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All of the operational procedures, timers,
and stability functions of RIP v1 remain the same in RIP v2, with
the exception of the broadcast updates. RIP v2 updates to
other RIP v2 inter-routers by multicasting. This occurs by using the reserved
Class D address
224.0.0.9. The advantage of multicasting is that devices on the local
network that are not concerned with RIP routing do not have to spend
time unwrapping broadcast packets from the router. The multicast
updates are examined further in the section, Compatibility with
RIP v1. After a look at how the RIP message format accommodates the
version 2 extensions, this section focuses on the operation and
benefits of these additional features.
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