- 2 versions, distance-vector
- v1 - classful, fixed length subnet masks
- v2 - classless, vlsm
- metric - hop count (15 max)
- updates sent every 30 seconds with entire routing table
- operates on UDP 520
- hop count - 1 = directly connected, 16 = unreachable
- uses split-horizon with poison reverse and triggered updates
- split-horizon enabled by default. should disable in hub/spoke network, unless sub-interface used
- v2 summarizes networks automatically. ip summary-address takes precedence over auto-sum
- v2 updates are sent via multicast address 224.0.0.9
- by default, when router rip is configured on a router, it only sends v1 info, but listens to both v1 and v2
RIP
Posted by aun
on May 18, 2008
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