Cisco LINKSYS Etherfast BEFSR41 User Manual
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Cisco LINKSYS Etherfast BEFSR41 User Manual

Cable/dsl router with 4-port switch
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Etherfast
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Cable/DSL
Router with 4-Port Switch
Use this guide to install the following product:
BEFSR41
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Summary of Contents for Cisco LINKSYS Etherfast BEFSR41

  • Page 1 Etherfast ® Cable/DSL Router with 4-Port Switch Use this guide to install the following product: BEFSR41 User Guide...
  • Page 2 COPYRIGHT & TRADEMARKS FCC STATEMENT Specifications are subject to change without notice. Copyright © 2003 Cisco Systems, The EtherFast Cable/DSL Router has been tested and complies with the specifications Inc. All rights reserved. Linksys and EtherFast are registered trademarks of Cisco for a Class B digital device, pursuant to Part 15 of the FCC Rules.

  • Page 3: Table Of Contents

    Table of Contents Chapter 6: The Router’s Web-based Utility Chapter 1: Introduction Overview The Linksys EtherFast Cable/DSL Router Navigating the Utility Features Quick and Easy Router Administration An Introduction to LANs and the Internet Basic Setup IP Addresses DDNS Network Setup Overview MAC Address Clone Advanced Routing Chapter 2: Getting to Know the Router...

  • Page 4: Chapter 1: Introduction

    Chapter 1: Introduction The Linksys EtherFast ® Cable/DSL Router The Linksys EtherFast Cable/DSL Router Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter Think of the EtherFast ® Cable/DSL Router with 4-Port Switch as a kind of “splitter”...

  • Page 5: An Introduction To Lans And The Internet

    An Introduction to LANs and the Internet IP Addresses What’s an IP Address? Simply put, a router is a network device that connects two networks together. IP stands for Internet Protocol. Every device on an IP-based network, includ- In this instance, the Router connects your Local Area Network (LAN), or the ing PCs, print servers, and routers, requires an IP address to identify its “loca- group of PCs in your home or office, to the Internet.

  • Page 6: Network Setup Overview

    Dynamic IP Addresses Network Setup Overview A dynamic IP address is automatically assigned to a device on the network, such as PCs and print servers. These IP addresses are called “dynamic” This user guide covers the basic steps for setting up a network with a router. because they are only temporarily assigned to the PC or device.

  • Page 7: Chapter 2: Getting To Know The Router

    Chapter 2: Getting to Know the The Router’s Front Panel LEDs Router The Router’s Rear Panel Figure 2-2 Green. The Power LED lights up when the Router is powered Power on. If the LED is flickering, the Router is doing a diagnostic test.

  • Page 8: Chapter 3: Connect The Router

    Chapter 3: Connect the Router Note: A standard port is any port that fits an RJ-45 connector. The port must fit the connector on the Ethernet network cable. Overview Repeat this step to connect more PCs or network devices to the Router. To set up your network, you will have to configure your networked PCs to accept the IP addresses that the Router assigns them (if applicable), and you 3.

  • Page 9: Chapter 4: Configure The Pcs

    Chapter 4: Configure the PCs Configuring Windows 98 and Millennium PCs 1. Click the Start button. Click Settings and then Control Panel. From there, Overview double-click the Network icon. The instructions in this chapter will help you configure each of your comput- 2.

  • Page 10: Configuring Windows 2000 Pcs

    3. Click the IP Address tab and select Obtain an IP address automatically, Configuring Windows 2000 PCs as shown in Figure 4-2. 1. Click the Start button. Click Settings and then Control Panel. From there, double-click the Network and Dial-up Connections icon. 2.

  • Page 11: Configuring Windows Xp Pcs

    4. Select Internet Protocol (TCP/IP), as shown in Figure 4-4, and click the Configuring Windows XP PCs Properties button. The following instructions assume you are running Windows XP with the default interface. If you are using the Classic interface (where the icons and menus look like previous Windows versions), please follow the instructions for Windows 2000.

  • Page 12: Chapter 5: Configure The Router

    4. Select Internet Protocol (TCP/IP), as shown in Figure 4-7, and click the Chapter 5: Configure the Router Properties button. Note: Linksys recommends using the Setup CD for first time instal- lation of the Router and for setting up additional computers. For addi- tional assistance, follow the steps in this chapter.
  • Page 13 Static IP Address or Specify IMPORTANT: If you have previously enabled any Internet-sharing an IP Address proxy server software on any of your PCs, you must disable it now. Some examples of Internet-sharing software are Internet LanBridge, If your ISP says that you are Wingate, ICS, and Sygate.
  • Page 14 PPPoE PPTP If your DSL provider says PPTP (shown in Figure 5-8) that you are connecting is a service used in Europe through PPPoE or if you nor- only. If you are using a PPTP mally enter a user name and connection, check with your password access...

  • Page 15: Chapter 6: The Router's Web-Based Utility

    4. In the Optional Settings section, you may need to provide a host name and Chapter 6: The Router’s domain name for the Router. These fields are usually left blank. If request- ed by your ISP (usually cable ISPs), complete these two fields. Web-based Utility 5.

  • Page 16: Quick And Easy Router Administration

    Applications & Gaming When finished making your changes on a tab, click the Save Settings button to Port Range Forwarding - To set up public services or other specialized save the changes, or click the Cancel Changes button to undo your changes. Internet applications on your network, click this tab.
  • Page 17 Static IP PPPoE If you are required to Some DSL-based ISPs use a permanent IP use PPPoE (Point-to- address, then select Point Protocol over Static IP, as shown in Ethernet) to establish Figure 6-5. Internet connections for end-users. If you IP Address This is the use a DSL line, check IP address...
  • Page 18 RAS (for SingTel) PPTP Remote Access Service Point to Point Tunneling (RAS) (shown Protocol (PPTP), shown in Figure 6-7) is a service Figure 6-8, is a service that that applies to connec- applies to connections in tions in Singapore only. Europe only.
  • Page 19 Heart Beat Signal Optional Settings Host Name and Domain Name These fields allow you to supply a host and domain name for the Router. Some ISPs require these names as identification. Heart Beat Signal You may have to check with your ISP to see if your broadband Internet service (shown in Figure 6-9) is has been configured with a host and domain name.

  • Page 20: Ddns

    DHCP Address Range The range of DHCP addresses is displayed here. DDNS Client Lease Time The Client Lease Time is the amount of time a network user will be allowed connection to the Router with their current dynamic IP address. Enter the amount of time, in minutes, that the user will be “leased”...
  • Page 21 DynDNS.org TZO.com Figure 6-11 Figure 6-12 User Name, Password, and Host Name Enter the User Name, Password, and Email Address, TZO Password Key, and Domain Name Enter the Email Host Name of the account you set up with DynDNS.org. Address, TZO Password Key, and Domain Name of the service you set up with TZO.

  • Page 22: Mac Address Clone

    MAC Address Clone Advanced Routing Figure 6-13 The Router’s MAC address is a 12-digit code assigned to a unique piece of hardware for identification, like a social security number. If your ISP requires MAC address registration, find your adapter’s MAC address by following the instructions in “Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter.”...
  • Page 23 Receive RIP Version To use dynamic routing for reception of network data, Show Routing Table Click the Show Routing Table button to open a screen select the protocol you want: RIP1 or RIP2. displaying how data is routed through your LAN. For each route, the Destination LAN IP address, Subnet Mask, Default Gateway, Hop Count, and Static Routing If the Router is connected to more than one network, it may be Interface are displayed.

  • Page 24: Filter

    Filter Port Range Filter To filter users by network port number, select the protocol you want to filter, TCP, UDP, or Both, in the Protocol drop-down box. Enter the port numbers you want to filter in the Start and End fields. Users connected to the Router will no longer be able to access any port number listed there.

  • Page 25: Vpn Passthrough

    VPN Passthrough Port Range Forwarding Figure 6-18 The VPN screen allows you to enable or disable pass-through for a variety of VPN methods. VPN PassThrough IPSec Passthrough Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec Passthrough, click the Enabled button.

  • Page 26: Port Triggering

    Port Range Forwarding Port Triggering Port Range To add a server using Port Range Forwarding, complete the fol- lowing fields: Application Enter the name of the application. Start and End Enter the number or range of external ports(s) used by the serv- er or Internet application.

  • Page 27: Upnp Forwarding

    Forwarded Range For each application, list the forwarded port number range. UPnP Forwarding Check with the Internet application documentation for the port number(s) needed. 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 28 Telnet A terminal emulation protocol commonly used on Internet and TCP/IP- Ext. Port Enter the number of the external port used by the server in the Ext. based networks. It allows a user at a terminal or computer to log onto a remote Port column.

  • Page 29: Dmz

    Management Figure 6-22 The DMZ screen allows one local user to be exposed to the Internet for use of a special-purpose service such as Internet gaming and videoconferencing. Whereas Port Range Forwarding can only forward a maximum of 10 ranges of ports, DMZ hosting forwards all the ports for one PC at the same time.

  • Page 30: Log

    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. Remote Administration must be activated before you can access the Router from a remote location. Remote Administration This feature allows you to manage the Router from a remote location, via the Internet.

  • Page 31: Factory Defaults

    Outgoing Log Click the Outgoing Log button to view a temporary log of all Factory Defaults all the URLs and IP addresses of Internet sites that users on your network have accessed. The LAN IP address, Destination URL/IP, and Service/Port Number for each site are listed.

  • Page 32: Firmware Upgrade

    Firmware Upgrade Router Figure 6-29 The Firmware Upgrade screen allows you to upgrade the Router’s firmware. Note: By upgrading the Router’s firmware, you may lose the Router’s configuration settings. Figure 6-30 Before upgrading the firmware, download the Router’s firmware upgrade file from the Linksys website, www.linksys.com.

  • Page 33: Local Network

    Internet IP Address The Router’s Internet IP Address is displayed here. Local Network Subnet Mask and Default Gateway The Router’s Subnet Mask and Default Gateway address are displayed here for DHCP and static IP connections. Primary DNS and Secondary DNS Shown here are the DNS (Domain Name System) IP addresses currently used by the Router.

  • Page 34: Appendix A: Troubleshooting

    Appendix A: Troubleshooting Common Problems and Solutions This appendix consists of two parts: “Common Problems and Solutions” and “Frequently Asked Questions.” Provided are possible solutions to problems regarding the installation and operation of the Router. If your situation is described here, the problem should be solved by applying the corresponding solution.
  • Page 35 For Windows 2000: (provided by your ISP). Contact your ISP or go on its website to find the infor- mation. A. Click Start, Settings, and Control Panel. Double-click Network and I. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Dial-Up Connections.
  • Page 36 • Click the OK button in the Internet Protocol (TCP/IP) Properties win- 3. I am not getting an IP address on the Internet with my Internet connection. dow, and click the OK button in the Local Area Connection Properties A. Refer to “Problem #2, I want to test my Internet connection” to verify that window.
  • Page 37 5. I can’t get my Virtual Private Network (VPN) to work through the Router. 6. I need to set up a server behind my Router. Access the Router’s web interface by going to http://192.168.1.1 or the IP To use a server like a web, ftp, or mail server, you need to know the respective address of the Router, and go to the Security =>...
  • Page 38 7. I need to set up online game hosting or use other Internet applications. 8. I can’t get the Internet game, server, or application to work. If you want to play online games or use Internet applications, most will work If you are having difficulties getting any Internet game, server, or application without doing any port forwarding or DMZ hosting.
  • Page 39 10. I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop- 13. The firmware upgrade failed. up window. The upgrade could have failed for a number of reasons. Follow these steps to upgrade the firmware: If you have proxy settings, you need to disable these on your computer.
  • Page 40 15. I can't access my email, web, or VPN, or I am getting corrupted data from the 17. When I enter a URL or IP address, I get a time-out error or am prompted to retry. Internet. • Check if other PCs work. If they do, ensure that your workstation’s IP set- tings are correct (IP Address, Subnet Mask, Default Gateway, and DNS).

  • Page 41: Frequently Asked Questions

    can also use a port forwarding range of 7777 to 27900. If you want to use the Frequently Asked Questions UT Server Admin, forward another port (8080 usually works well but is used What is the maximum number of IP addresses that the Router will support? The for remote admin.
  • Page 42 no need to download a newer firmware version, unless that version contains Does the Router replace a modem? Is there a cable or DSL modem in the Router? new features that you would like to use. Downloading a more current version No, this version of the Router must work in conjunction with a cable or DSL of Router firmware will not enhance the quality or speed of your Internet con- modem.

  • Page 43: Appendix B: Glossary

    Appendix B: Glossary Bridge - A device that interconnects different networks together. Broadband - A data-transmission scheme in which multiple signals share the 10BaseT - An Ethernet standard that uses twisted wire pairs. bandwidth of a medium. This allows the transmission of voice, data, and video signals over a single medium.
  • Page 44 Daisy Chain - Connected in series, one after the other. Transmitted signals go Domain - A subnetwork comprised of a group of clients and servers under the to the first device, then to the second, and so on. control of one security database. Dividing LANs into domains improves per- formance and security.
  • Page 45 enterprise with an intranet that allows its workers access to the wider Internet the program you put in it to make it do things. The program came to be known installs a firewall to prevent outsiders from accessing its own private data as the software.
  • Page 46 ISP - An ISP (Internet service provider) is a company that provides individuals NetBIOS computers are identified by a unique 15-character name, and Windows and companies access to the Internet and other related services such as website machines (NetBIOS machines) periodically broadcast their names over the net- building and virtual hosting.
  • Page 47 PCI provides “plug and play” capability, automatically configuring the PCI PPTP (Point-to-Point Tunneling Protocol) - A protocol (set of communication cards at startup. When PCI is used with the ISA bus, the only thing that is gen- rules) that allows corporations to extend their own corporate network through erally required is to indicate in the CMOS memory which IRQs are already in private “tunnels”...
  • Page 48 SOHO (Small Office/Home Office) - Market segment of professionals who Throughput - The amount of data moved successfully from one place to anoth- work at home or in small offices. er in a given time period. Static IP Address - A permanent IP address that is assigned to a node in a Topology - A network’s topology is a logical characterization of how the devices TCP/IP network.

  • Page 49: Appendix C: Installing The Tcp/Ip Protocol

    VLAN (Virtual LAN) - A logical association that allows users to communicate Appendix C: Installing the TCP/IP as if they were physically connected to a single LAN, independent of the actual physical configuration of the network. Protocol Virtual Server - Multiple servers that appear as one server, or one system image, to the operating system or for network administration.
  • Page 50 6. Find and double-click TCP/IP in the list to the right (see Figure C-2). Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter This section describes how to find the MAC address for your Ethernet adapter to do either MAC Filtering or MAC Address Cloning for the Router and ISP.
  • Page 51 3. Write down the Adapter Address as shown on your computer screen (see 2. In the command prompt, enter ipconfig /all. Then press the Enter key. Figure D-3). This is the MAC address for your Ethernet adapter and will be shown as a series of numbers and letters. The MAC address/Adapter Address is what you will use for MAC Address Cloning or MAC Filtering.
  • Page 52 When entering the information using the Router’s Web-based Utility, you will Appendix E: Specifications type the 12-digit MAC address in this format, XXXXXXXXXXXX WITH- OUT the hyphens for MAC Filtering. See Figure D-6. Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX) Ports One 10/100 RJ-45 Port for Broadband Modem Four 10/100 RJ-45 Switched Ports...
  • Page 53 Appendix F: Warranty Information Appendix G: Contact Information BE SURE TO HAVE YOUR PROOF OF PURCHASE AND A BARCODE For help with the installation or operation of the EtherFast Cable/DSL Router, FROM THE PRODUCT'S PACKAGING ON HAND WHEN CALLING. contact Linksys Technical Support at one of the phone numbers or Internet RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF addresses below.
  • Page 54 © Copyright 2003 Cisco Systems, Inc. All rights reserved.

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