IP History, Standards, Versions, and Closely Related Protocols

Since IP is really the architectural foundation for the entire TCP/IP protocol suite, you might have expected that it was created first, and that the other protocols were built upon it. That's usually how you build a structure, after all! The history of IP, however, is a bit more complex. The functions it performs were defined at the birth of the protocol, but IP itself didn't exist for the first few years that the protocol suite was being defined.

I explore the early days of TCP/IP in Chapter 8, which provides an overview of the suite as a whole. What is notable about the development of IP is that its functions were originally part of TCP. As a formal protocol, IP was born when an ...

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