Copyright

Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and we were aware of a trademark claim, the designations have been printed in initial capital letters or in all capitals.

The programs and applications presented in this book have been included for their instructional value. They have been tested with care, but are not guaranteed for any particular purpose. The publisher does not offer any warranties or representations, nor does it accept any liabilities with respect to the programs or applications.

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Library of Congress Cataloging-in-Publication Data

(Revised for vol. 2)

Stevens, W. Richard.
   TCP/IP illustrated.

   (Addison-Wesley professional computing series)
   Vol. 2 by Gary R. Wright, W. Richard Stevens.
   Includes bibliographical references and indexes.
   Contents: v. 1. The protocols – v.2. The
implementation
   1. TCP/IP (Computer network protocol) I Wright,
Gary R..,        II. Title.       III. Series.
TK5105.55.S74   1994            004.6’2 93–40000
ISBN 0-201-63346-9 (v.l)
ISBN 0-201-63354-X (v.2)

The BSD Daemon used on the cover of this book is reproduced with the permission of Marshall Kirk McKusick.

Copyright © 1995 by Addison-Wesley.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, electronic, mechanical, photocopying, recording, or other-wise, without the prior consent of the publisher. Printed in the United States of America. Published simultaneously in Canada.

Text printed on recycled and acid-free paper.

23 2425262728  CRW  09 08 07

23rd Printing      January 2008

Dedication

To my parents and my sister, for their love and support.

—G.R.W.

To my parents, for the gift of an education, and the example of a work ethic.

—W.R.S.