Cisco Systems BEFSR41 manual Table of Contents

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EtherFast Cable/DSL Router with 4-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 Local Area Networks

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 Router

10

Overview

10

How to Access the Web-based Utility

11

The Setup Tab - Basic Setup

12

The Setup Tab - DDNS

18

The Setup Tab - MAC Address Clone

19

The Security Tab - Filter

22

The Security Tab - VPN

24

The Applications & Gaming Tab - Port Range Forwarding

25

The Applications & Gaming Tab - Port Triggering

26

The Applications & Gaming Tab - UPnP Forwarding

27

The Applications & Gaming Tab - DMZ

29

The Applications & Gaming Tab - QoS

30

The Administration Tab - Management

32

The Administration Tab - Log

34

The Administration Tab - Factory Defaults

35

The Administration Tab - Firmware Upgrade

36

The Status Tab - Router

37

The Status Tab - Local Network

38

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Contents Cable/DSL Router How to Use this Guide Copyright and TrademarksWord definition Table of Contents Ethernet Adapter Appendix a TroubleshootingCommon Problems and Solutions Frequently Asked Questions Appendix B Upgrading FirmwareBack Panel List of Figures23 Administration Tab Management Welcome IntroductionWhat’s in this Guide? EtherFast Cable/DSL Router with 4-Port Switch Networking Basics An Introduction to Local Area NetworksUse of IP Addresses Networking Basics Use of IP Addresses Getting to Know the Router Reset Button Reset button can be used in one of two waysFront Panel Overview Connecting the RouterUsing the Setup Wizard Using the Quick Installation or User GuideExample of a Typical Network Connection InstructionsConfiguring the Router SetupSecurity Status How to Access the Web-based UtilityAdministration Applications & GamingObtain an IP Automatically Setup Tab Basic SetupInternet Setup Internet Connection TypePPPoE Static IPRAS Heart Beat Signal Heart Beat SignalNetwork Setup Optional SettingsPacket a unit of data sent over a network Router IP Network Address Server Settings DhcpSetup Tab Ddns DynDNS.orgTZO.com MAC Clone Setup Tab MAC Address CloneStatic Routing Setup Tab Advanced RoutingAdvanced Routing Dynamic Routing14 Routing Table Entry List Filter MAC Address Security Tab FilterFilter IP Address Range Filter Port RangeConfiguring the Router Security Tab Filter VPN Passthrough Security Tab VPNApplications & Gaming Tab Port Range Forwarding Port Range ForwardingPort Range Forwarded Range Applications & Gaming Tab Port TriggeringPort Triggering Triggered RangeUPnP Forwarding Applications & Gaming Tab UPnP ForwardingEtherFast Cable/DSL Router with 4-Port Switch DMZ Applications & Gaming Tab DMZApplication Priority Applications & Gaming Tab QoSDevice Priority Ethernet Port PriorityEtherFast Cable/DSL Router with 4-Port Switch Remote Router Access Administration Tab ManagementRouter Access Local Router AccessConfiguring the Router Administration Tab Management Log Administration Tab LogFactory Defaults Administration Tab Factory DefaultsUpgrade Firmware Administration Tab Firmware UpgradeInformation Status Tab RouterLocal Network Status Tab Local NetworkNeed to set a static IP address on a PC Appendix a TroubleshootingCommon Problems and Solutions For Windows 98 and MillenniumFor Windows XP For WindowsWant to test my Internet connection EtherFast Cable/DSL Router with 4-Port Switch Am not able to access the Router’s Web-based Utility Setup Need to set up a server behind my Router Application Start and End Protocol IP Address EnabledCan’t get the Internet game, server, or application to work To start over, I need to set the Router to factory default For Microsoft Internet Explorer 5.0 or higherFor Netscape 4.7 or higher Need to upgrade the firmware Firmware upgrade failedMy DSL service’s PPPoE is always disconnecting Need to use port triggering Does the Router support IPX or AppleTalk? Frequently Asked QuestionsWhere is the Router installed on the network? Is IPSec Passthrough supported by the Router?If all else fails in the installation, what can I do? Does the Router support ICQ send file?How can I block corrupted FTP downloads? What is DMZ Hosting? Is the Router cross-platform compatible?Which modems are compatible with the Router? How do I get mIRC to work with the Router? How can I check whether I have static or Dhcp IP addresses?Appendix B Upgrading Firmware Figure B-1 Upgrade FirmwareWindows 2000 or XP Instructions Windows 98 or Me InstructionsFigure C-3 MAC Address/Physical Address For the Router’s Web-based UtilityAppendix D Windows Help Shared ResourcesNetwork Neighborhood/My Network Places Appendix E Glossary EtherFast Cable/DSL Router with 4-Port Switch Packet a unit of data sent over a network EtherFast Cable/DSL Router with 4-Port Switch EtherFast Cable/DSL Router with 4-Port Switch Ports Appendix F SpecificationsFour 10/100 RJ-45 Switched Ports Model BEFSR41 ver StandardsStorage Humidity Operating HumidityLimited Warranty Appendix G Warranty InformationFCC Statement Appendix H Regulatory InformationAppendix I Contact Information Need to contact Linksys?Information section in this Guide

BEFSR41 specifications

The Cisco Systems BEFSR41 is a versatile and robust broadband router that has gained popularity for its reliability and feature set, catering to both home users and small businesses. This device integrates an 802.3 Ethernet switch with a wide area network (WAN) port, allowing users to connect multiple local area network (LAN) devices to the internet simultaneously.

One of the standout features of the BEFSR41 is its ability to support up to four Ethernet ports, which facilitates easy connection for computers, printers, and other network devices. This multi-port functionality promotes efficient resource sharing within a network, enabling users to share files, printers, and Internet access seamlessly. The router operates using a robust NAT (Network Address Translation) technology, which enhances network security by ensuring that local IP addresses are not exposed directly to the internet.

The BEFSR41 supports DHCP (Dynamic Host Configuration Protocol), allowing for automatic IP address assignment to connected devices, which simplifies the network setup for users. Furthermore, its built-in firewall features help protect against unauthorized access and potential threats from the internet, making it an ideal choice for small office or home office settings. The router also supports port forwarding, allowing users to configure access for specific applications, such as online gaming or video conferencing.

In terms of connectivity, the BEFSR41 is designed for high-speed broadband connections, making it suitable for DSL or cable internet services. The device offers a straightforward setup process, typically involving a web-based interface that simplifies configuration for users of all technical levels. The compact design and ease of installation make it a convenient choice for those looking to enhance their home or office network.

Additionally, the BEFSR41 supports basic Quality of Service (QoS) features, which enable prioritization of traffic for applications that require higher bandwidth or lower latency. Users can configure these settings to ensure that critical applications receive the necessary resources, promoting a smoother experience during activities like streaming or video calls.

Lastly, the Cisco BEFSR41 is known for its durability and longevity, reflecting the high standards associated with Cisco products. Although newer models and technologies have emerged since its launch, the BEFSR41 remains a solid option for users seeking a reliable and efficient router for basic networking needs. Whether for a small business or a home network, this device offers the essential features and functionality to support daily internet activities.