Linksys BEFSRU31, BEFSR41 manual Instant Broadband Series

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Instant BroadbandSeries

Full Duplex - The ability of a device or line to transmit data simultaneously in both directions.

Gateway – A device that interconnects networks with different, incompatible communications protocols.

Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a time.

Hardware - Hardware is the physical aspect of computers, telecommunica- tions, and other information technology devices. The term arose as a way to dis- tinguish the “box” and the electronic circuitry and components of a computer from the program you put in it to make it do things. The program came to be known as the software.

Hub - The device that serves as the central location for attaching wires from workstations. Can be passive, where there is no amplification of the signals; or active, where the hubs are used like repeaters to provide an extension of the cable that connects to a workstation.

IEEE - The Institute of Electrical and Electronics Engineers. The IEEE describes itself as “the world's largest technical professional society—promot- ing the development and application of electrotechnology and allied sciences for the benefit of humanity, the advancement of the profession, and the well- being of our members.”

The IEEE fosters the development of standards that often become national and international standards. The organization publishes a number of journals, has many local chapters, and has several large societies in special areas, such as the IEEE Computer Society.

IP Address - In the most widely installed level of the Internet Protocol (Internet Protocol) today, an IP address is a 32-binary digit number that identi- fies each sender or receiver of information that is sent in packets across the Internet. When you request an HTML page or send e-mail, the Internet Protocol part of TCP/IP includes your IP address in the message (actually, in each of the packets if more than one is required) and sends it to the IP address that is obtained by looking up the domain name in the Uniform Resource Locator you requested or in the e-mail address you're sending a note to. At the other end, the recipient can see the IP address of the Web page requestor or the e-mail sender and can respond by sending another message using the IP address it received.

EtherFast® Cable/DSL Routers

IPCONFIG - A utility that provides for querying, defining and managing IP addresses within a network. A commonly used utility, under Windows NT and 2000, for configuring networks with static IP addresses.

IPSec - IPSec (Internet Protocol Security) is a developing standard for securi- ty at the network or packet processing layer of network communication. A big advantage of IPSec is that security arrangements can be handled without requiring changes to individual user computers.

IRQ (Interrupt ReQuest) - A hardware interrupt on a PC. There are 16 IRQ lines used to signal the CPU that a peripheral event has started or terminated. Except for PCI devices, two devices cannot use the same line.

ISP - An ISP (Internet service provider) is a company that provides individuals and companies access to the Internet and other related services such as website building and virtual hosting.

LAN - A local area network (LAN) is a group of computers and associated devices that share a common communications line and typically share the resources of a single processor or server within a small geographic area (for example, within an office building).

Latency - The time delay between when the first bit of a packet is received and the last bit is forwarded.

MAC Address - The MAC (Media Access Control) address is a unique num- ber assigned by the manufacturer to any Ethernet networking device, such as a network adapter, that allows the network to identify it at the hardware level.

Mbps (MegaBits Per Second) - One million bits per second; unit of measure- ment for data transmission.

mIRC - mIRC runs under Windows and provides a graphical interface for log- ging onto IRC servers and listing, joining, and leaving channels.

Motherboard - A motherboard is the physical arrangement in a computer that contains the computer’s basic circuitry and components.

NAT - NAT (Network Address Translation) is the translation of an Internet Protocol address (IP address) used within one network to a different IP address known within another network. One network is designated the inside network and the other is the outside.

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Contents EtherFast Cable/DSL Routers Copyright & Trademarks Table of Contents Introduction FeaturesPackage Contents for the 4-Port Router BEFSR41 One Linksys EtherFast Cable/DSL RouterPackage Contents for the 1-Port Router BEFSR11 Package Contents for the 3-Port Router BEFSRU314-Port Router’s Rear Panel LAN IndicatorsGetting to Know the 4-Port EtherFast Cable/DSL Router Port Router’s Front Panel LEDsOne-Port Router’s Ports Getting to Know the 1-Port EtherFast Cable/DSL RouterOne-Port Router’s Rear Panel WAN Indicators Port 1-Port Router’s Front Panel LEDsGetting to Know the 3-Port EtherFast Cable/DSL Router 3-Port Router’s Rear Panel PortsButtons 3-Port Router’s Front Panel LEDsWhat’s an IP Address? OverviewIP Addressing a Quick Lesson LANs and WANsDynamic IP Addresses Dhcp Dynamic Host Configuration Protocol ServersConnecting Your Hardware Together and Booting Up Uplinking Connecting More Devices to Your Router Technical CheckpointInstalling the BEFSRU31’s USB Port Drivers Installing the Windows 98 DriverInstant Broadband Series Installing the Windows 2000 Driver Instant Broadband Series Installing the Windows Millennium Driver Installing the Windows XP Driver Configuring Your Network with the Cable/DSL Router Configuring PCs to Connect to the Cable/DSL RouterConfiguring the Cable/DSL Router Quick & Easy Router Administration Cable/DSL Router’s Web- based UtilitySetup Password Status StatusDhcp LogSecurity ZoneAlarm Pro SettingsPC-cillin Settings Software DownloadHelp Dynamic RoutingIP Filtering Using Port Triggering Using Remote UpgradeUsing MTU Maximum Transmission Unit IP ForwardingDynamic Routing Static Routing StaticDMZ Hosting MAC Address Clone TroubleshootingCommon Problems and Solutions Frequently Asked Questions When I enter a URL or IP address, I get a time out errorCan’t access my e-mail or the Internet Can’t obtain an IP address from my cable or DSL modemInstant Broadband Series Glossary Instant Broadband Series Instant Broadband Series Instant Broadband Series Instant Broadband Series Instant Broadband Series Instant Broadband Series Step One Pinging an IP Address How to Ping Your ISP’s E-mail & Web AddressesAppendix Installing the TCP/IP Protocol Step Two Pinging for a Web AddressTCP/IP Installation is now complete Twisted-Pair CablingCrimping Your Own Network Cables Port Router SpecificationsPort Environmental Specifications Straight-Through Cabling Cross-Over CablingBEFSR11 Customer Support Copyright 2002 Linksys, All Rights Reserved