Published on 2024-09-12 01:30 by Niladri Das

Introduction to RIPv1

RIPv1 (Routing Information Protocol version 1) is a distance-vector routing protocol that is used to exchange routing information among routers. It is a simple protocol that uses hop count as the metric to determine the best path.

Theory

RIPv1 uses the following key concepts:

• Distance-vector algorithm: RIPv1 uses a distance-vector algorithm to calculate the best path to a destination network. Each router maintains a routing table that lists the best path to each destination network.
• Hop count: RIPv1 uses hop count as the metric to determine the best path. The hop count is the number of routers that a packet must pass through to reach the destination network.

Summary

RIPv1 is a simple protocol that does not support subnet masks, classless inter-domain routing (CIDR), or multicast updates. It is an older protocol that has been largely replaced by RIPv2.

Configuration and Verification

RIPv1 configuration in R1:

R1(config)#router rip
R1(config-router)#network 192.168.1.0
R1(config-router)#network 192.168.2.0
R1(config-router)#network 192.168.12.0
R1(config-router)#network 192.168.13.0
R1(config-router)#end

R1 Verification

R1#show ip route
R1#show ip protocols
R1#show ip rip database

RIPv1 configuration in R2:

R2(config)#router rip
R2(config-router)#network 192.168.3.0
R2(config-router)#network 192.168.4.0
R2(config-router)#network 192.168.12.0
R2(config-router)#network 192.168.23.0
R2(config-router)#end

R2 Verification

R2#show ip route
R2#show ip protocols
R2#show ip rip database

RIPv1 configuration in R3:

R3(config)#router rip
R3(config-router)#network 192.168.5.0
R3(config-router)#network 192.168.6.0
R3(config-router)#network 192.168.13.0
R3(config-router)#network 192.168.23.0
R3(config-router)#end

R3 Verification

R3#show ip route
R3#show ip protocols
R3#show ip rip database

Written by Niladri Das