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RIP Version-Specific Message Formats and Features
The Routing Information Protocol
(RIP) has been in widespread use for over two decades. During that time,
internetworks and internetworking technologies have changed. To keep
up with the times, RIP has also evolved, and today has three different
versions. The basic operation of all three is fairly similar, and was
therefore described in the
common section on concepts and operation.
As you might expect, there are also some differences between the versions
(or we wouldn't need versions!) One of the more important of these is
the format used for RIP messages in each version, and the meaning and
use of the fields within that format.
In this section I describe the message
format used by each of the three versions of RIP, as well as certain
specific features not common to all versions. I begin with the original
RIP, also now known as RIP Version 1. I then describe the updated
version of RIP called RIP Version 2 or RIP-2. Finally,
I discuss RIPng, also sometimes called RIPv6, the version
of RIP used for IP version 6 (IPv6). (Note that this is not technically
a new version of the original RIP protocol but a new protocol closely
based on RIP versions 1 and 2.
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The TCP/IP Guide (http://www.TCPIPGuide.com)
Version 3.0 - Version Date: September 20, 2005
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