October 2005
Intermediate to advanced
1648 pages
47h 34m
English
Content preview from TCP/IP Guide
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Chapter 33. ICMPV4 INFORMATIONAL MESSAGE TYPES AND FORMATS
The five Internet Control Message Protocol (ICMP) error message types we examined in the previous chapter communicate important information about error or problem conditions encountered during the operation of an Internet Protocol (IP) internetwork. In contrast, the other class of ICMP messages contains those messages that are informational. They are not sent in response to some issue with a regular IP datagram, but are used on their own to implement various support functions for IP. Informational messages are used for testing and diagnostic purposes, as well as for allowing devices to ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.