Configuring RIP - GNS3 Lab

Hi ! everyone on today we are going to learn about how to configure rip GNS3 lab in packet tracer as before going to the topic we will do A quick summary of RIPv2:

> Routing Information Protocol (RIP) is a true distance-vector routing protocol
> RIP permits a hop count of up to 15, so anything that requires 16 hops is deemed unreachable.
> RIP sends the complete routing table out to all active interfaces every 30 seconds (RIP updates occur every 30 seconds)
> RIP version 2 does send subnet mask information with the route updates. This is called classless routing.
> RIP only uses hop count to determine the best way to a remote network (a hop is a router)
> Administrative Distance is 120

> Support VLSM & dis-contiguous networks we have shown below topology.

Configuring interfaces for R0, R1 & R2:

On Router R0:
R0(config)#interface s0/0
R0(config-if)#ip address 192.168.1.2 255.255.255.0
R0(config-if)#no shutdown
R0(config-if)#interface loopback0
R0(config)#ip address 12.0.0.1 255.0.0.0

On Router R1:
R1(config)#interface s0/0
R1(config-if)#ip address 192.168.1.1 255.255.255.0
R1(config-if)#no shutdown
R1(config-if)#interface f0/0
R1(config-if)#ip address 192.168.2.1 255.255.255.0
R1(config-if)#no shutdown

On Router R2:
R2(config)#interface f0/0
R2(config-if)#ip address 192.168.2.2 255.255.255.0
R2(config-if)#interface lo0
R2(config-if)#ip address 200.200.200.1 255.255.255.0

Before enable RIP we should check the routing table on these routers to understand what has been changed in these routers.

Verify: 
when we check now we look the Serial and FastEthernet are connected properly.
  
R0#show ip route 

R1#show ip route

R2#show ip route

Notice that these 3 routers only see the directly connected routers.

Now if you ping from the loopback (or any interface) of R0 to the loopback (or any interface) of R2 then the it will not successful because R0 doesn’t know which interface it should send the packets out to reach network 200.200.200.0.

Now enable RIPv2 on three routers

R0(config)#router rip

R0(config-router)#version 2

R0(config-router)#network 12.0.0.0

R0(config-router)#network 192.168.1.0

R1(config)#router rip

R1(config-router)#version 2

R1(config-router)#network 192.168.1.0

R1(config-router)#network 192.168.2.0

R2(config)#router rip

R2(config-router)#version 2

R2(config-router)#network 200.200.200.0

R2(config-router)#network 192.168.2.0

Notice that with RIP protocol we just need to type the main network without subnet mask or wildcard mask. If you type a subnetwork, it will be auto summary into the main network.

Check the routing tables of these routers we will see the differences

Verify

R0#show ip route

R1#show ip route

R2#show ip route

Now we can ping from the R0’s loopback interface to the R2’s loopback interface as the routing table of R0 has a path to R2’s loopback interface and vice versa.

If you want to check what is inside the update packet, use the command debug ip rip.

R0#debug ip rip

RIP protocol debugging is on

R0#exit

To turn off the debug ip, use the command undebug ip rip. If you want to disable all the debug processes, use the command undebug all.

Therefore, we successfully completed our lab session on configuring rip GNS3 lab is done in packet tracer version 7.1. For more information you can download our Pkt. file given below.