March 2018
Intermediate to advanced
626 pages
17h 32m
English
book
Network Analysis Using Wireshark 2 Cookbook - Second Edition
by Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss
Content preview from Network Analysis Using Wireshark 2 Cookbook - Second Edition
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Analyzing IP fragmentation failures
Fragmentation is a common mechanism in IP that takes a large IP packet and divides it into smaller packets that will fit in the Layer-2 Ethernet frames. When any router receives a packet that is larger than the Maximum Transmission Unit (MTU) of the outgoing interface, the packet will be fragmented. In most cases, there shouldn't be any problems with the mechanism, but there might be performance issues due to this mechanism. IP fragmentation may also be used as a source for a DoS attack.
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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.