Amazon.com
TCP/IP Illustrated, Volume 1: The Protocols is an excellent text that provides encyclopedic coverage of the TCP/IP protocol suite. What sets this book apart from others on this subject is the fact that the author supplements all of the discussion with data collected via diagnostic programs; thus, it is possible to "watch" the protocols in action in a real situation. Also, the diagnostic tools involved are publicly available; the reader has the opportunity to play along at home. This offers the reader an unparalleled opportunity to really get a feel for the behavior of the protocols in day-to-day operation. TCP/IP Illustrated, Volume 1: The Protocols features clear discussions and well-designed figures.
Volume two of this series, TCP/IP Illustrated, Volume 2: The Implementation, covers the implementation of TCP/IP. Volume three explores TCP for Transactions, HTTP, NNTP, and the Unix Domain Protocols./p>
Reviews From AMAZON.COM
This is THE book to understand IP
Want to really understand TCP/IP, this is the best text. Hands down.
Classic work - but in series need of updates as time goes on
I cannot fathom a guess as to how many times the books in this series have saved my in project work over the years. The only drawback with this series is that some publisher should endeavor to keep them up to date. Serious Unix system programmers must have copies of the complete series.

ISBN:0201633469