RIP Version 1 - Routing Protocols and Concepts - page 213

When you are finished with the RIP configuration, return to privileged EXEC mode and
save the current configuration to NVRAM.

Task 3: Verify RIP Routing

Use the show ip route command to verify that each router has all the networks in the
topology in its routing table.

Step 1.

R1# show ip route
<Output omitted>

172.30.0.0/24 is subnetted, 3 subnets
C 172.30.1.0 is directly connected, FastEthernet0/0
C 172.30.2.0 is directly connected, Serial0/0/0
R 172.30.3.0 [120/1] via 172.30.2.2, 00:00:22, Serial0/0/0
R 192.168.4.0/24 [120/1] via 172.30.2.2, 00:00:22, Serial0/0/0
R 192.168.5.0/24 [120/2] via 172.30.2.2, 00:00:22, Serial0/0/0

Note: RIPv1 is a classful routing protocol. Classful routing protocols do not send the subnet mask with network
in routing updates. For example, 172.30.1.0 is sent by R1 to R2 without any subnet mask information.

R2# show ip route
<Output omitted>

172.30.0.0/24 is subnetted, 3 subnets
R 172.30.1.0 [120/1] via 172.30.2.1, 00:00:04, Serial0/0/0
C 172.30.2.0 is directly connected, Serial0/0/0
C 172.30.3.0 is directly connected, FastEthernet0/0
192.168.4.0/30 is subnetted, 1 subnets
C 192.168.4.8 is directly connected, Serial0/0/1
R 192.168.5.0/24 [120/1] via 192.168.4.10, 00:00:19, Serial0/0/1

R3# show ip route
<Output omitted>

R 172.30.0.0/16 [120/1] via 192.168.4.9, 00:00:22, Serial0/0/1
192.168.4.0/30 is subnetted, 1 subnets
C 192.168.4.8 is directly connected, Serial0/0/1
C 192.168.5.0/24 is directly connected, FastEthernet0/0

Verify that all necessary interfaces are active. Step 2.

If one or more routing tables do not have a converged routing table, first make sure that all
necessary interfaces are active with show ip interface brief .

Then use show ip protocols to verify the RIP configuration. Notice in the output from this
command that the FastEthernet 0/0 interface is no longer listed under Interface but is now
listed under a new section of the output: Passive Interface(s) .