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The ABCs of TCP/IP
RIPv2
Recognizing some of the limitations associated with RIPv1, this routing protocol
was modified in 1994, resulting in the development of RIPv2. RIPv2 is back-
ward-compatible with RIPv1. It adds several important features that enhance
its capability. The additional features include a text password authentication
capability, the inclusion of subnet masks in its routing tables, and a route tag
that provides a mechanism for separating RIP routes from externally learned
routes. Exhibit 6 illustrates the RIPv2 packet format.
In comparing the fields in RIPv1 to RIPv2 packets, one notes the use of
several new fields in RIPv2, as discussed ...