Routing Information Protocol

Routing Information Protocol - Basics

Dynamic routing protocol
Administrative distance - 120
Metric for best path selection - Hop count (Route with lowest hop count preferred)
Maximum hop count allowed - 15
Route is considered unreachable for hop count - 16
RIP versions - RIP version 1, RIP version 2, RIP-NG

RIP version 1

Classful routing protocol i.e. doesn't send subnet mask information in the update messages
Sends periodic updates as broadcast
Destination IP address for broadcast - 255.255.255.255
Doesn't support authentication of update messages

RIP version 2

Classless routing protocol but does support classful
Sends periodic updates as multicast
Destination IP address for multicast - 224.0.0.9
Supports authentication of update messages

RIP-NG

Classless routing protocol (of course, this is IPv6 we are talking about)
Sends periodic updates as multicast
Destination IPv6 address for multicast - FF02::9

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Tejas Jain

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