TCP/IP Illustrated, Vol. 1: The Protocols

608 Pages·1994·216.634 MB·English

by  W. Richard Stevens

•
W.
Internet
•
AD< 3.2.2 Solaris 2.2 SunOS 4.1.1 .104.1
Cisco
aix solaris gemini gateway
router
- - - -
1'1.92 T.1.32 T.1.11 .1.4
Ethernet
.1.183
-
Telebit
netb
NetBlazer
lmodeml
SLIP (dialup)
JmodemJ
BSD/3861.0 BSD/3861.0 SunOS4.1.3 .1.29 SVR4
-
SLIP
slip bsdi sun svr4
.13.65 .13.66
- - -
T-13.35 .13.33 T-13.34
Ethernet
Portion of the class B network 140.252 used for all the examples in the text.
All the hosts are in the t uc. noao. edu domain.
IP Header
0 15 16 31
4-bit 14-bit headerl 8-bit type of service T
16-bit total length (in bytes)
version length (TOS)
3-bit
16-bit identification 13-bit fragment offset
flags
I
8-bit time to live
8-bit protocol 16-bit header checksum 20 bytes
(TTL)
I
1
32-bit source IP address
32-bit destination IP address
/ options (if any) 7
7 data l
UDP Header
0 15 16 31
T
16-bit source port number 16-bit destination port number
8 bytes
16-bit UDP length 16-bit UDP checksum j_
7 data (if any) l
TCP Header
0 15 16 31
16-bit source port number 16-bit destination port number T
32-bit sequence number
32-bit acknowledgment number 20 bytes
4-bit headerl reserved 1
16-bit window size
length (6 bits)
IMl~lllil!I!
16-bit TCP checksum 16-bit urgent pointer
7 options (if any) l
l
7 data (if any) l

TCP/IP Illustrated, Volume 1
Addison-Wesley Professional Computing Series
Brian W. Kernighan, Consulting Editor
Ken Arnold/John Peyton, A C User's Guide to ANSI C
Tom Cargill, C++ Programming Style
David A. Curry, UNIX® System Security: A Guide for Users and System Administrators
William R. Cheswick/Steven M. Bellovin, Firewalls and Internet Security: Repelling the Wily Hacker
Scott Meyers, Effective C++: 50 Specific Ways to Improve Your Programs and Designs
R9bert B. Murray, C++ Strategies and Tactics
John K. Ousterhout, Tel and the Tk Toolkit
Craig Partridge, Gigabit Networking
Radia Perlman, Interconnections: Bridges and Routers
David M. Piscitello/A. Lyman Chapin, Open Systems Networking: TCP/IP and OSI
Stephen A. Rago, UNIX® System V Network Programming
Curt Schimmel, UNIX® Systems for Modern Architectures: Symmetric Multiprocessing and
Caching for Kernel Programmers
W. Richard Stevens, Advanced Programming in the UNIX® Environment
W. Richard Stevens, TCP/IP Illustrated, Volume I: The Protocols
TCP/IP Illustrated, Volume 1
The Protocols
W. Richard Stevens
ADDISON-WESLEY PUBLISHING COMPANY
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Library of Congress Cataloging-in-Publication Data
Stevens, W. Richard
TCP/IP Illustrated: the protocols/W, Richard Stevens.
p. cm. - (Addison-Wesley professional computing series)
Includes bibliographical references and index.
ISBN 0-201-63346-9 (v. 1)
l.TCP/1.P (Computer network protocol) I. Title. II. Series.
TK5105.55S74 1994
004.6'2-dc20
Copyright © 1994 by Addison-Wesley Publishing Company
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
otherwise, without the prior consent of the publisher. Printed in the United States of America.
Published simultaneously in Canada.
ISBN 0-201-63346-9
Text printed on recycled paper.
3 4 5 6 7 8 9 CRW 97969594
Third printing May 1994
To Brian Kernighan and John Wait,
for their encouragement, faith, and support
over the past 5 years.
Praise for TCP/IP Illustrated, Volume 1: The Protocols
"Thi is sure to be the bible for TCP/IP developer and user . Within minute of picking up the text,
I encountered several scenario which had tripped-up both my colleagues and my elf in the pa t.
Stevens reveals many of the mysteries once held tightly by the ever-elusive networking gurus.
Having been involved in the implementation of TCP/IP for some year now, I con ider thi by far
the finest text to date."
- Robert A. Ciampa, Network Engineer, Synemetics, division of 3COM
"While all of Stevens' books are readable and technically excellent, this new opu i awe ome.
Although many books describe the TCP/IP protocols, Stevens provides a level of depth and real
world detail lacking from the competition. He puts the reader inside TCP/IP u ing a vi ual approach
and shows the protocols in action."
- Steven Baker, Networking Columnist, Unix Review
"TCP/IP Illustrated, Volume 1 is an excellent reference for developers, network administrators, or
anyone who needs to understand TCP/IP technology. TCP/IP Illustrated i comprehensive in its
coverage of TCP/IP topics, providing enough details to satisfy the experts while giving enough
background and commentary for the novice."
- Bob Williams, V.P. Marketing, NetManage, Inc.
" ... the difference is that Stevens wants to show as well as tell about the protocols. His principal
teaching tools are straight-forward explanations, exercises at the ends of chapters, byte-by-byte
diagrams of headers and the like, and listings of actual traffic as examples."
- Walter Zintz, UnixWorld
"Much better than theory only ... W. Richard Stevens takes a multihost-based configuration and uses
it as a travelogue of TCP/IP examples with illustrations. TCP/IP Illustrated, Volume 1 is based on
practical examples that reinforce the theory - distinguishing this book from others on the subject,
and making it both readable and informative."
- Peter M. Haverlock, Consultant, IBM TCP/IP Development
"The diagrams he uses are excellent and his writing style is clear and readable. In sum, Stevens has
made a complex topic easy to understand. This book merits everyone's attention. Please read it and
keep it on your bookshelf."
- Elizabeth Zinkann, Sys Admin
"W. Richard Stevens has produced a fine text and reference work. It is well organized and very
clearly written with, as the title suggests, many excellent illustrations exposing the intimate details
of the logic and operation of IP, TCP, and the supporting cast of protocols and applications."
- Scott Bradner, Consultant, Harvard University OIT/NSD