Security in the TCP/IP Suite

To understand security issues regarding the TCP/IP protocol suite, you first need to understand how TCP/IP works. This section will explore how TCP/IP works before going on to explore how the protocol suite can be used in attacks against a network.

Overview of TCP/IP

TCP/IP was originally developed by the U.S. Defense Advanced Research Projects Agency (DARPA) to interconnect Department of Defense (DoD) computers. The objective of the DARPA project was to build a robust communications protocol able to recover automatically from any node or communications failure. This reliability and recovery from node failure, which was necessitated by the fact that communications needed to be maintained under battlefield conditions, ...

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