RIP version 1

RIP version 1

It  uses Classful routing and Broadcast periodic updates 30 seconds, hold-down period 180 seconds.
It does not carry subnet information and
not support for variable length subnet masks (VLSM)


All routers have loopback address.

R1(config)#int l 0
R1(config-if)#ip add 1.1.1.1 255.255.255.0
R1(config-if)#int f 0/0
R1(config-if)#ip add 10.1.12.1 255.255.255.0
R1(config-if)#no sh
R1(config-if)#ex
R1(config)#router rip
R1(config-router)#version 1
R1(config-router)#net 1.1.1.0
R1(config-router)#net 10.1.12.0
R1(config-router)#no auto-summary

R1#sh run | s rip

router rip

network 1.0.0.0

network 10.0.0.0

no auto-summary

R2#sh ip route rip

R 1.0.0.0/8 [120/1] via 10.1.12.1, 00:00:14, FastEthernet0/0

R 3.0.0.0/8 [120/1] via 10.1.13.3, 00:00:26, FastEthernet1/0

R1#ping 3.3.3.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 32/83/188 ms