Introduction to Cisco Routers

Introduction

This guide is an introduction to Cisco routers. This is not meant to be comprehensive, but an introduction the basics of configuring, maintaining and for deeper information, look into the CCNA course. This guide assumes the use of a Cisco 877 / 877w router.

A Cisco router uses the IOS (Internetwork Operating System) as its CLI operating system. The IOS is used to configure and troubleshoot the router. Web based management (called the SDM) can be used, but is not covered in this document.

It is best to have a reasonable understanding of networking, and especially how IPv4 addressing works. For more information refer to the Network Fundamentals book from CCNA (Dye, McDonald, & Rufi, 2009).

Top topics:

• Change Management

• Introduction

• The Physical Router

• Ports

• Lights

• Connecting to the Router

• Terminal Emulation

• Telnet

• Basic Router Use

• Modes

• IOS Basics

• Basic Configuration

• Network Configuration

• Interfaces

• Routing, NATing, and Port Forwarding

• Access Lists

• Sample Router Config

• Troubleshooting and Testing

• Getting Information

• Debug Commands

• Password Reset

• Glossary

• Command list

• Works Cited