A classful
distance vector routing
protocol that uses ticks and hop count as its metric. RIP was based on a
Xerox protocol named
GWINFO and a later modification called
routed (pronounced "route-dee") was included with
BSD in
1982. RIP is an
IGP, so it routes in a single
autonomous system.
RIP 2 allows more info to be included in the packets and has a simple authentication mechanism.
RFC 1723 updates RFC 1058.