How to configure rip on a cisco router? More details...

1. How to Configure RIP on a Cisco Router?
RIP(Routing Information Protocol) is one of the routing protocols you need to
understand if you want to pass the Cisco CCNA exam. In this article I’ll show you how
to configure RIP on a Cisco router. This is the topology that I will use:
Above we see 3 routers called Spade, Hearts and Clubs. There are a couple of
networks so we’ll have something to advertise in RIP. First let’s configure all the
interfaces:
Spade>enable
Spade#configure terminal
Spade(config)#interface fastEthernet 0/0
Spade(config-if)#no shutdown
Spade(config-if)#ip address 172.16.1.1 255.255.255.0
Spade(config-if)#exit
Spade(config)#interface fastEthernet 1/0
Spade(config-if)#ip address 192.168.12.1 255.255.255.0
Spade(config-if)#no shutdown
Hearts>enable
Hearts#configure terminal
Hearts(config)#interface fastEthernet 0/0
Hearts(config-if)#no shutdown
Hearts(config-if)#ip address 192.168.12.2 255.255.255.0
Hearts(config-if)#exit
Hearts(config)#interface FastEthernet 1/0
Hearts(config-if)#no shutdown
Hearts(config-if)#ip address 192.168.23.2 255.255.255.0
Hearts(config-if)#exit
Clubs>enable
Clubs#configure terminal
Clubs(config)#interface fastEthernet 0/0
Clubs(config-if)#no shutdown
Clubs(config-if)#ip address 172.16.2.3 255.255.255.0
Clubs(config-if)#exit
Clubs(config)#interface fastEthernet 1/0
Clubs(config-if)#no shutdown
Clubs(config-if)#ip address 192.168.23.3 255.255.255.0
Clubs(config-if)#exit
Before we continue RIP we’ll check the routing tables:
Spade#showip route

2. Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - S-IS level-2
ia - IS-IS inter area, * - candidate default,
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C
192.168.12.0/24 is directly connected, FastEthernet1/0
172.16.0.0/24 is subnetted, 1 subnets
C
172.16.1.0 is directly connected, FastEthernet0/0
Hearts#showip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - S-IS level-2
ia - IS-IS inter area, * - candidate default,
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C
192.168.12.0/24 is directly connected, FastEthernet0/0
C
192.168.23.0/24 is directly connected, FastEthernet1/0
Clubs#showip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - S-IS level-2
ia - IS-IS inter area, * - candidate default,
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 1 subnets
C
172.16.2.0 is directly connected, FastEthernet0/0
C
192.168.23.0/24 is directly connected, FastEthernet1/0
Our routers only know 1 thing…their directly connected interfaces. Let’s configure
RIP and see what happens:
Spade(config)#router rip
Spade(config-router)#network 192.168.12.0

3. Spade(config-router)#network 172.16.1.0
Hearts(config)#router rip
Hearts(config-router)#network 192.168.12.0
We use the router rip command to go to the RIP configuration. Next step is to use
the network command which does two things:
…
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