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The most popular of the TCP/IP interior routing protocols is the Routing Information Protocol (RIP). The simplicity of the name matches the simplicity of the protocol. Of all the routing protocols, RIP is one of the easiest to configure and least demanding of resources. Its popularity is due both to this simplicity and its long history. In fact, support for RIP has been built into operating systems for as long as TCP/IP itself has existed.

There are three versions of RIP: RIP versions 1 and 2 for IP version 4 (IPv4) and RIPng for IP version 6 (IPv6). The basic operation of the protocol ...

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