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CCNA Portable Command Guide
Second Edition

Scott Empson

Cisco Press
800 East 96th Street
Indianapolis, Indiana 46240 USA

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CCNA Portable Command Guide, Second Edition
Scott Empson
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 anyform 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 July 2007
Library of Congress Cataloging-in-Publication Data
Empson, Scott.
Portable commandreference / Scott Empson. -- 2nd ed.
p. cm.
ISBN 978-1-58720-193-6 (pbk.)
1. Computer networks--Examinations--Study guides. 2. Internetworking
(Telecommunication)--Examinations--Study guides. 3. Electronic data
processing personnel--Certification. I. Title.
TK5105.5.E4352 2007
004.6--dc22
2007023863
ISBN-13: 978-1-5872-0193-6
ISBN-10: 1-58720-193-3

Warning and Disclaimer
This book isdesigned to provide information about the Certified Cisco Networking
Associate (CCNA) exam and the commands needed at this level of network administration.
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 author, Cisco Press, and Cisco
Systems, Inc. shall have neitherliability nor responsibility to any person or entity with
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the use of the discs or programs that may accompany it.
The opinions expressed in this book belong to the author and are not necessarily those of
Cisco Systems, Inc.

Trademark Acknowledgments
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been appropriately capitalized. 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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About the Author
Scott Empson is...