Broadband Router with 2 Phone Ports

Figure 5-18: Administration Tab - Management

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Figure 5-19: Administration Tab - Log

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Figure 5-20: Administration Tab - Diagnostics

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Figure 5-21: Ping Test

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Figure 5-22: Traceroute Test

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Figure 5-23: Administration Tab - Factory Defaults

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Figure 5-24: Administration Tab - Backup and Restore

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Figure 5-25: Administration Tab - Reboot

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Figure 5-26: Status Tab - Router

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Figure 5-27: Status Tab - Local Network

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Figure 5-28: DHCP Clients Table

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Figure 5-29: Status Tab - Voice

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Figure 6-1: Website for AT&T CallVantage Service

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Figure B-1: IP Configuration Screen

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Figure B-2: MAC Address/Adapter Address

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Figure B-3: MAC Address/Physical Address

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Figure B-4: Access Restrictions - MAC and IP Addresses

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Figure B-5: MAC Address Clone

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Chapter 1: Introduction

Welcome

Broadband Router with 2 Phone Ports

Chapter 1: Introduction

Welcome

Thank you for choosing the Broadband Router with 2 Phone Ports. This Router will allow your computers to share

a high-speed Internet connection as well as resources, including files and printers. And after you have set up

your Internet phone service, you will be able to make phone or fax calls using your Internet connection.

How does the Router do all of this? By connecting your computers and peripherals, including phones or fax

machines, to the Router and connecting the Router to your cable or DSL modem, then the Router can direct and

control communications for your network.

But what does all of this mean?

Networks are useful tools for sharing Internet access and computer resources. Multiple computers can share

Internet access, so you don’t need more than one high-speed Internet connection. With Internet phone service,

your Internet access can now be shared by your phones or fax machines as well. You will be able to make phone

calls using the account you set up with AT&T, even while you’re surfing the Internet. Plus, you can access one

printer from different computers and access data located on another computer’s hard drive. Networks are even

used for playing multiplayer video games. So, networks not only are useful in homes and offices, but also can be

fun.

PCs on a wired network create a LAN, or Local Area Network. They are connected with Ethernet cables, which is

why the network is called “wired”.

To create your network, install and set up the Router. To guide you through the process, Linksys strongly

recommends that you run the Setup Wizard on the Setup CD-ROM. If you prefer to manually set up the Router, use

the instructions in the Quick Installation or this User Guide to help you. These instructions should be all you need

to get the most out of the Router.

ethernet:

an IEEE standard network protocol

that specifies how data is placed on and

retrieved from a common transmission

medium.

lan

(local area network): the computers and

networking products that make up the network

in your home or office.

NOTE:

If you want to sign up for Internet phone service or activate your account, visit

after you have installed and configured the Router. Refer to

“Chapter 6: Signing up for AT&T CallVantage

sm

Service” for more information.

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Chapter 1: Introduction

What’s in this Guide?

Broadband Router with 2 Phone Ports

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 Router to your cable or DSL modem and PCs. After you

create your network, then you will connect the telephones (or fax machines) to AT&T CallVantage

sm

Service

via the Router.

•

Chapter 5: Configuring the Router

This chapter explains how to configure the Router using your web browser and the Router’s Web-based

Utility. You will configure the Router using the settings provided by your ISP.

•

Chapter 6: Signing up for AT&T CallVantage

sm

Service

When you are ready to sign up for or activate your AT&T CallVantage Service account, refer to the instructions

in this chapter.

When you’re finished with the basic steps, then you are ready to connect to the Internet.

You also have other chapter available for reference:

•

Chapter 1: Introduction

This chapter describes the Router’s applications and this User Guide.

•

Chapter 2: Networking Basics

This chapter briefly explains how a network functions.

•

Appendix A: Troubleshooting

This appendix describes some possible problems and solutions, as well as frequently asked questions,

regarding installation and use of the Router.

•

Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter

This appendix instructs you on how to find the MAC address or Ethernet address of your PC’s Ethernet

network adapter.

•

Appendix C: Windows Help

This appendix describes how you can use Windows Help for instructions about networking, such as installing

the TCP/IP protocol.

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Chapter 1: Introduction

What’s in this Guide?

Broadband Router with 2 Phone Ports

•

Appendix D: Glossary

This appendix gives a brief glossary of terms frequently used in networking.

•

Appendix E: Specifications

This appendix provides the technical specifications for the Router.

•

Appendix F: Warranty Information

This appendix supplies the warranty information for the Router.

•

Appendix G: Regulatory Information

This appendix supplies the regulatory information regarding the Router.

•

Appendix H: Contact Information

This appendix provides contact information for a variety of Linksys resources, including Technical Support.

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Chapter 2: Networking Basics

An Introduction to Local Area Networks

Broadband Router with 2 Phone Ports

Chapter 2: Networking Basics

An Introduction to Local Area Networks

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

cannot “see” your PCs. This is how your LAN remains private. The Router protects your network by inspecting the

first packet coming in through the Internet port before delivery to the final destination on one of the Ethernet

ports. The Router inspects Internet port services like the web server, ftp server, or other Internet applications,

and, if allowed, it will forward the packet to the appropriate PC on the LAN side.

The Use of IP Addresses

IP stands for Internet Protocol. Every device in an IP-based network, including PCs, print servers, and routers,

requires an IP address to identify its location, or address, on the network. This applies to both the Internet and

LAN connections.

There are two ways of assigning IP addresses to your network devices.

A static IP address is a fixed IP address that you assign manually to a PC or other device on the network. Since a

static IP address remains valid until you disable it, static IP addressing ensures that the device assigned it will

always have that same IP address until you change it. Static IP addresses are commonly used with network

devices such as server PCs or print servers.

If you use the Router to share your cable or DSL Internet connection, contact your ISP to find out if they have

assigned a static IP address to your account. If so, you will need that static IP address when configuring the

Router. You can get the information from your ISP.

A dynamic IP address is automatically assigned to a device on the network. These IP addresses are called

dynamic because they are only temporarily assigned to the PC or other 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.

dynamic ip address

: a temporary IP

address assigned by a DHCP server.

static ip address

: a fixed address

assigned to a computer or device that

is connected to a network.

nat

(network address translation): NAT

technology translates IP addresses of a

local area network to a different IP

address for the Internet.

dhcp

(dynamic host configuration

protocol): a protocol that lets one

device on a local network, known as a

DHCP server, assign temporary IP

addresses to the other network

devices, typically computers.

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