, or XP computers. By defau
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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” is the letter of your CD-ROM drive). 6. Windows may ask you to restart your PC. Click the Yes button. If Windows does not ask you to restart, restart your computer anyway. Go to “Chapter 6: Configuring the Router.” Conf
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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. 5. Restart your computer. Go to “Chapter 6: Configuring the Router.” Figure 5-5: Internet Protocol (TCP/IP) for Windows XP Figure 5-6: Obtai
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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. Overview The instructions from your ISP tell you how to set up your PC for Internet access. Because you are now using the Router to share Internet access among several computers, you will
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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: If you are running Netscape Navigator, click Edit >> Preferences >> Advanced >> Proxies. Click Direct Connection to the Internet. If you are running Internet Explorer 5.x or higher, click S
