Network Security First-Step, Second Edition

Network Security First-Step

Tom ThomasDonald Stoddard

Copyright© 2012 Cisco Systems, Inc.

Published by:Cisco Press800 East 96th StreetIndianapolis, 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.

First Printing December 2011

Library of Congress Cataloging-in-Publication data is on file.

ISBN-13: 978-1-58720-410-4

ISBN-10: 1-58720-410-X

Warning and Disclaimer

This book is designed to provide information about network security. Every effort has been made to make ...