C H A P T E R 1

Basic Router Configuration

This chapter provides procedures for configuring the basic parameters of your Cisco router, including global parameter settings, routing protocols, interfaces, and command-line access. It also describes the default configuration on startup. Note that individual router models may not support every feature described throughout this guide. Features not supported by a particular router are indicated whenever possible.

This chapter contains the following sections:

Interface Port Labels

Viewing the Default Configuration

Information Needed for Configuration

Configuring Basic Parameters

Configuring Static Routes

Configuring Dynamic Routes

Configuring Enhanced IGRP

Each section includes a configuration example and verification steps, as available.

For complete information on how to access global configuration mode, see the “Entering Global Configuration Mode” section in Appendix A, “Cisco IOS Basic Skills.” For more information on the commands used in the following tables, see the Cisco IOS Release 12.3 documentation set.

Interface Port Labels

Table 1-1lists the interfaces supported for each router and their associated port labels on the equipment.

 

 

Table 1-1

Supported Interfaces and Associated Port Labels by Cisco Router

 

 

 

 

 

 

 

 

 

Router

 

Interface

Port Label

 

 

 

 

 

 

 

 

 

Cisco 1801

 

Fast Ethernet LANs

SWITCH and FE8–FE5 (top), FE x and

 

 

 

 

 

FE4–FE1 (bottom)

 

 

 

 

 

 

 

 

 

 

 

Fast Ethernet WANs

FE0

 

 

 

 

 

 

 

 

 

 

 

ATM WAN

ADSLoPOTS

 

 

 

 

 

 

 

 

 

 

 

Wireless LAN

LEFT, RIGHT/PRIMARY

 

 

 

 

 

 

 

 

 

 

 

BRI

ISDN S/T

 

 

 

 

 

 

 

 

 

 

 

 

Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OL-6426-02

 

 

 

 

1-1

 

 

 

 

 

 

 

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Cisco Systems OL-6426-02 manual Basic Router Configuration, Interface Port Labels, Router Interface Port Label