Sams Teach Yourself Cisco Routers in 21 Days is an in-depth, straightforward tutorial. It covers configuring a router from the ground up, alerts the reader to the most common problems, and offers tested solutions when they are applicable.

Readers will learn how to:

install the IOS;
perform the initial configuration;
configure the router for protocols such as TCP/IP, IPX, RIP, and IGRP,
avoid common pitfalls working with routers.