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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How it works...
Layer 4 protocols, mostly TCP and UDP, are the protocols that connect between end applications. The end node on one side (for example, a web client) sends a message to the other side (for example, a web server), requesting to connect to it. The codes of the processes that send the request and the processes that receive the request are called port numbers. Further discussion on this issue is provided in Chapter 11, Transport Layer Protocol Analysis.
For both TCP and UDP, the port numbers indicate the application codes. The difference between them is that TCP is a connection-oriented, reliable protocol, while UDP is a connectionless, unreliable protocol. There is an additional layer 4 protocol called Stream Control Transmission ...
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