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The TCP/IP Guide  9  TCP/IP Lower-Layer (Interface, Internet and Transport) Protocols (OSI Layers 2, 3 and 4)       9  TCP/IP Internet Layer (OSI Network Layer) Protocols            9  TCP/IP Routing Protocols (Gateway Protocols)                 9  TCP/IP Interior Routing Protocols (RIP, OSPF, GGP, HELLO, IGRP, EIGRP)                      9  TCP/IP Routing Information Protocol (RIP, RIP-2 and RIPng)                           9  RIP Version-Specific Message Formats and Features

RIP Version-Specific Message Formats and Features 1 2 3 RIP Version 2 (RIP-2) Message Format and Features

RIP-1 Version-Specific Features

Since RIP version 1 was the first version of the protocol, its features formed the basis for future RIP versions; it doesn't really have any version-specific features. What RIP-1 has is a number of limitations, such as a lack of support for specifying classless addresses and no means for authentication. RIP version 2 was created to address some of RIP-1 shortcomings. As we will see in the next topic, RIP-2's features put to good use those “Must Be Zero” bytes in the RIP-1 format.

RIP Version-Specific Message Formats and Features 1 2 3 RIP Version 2 (RIP-2) Message Format and Features