December 2000
Intermediate to advanced
800 pages
22h 41m
English
Content preview from Special Edition Using Linux®, Sixth Edition
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IP
The Internet Protocol, or IP, is a very basic form of message addressing. At its heart, IP is nothing more than an envelope in which another packet (normally a TCP or UDP packet) travels to arrive at its destination.
Think of the IP as the envelope that you use when sending a letter. A letter has a recipient address and a sender or return address. IP packets contain this same information and a little more. The IP packet is basically just a header stuck on another (usually TCP) packet with a destination and source address. It also contains a checksum, an option field, and a few other fields. The exact format and contents can be found in RFC 791, available from http://www.rfc-editor.org/rfc.html.
When you want to send a letter to Barney ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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