Copyright

Copyright 2002 Cisco Systems, Inc.

Cisco Press logo is a trademark of Cisco Systems, Inc.

Published by:

Cisco Press

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Indianapolis, IN 46290 USA

All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without written permission from the publisher, except for the inclusion of brief quotations in a review.

Printed in the United States of America 1 2 3 4 5 6 7 8 9 0

Library of Congress Cataloging-in-Publication Number: 2001086621

Warning and Disclaimer

This book is designed to provide information about configuring Cisco routers while in the field. Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied .

The information is provided on an "as is" basis. The authors, Cisco Press, and Cisco Systems, Inc. shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the discs or programs that may accompany it.

The opinions expressed in this book belong to the authors and are not necessarily those of Cisco Systems, Inc.

Trademark Acknowledgments

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Credits

Publisher

John Wait

Editor-In-Chief

John Kane

Cisco Systems Program Manager

Michael Hackert

Executive Editor

Brett Bartow

Managing Editor

Patrick Kanouse

Development Editor

Christopher Cleveland

Project Editor

Marc Fowler

Copy Editor

Gayle Johnson

Technical Editor(s)

Steve Kalman

Alexander Marhold

Kevin Turek

Team Coordinator

Tammi Ross

Book Designer

Gina Rexrode

Cover Designer

Louisa Klucznik

Production Team

Scan Communications

Indexer

Tim Wright

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Copyright 2002, Cisco Systems, Inc. All rights reserved. Access Registrar, AccessPath, Are You Ready, ATM Director, Browse with Me, CCDA, CCDE, CCDP, CCIE, CCNA, CCNP, CCSI, CD-PAC, CiscoLink, the Cisco Net Works logo, the Cisco Powered Network logo, Cisco Systems Networking Academy, Fast Step, FireRunner, Follow Me Browsing, FormShare, GigaStack, IGX, Intelligence in the Optical Core , Internet Quotient, IP/VC, iQ Breakthrough, iQ Expertise, iQ FastTrack, iQuick Study, iQ Readiness Scorecard, The iQ Logo, Kernel Proxy, MGX, Natural Network Viewer, Network Registrar, the Networkers logo, Packet, PIX, Point and Click Internetworking, Policy Builder, RateMUX, ReyMaster, ReyView, ScriptShare, Secure Script, Shop with Me, SlideCast, SMARTnet, SVX, TrafficDirector, TransPath, VlanDirector, Voice LAN, Wavelength Router, Workgroup Director, and Workgroup Stack are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, Empowering the Internet Generation, are service marks of Cisco Systems, Inc.; and Aironet, ASIST, BPX, Catalyst, Cisco, the Cisco Certified Internetwork Expert Logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Collision Free, Enterprise/Solver, EtherChannel, EtherSwitch, FastHub, FastLink, FastPAD, IOS, IP/TV, IPX, LightStream, LightSwitch, MICA, NetRanger, Post-Routing, Pre-Routing, Registrar, StrataView Plus, Stratm, SwitchProbe, TeleRouter, are registered trademarks of Cisco Systems, Inc. or its affiliates in the U.S. and certain other countries.

All other brands, names , or trademarks mentioned in this document or Web site are the property of their respective owners . The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0010R)

Dedications

Dave Hucaby: This book is dedicated to my wife, Marci, and my daughters, Lauren and Kara. I am blessed to have three wonderful girls in the house; their love, encouragement, and support carry me along. God is good!

Steve McQuerry: I would like to dedicate this work to my beautiful wife and love of my life, Becky. Also, to my wonderful children, Katie, Logan, and Cameron. You are all my inspiration. Your patience, love, and support give me the courage and strength needed to spend the required time and energy on a project like this. Even through the long hours, I want you to know I love you all very much.