Linksys BEFDSR41W manual Dynamic IP Addresses, Network Setup Overview

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Instant Broadband™ Series

Dynamic IP Addresses

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” because they are only temporarily assigned to the PC or device. After a certain time period, they expire and may change. If a PC logs onto the network (or the Internet) and its dynamic IP address has expired, the DHCP server will assign it a new dynamic IP address.

For ADSL users, many ISPs may require you to log on with a user name and password to gain access to the Internet. This is a dedicated, high-speed con- nection type called Point to Point Protocol over Ethernet (PPPoE). PPPoE is similar to a dial-up connection, but PPPoE does not dial a phone number when establishing a connection. PPPoE also will provide the Gateway with a dynam- ic IP address to establish a connection to the Internet. Point to Point Protocol over ATM, or PPPoA, is a similar login method also used for some ADSL con- nections.

DHCP (Dynamic Host Configuration Protocol) Servers

DHCP frees you from having to assign IP addresses manually every time a new user is added to your network. PCs and other network devices using dynamic IP addressing are assigned a new IP address by a DHCP server. The PC or net- work device obtaining an IP address is called the DHCP client. By default, the Gateway’s WAN setting is DHCP client.

A DHCP server can either be a designated PC on the network or another net- work device, such as the Gateway. By default, a DHCP server (LAN side) is enabled on the Gateway. If you already have a DHCP server running on your network, you must disable one of the two DHCP servers. If you run more than one DHCP server on your network, you will experience network errors, such as conflicting IP addresses. To disable DHCP on the Gateway, see the DHCP sec- tion in “Chapter 6: Using the Gateway’s Web-based Utility.”

Note: Even if you assign a static IP address to a PC, other PCs can still use DHCP’s dynamic IP addressing, as long as the static IP address is not within the DHCP range of the LAN IP Address.

If the dynamic IP addressing fails to provide a dynamic IP address, refer to “Appendix A: Troubleshooting.”

ADSL Gateway with Modem / Router / 4-Port Switch / Wireless-Ready

Network Setup Overview

This user guide covers the basic steps for setting up a network with a Gateway. After going through the “Getting to Know the Gateway” chapter, most users will only need to use the following chapters:

•Chapter 3: Connecting the Gateway

This chapter instructs you on how to connect the ADSL line to the Gateway and connect the PC(s) to the Gateway.

•Chapter 4: Configuring the PCs

This chapter instructs you on how to configure your PC(s) for a DHCP con- nection, if the network settings are not already set to DHCP.

•Chapter 5: Configuring the Gateway

This chapter explains how to configure the Gateway using your web browser and the Gateway’s web-based utility. You will configure the Gateway using the settings provided by your ISP.

When you’re finished with the basic steps, then you are ready to connect to the Internet. After the PC(s) can access the Internet through the Gateway, you can alter the Gateway’s settings further; for example, you can adjust security fea- tures and other settings to enable online gaming, run Internet servers, config- ure a wireless LAN (WPC11 required) and more!

Notebook with

Ethernet Adapter

WAN

LAN

ADSL Gateway

PC with

Ethernet Adapter

with Modem / Router / 4-Port

Switch / Wireless-Ready

4

5

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Contents Adsl Gateway Copyright & Trademarks UG-BEFDSR41W-071802NC-BW Table of Contents Introduction FeaturesIP Addresses Package ContentsMinimum Requirements An Introduction to LANs and WANsDynamic IP Addresses Network Setup OverviewGateway’s Back Panel Ports Getting to Know the Adsl GatewayGateway’s Front Panel LEDs Proceed to Connecting the Gateway Connecting the GatewayConnecting Your Hardware and Booting Up Go to Configuring the PCs Overview Configuring the PCsWindows 95, Windows 98, Windows Millennium Windows Go to Configuring the GatewayWindows XP Configuring the Gateway Configuring the GatewayDynamic IP Address RFC 1483 BridgedRFC 2516 PPPoE or RFC 2364 PPPoA Enter the Default Gateway AddressQuick and Easy Gateway Administration Using the Gateway’s Web-based UtilitySetup RFC 1483 Bridged RFC 1483 Routed RFC 2516 PPPoE Password Status Dhcp UPnP LogHelp Wireless Advanced Setting Up FiltersFiltering Forwarding RIP Direction Dynamic RoutingStatic Routing RIP VersionDMZ IP Address Enter the IP Address that is assigned to DMZ HostLink Test FirewallCommon Problems and Solutions Appendix a TroubleshootingFrequently Asked Questions Tion of the Gateway Figure B-1 Appendix B Configuring Wireless SecurityFigure B-3 Click on the Network Connections icon Configuring Wireless Security in Windows XPFigure B-7 Figure B-11 Appendix C Installing the T C P/ I P ProtocolFor Windows 95, 98, and Me TCP/IP installation is now completeFor Windows NT, 2000, and XP Figure D-3Standards Appendix E SpecificationsEnvironmental Appendix F Warranty InformationWeb site RMA Issues FaxAppendix G Contact Information Sales Information Technical Support
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BEFDSR41W specifications

The Linksys BEFDSR41W is a versatile and reliable wireless router designed primarily for small to medium-sized networks, providing high-performance capabilities and an array of advanced features. With its sleek design and user-friendly interface, it is an ideal choice for home users and small businesses looking to establish a robust and secure wireless environment.

One of the standout features of the BEFDSR41W is its dual wireless capability. It supports both 802.11b and 802.11g wireless standards, allowing users to connect a wide range of devices, from older equipment to newer, high-speed devices. This flexibility ensures compatibility across various platforms while delivering decent wireless speeds, making it perfect for basic web browsing, streaming, and online gaming.

The BEFDSR41W is equipped with a built-in firewall that includes Network Address Translation (NAT) and Stateful Packet Inspection (SPI) to provide robust security against external threats. This ensures that the users' personal data and network resources are safeguarded from unauthorized access. Additionally, it supports WPA2 encryption, which enhances wireless security by protecting sensitive information during transmission.

Another notable feature is its four Ethernet ports, allowing for wired connections to multiple devices, such as computers, printers, and gaming consoles. This is particularly beneficial for users who require stable connections for bandwidth-intensive applications. The router also supports DHCP, enabling automatic IP address assignment to connected devices, which simplifies network management.

The BEFDSR41W boasts an easy-to-navigate web interface for setup and management, facilitating quick configuration of wireless settings, security protocols, and other essential preferences. Furthermore, the router offers Quality of Service (QoS) capabilities, allowing users to prioritize specific types of traffic to ensure uninterrupted streaming and gaming experiences.

In summary, the Linksys BEFDSR41W is a dependable wireless router that combines essential features with a user-friendly approach. Its dual wireless standard support, built-in security measures, multiple Ethernet ports, and QoS capabilities make it an excellent choice for those looking to maintain an efficient and secure network. Whether for home use or small businesses, the BEFDSR41W stands out as a reliable networking solution in today's digital landscape.
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