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CCNA Security
Official Exam Certification Guide
Michael Watkins
Kevin Wallace, CCIE No. 7945
Cisco Press
800 East 96th Street
Indianapolis, IN 46240 USA
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CCNA Security Official Exam Certification Guide
Michael Watkins
Kevin Wallace, CCIE No. 7945
Copyright© 2008 Cisco Systems, Inc.
Published by:
Cisco Press
800 East 96th Street
Indianapolis, IN 46240 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
First Printing June 2008
Library of Congress Cataloging-in-Publication data is on file.
ISBN-13: 978-1-58720-220-9
ISBN-10: 1-58720-220-4
Warning and Disclaimer
This book is designed to provide the information necessary to be successful on the Cisco IINS (640-553) exam. Every
effort has been made to make this book as complete and 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
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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.
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ized. Cisco Press or Cisco Systems, Inc., cannot attest to the accuracy of this information. Use of a term in this book
should not be regarded as affecting the validity of any trademark or service mark.
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Publisher:
Paul Boger
Associate Publisher:
Dave Dusthimer
Executive Editor:
Brett Bartow
Managing Editor:
Patrick Kanouse
Development Editor:
Andrew Cupp
Senior Project Editor:
Tonya Simpson
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Copy Editor:
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Technical Editors:
Ryan Lindfield and Anthony Sequeira
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About the Authors
Michael Watkins,
CCNA/CCNP/CCVP/CCSP, is a full-time senior technical instructor
with SkillSoft Corporation. With 13 years of network management, training, and consulting
experience, he has worked with organizations such as Kraft Foods, Johnson and Johnson,
Raytheon, and the U.S. Air Force to help them implement and learn about the latest network
technologies. In addition to holding more than 20 industry certifications in the areas of
networking and programming technologies, he holds a bachelor of arts degree from Wabash
College.
Kevin Wallace,
CCIE No. 7945, is a certified Cisco instructor working full time for
SkillSoft, where he teaches courses in the Cisco CCSP, CCVP, and CCNP tracks. With 19
years of Cisco networking experience, he has been a network design specialist for the Walt
Disney World Resort and a network manager for Eastern Kentucky University. He holds
a bachelor of science degree in electrical engineering from the University of Kentucky.
He is also a CCVP, CCSP, CCNP, and CCDP, with multiple Cisco security and IP
communications specializations.
About the Technical Reviewers
Ryan Lindfield
is an instructor and network administrator with Boson. He has more than
ten years of network administration experience. He has taught many courses designed for
CCNA, CCNP, and CCSP preparation, among others. He has written many practice exams
and study guides for various networking technologies. He also works as a consultant, where
among his tasks are installing and configuring Cisco routers, switches, VPNs, IDSs, and
firewalls.
Anthony Sequeira,
CCIE No. 15626, completed the CCIE in Routing and Switching in
January 2006. He is currently pursuing the CCIE in Security. For the past 15 years, he has
written and lectured to massive audiences about the latest in networking technologies. He
is currently a senior technical instructor and certified Cisco Systems instructor for SkillSoft.
He lives with his wife and daughter in Florida. When he is not reading about the latest Cisco
innovations, he is exploring the Florida skies in a Cessna.
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Dedications
For their support and encouragement throughout this process, I dedicate my contribution to
this book to my family.
—Michael
I dedicate my contribution to this book to my best friend (and wife of 14 years), Vivian.
—Kevin
Acknowledgments
From Michael Watkins:
I want to thank the team at Cisco Press for their direction and support throughout the
writing process. For their support and encouragement throughout this process, I wish to
thank and acknowledge Tom Warrick and the instructor team at SkillSoft. I also wish to
thank Kevin Wallace, who brought his talent and experience to this project and was an
enormous help each step of the way.
Finally, I want to thank my family for their continued support through this project,
especially my children, Abigail, Matthew, and Addison, who are always an inspiration in
all that I do.
From Kevin Wallace:
I wish to express my sincere thanks to the team at Cisco Press. You guys are a class act, and
I’m honored to be associated with you. Also, I give a huge thank-you to Michael Watkins
for inviting me to participate in writing this book.
On a personal note, I know all the good things in my life come from above, and I thank God
for those blessings. Also, my wife, Vivian, and my daughters, Sabrina and Stacie, have
become accustomed to seeing me attached to my laptop over the past few months. Thank
you for your love and support throughout this process.

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