Router 1
Router>enable
Router#configure terminal
Router(config)#hostname R1
R1(config)#int s0/0/0
R1(config-if)#ip add 192.168.0.1 255.255.255.252
R1(config-if)#clock rate 64000
R1(config-if)#no shutdown
R1(config-if)#exit
R1(config)#int loopback 1
R1(config-if)#ip add 10.0.1.1 255.255.255.0
R1(config-if)#int loopback 2
R1(config-if)#ip add 10.0.2.1 255.255.255.0
R1(config-if)#int loopback 3
R1(config-if)#ip add 10.0.3.1 255.255.255.0
R1(config-if)#^Z
R1#write
Router 2
Router>enable
Router#configure terminal
Router(config)#hostname R2
R2(config)#int s0/1/0
R2(config-if)#ip add 192.168.0.2 255.255.255.252
R2(config-if)#no shutdown
R2(config-if)#exit
R2(config)#int s0/0/0
R2(config-if)#ip add 192.168.0.5 255.255.255.252
R2(config-if)#clock rate 64000
R2(config-if)#no shutdown
R2(config-if)#^Z
R2#conf t
R2(config)#int loopback 1
R2(config-if)#ip add 20.0.1.1 255.255.255.0
R2(config-if)#int loopback 2
R2(config-if)#ip add 20.0.2.1 255.255.255.0
R2(config-if)#int loopback 3
R2(config-if)#ip add 20.0.3.1 255.255.255.0
R2(config-if)#^Z
R2#wrote
Router 3
Router>enable
Router#configure terminal
Router(config)#hostname R3
R3(config)#int s0/1/0
R3(config-if)#ip add 192.168.0.6 255.255.255.252
R3(config-if)#no shutdown
R3(config-if)#^Z
R3#conf t
R3(config)#int loopback 1
R3(config-if)#ip add 30.0.1.1 255.255.255.0
R3(config-if)#int loopback 2
R3(config-if)#ip add 30.0.2.1 255.255.255.0
R3(config-if)#int loopback 3
R3(config-if)#ip add 30.0.3.1 255.255.255.0
R3(config-if)#^Z
R3#write
Default Configuration on Router 1
R1>enable
R1#configure terminal
R1(config)#ip route 0.0.0.0 0.0.0.0 192.168.0.2
R1(config)#exit
R1#write
Default Configuration on Router 2
R2>enable
R2#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#ip router 10.0.1.0 255.255.255.0
R2(config)#ip route 10.0.1.0 255.255.255.0 192.168.0.1
R2(config)#ip route 10.0.2.0 255.255.255.0 192.168.0.1
R2(config)#ip route 10.0.3.0 255.255.255.0 192.168.0.1
R2(config)#ip route 30.0.1.0 255.255.255.0 192.168.0.1
R2(config)#ip route 30.0.2.0 255.255.255.0 192.168.0.1
R2(config)#ip route 30.0.3.0 255.255.255.0 192.168.0.1
R2(config)#exit
R2#write
Default Configuration on Router 3
R3>enable
R3#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
R3(config)#ip route 0.0.0.0 0.0.0.0 192.168.0.5
R3(config)#exit
R3#write
Verification on Router 1
R1#show ip route
10.0.0.0/24 is subnetted, 3 subnets
C 10.0.1.0 is directly connected, Loopback1
C 10.0.2.0 is directly connected, Loopback2
C 10.0.3.0 is directly connected, Loopback3
192.168.0.0/30 is subnetted, 1 subnets
C 192.168.0.0 is directly connected, Serial0/0/0
S* 0.0.0.0/0 [1/0] via 192.168.0.2
Verification on Router 2
R2#show ip route
10.0.0.0/24 is subnetted, 3 subnets
S 10.0.1.0 [1/0] via 192.168.0.1
S 10.0.2.0 [1/0] via 192.168.0.1
S 10.0.3.0 [1/0] via 192.168.0.1
20.0.0.0/24 is subnetted, 3 subnets
C 20.0.1.0 is directly connected, Loopback1
C 20.0.2.0 is directly connected, Loopback2
C 20.0.3.0 is directly connected, Loopback3
30.0.0.0/24 is subnetted, 3 subnets
S 30.0.1.0 [1/0] via 192.168.0.1
S 30.0.2.0 [1/0] via 192.168.0.1
S 30.0.3.0 [1/0] via 192.168.0.1
192.168.0.0/30 is subnetted, 2 subnets
C 192.168.0.0 is directly connected, Serial0/1/0
C 192.168.0.4 is directly connected, Serial0/0/0
Verification on Router 3
R3#show ip route
30.0.0.0/24 is subnetted, 3 subnets
C 30.0.1.0 is directly connected, Loopback1
C 30.0.2.0 is directly connected, Loopback2
C 30.0.3.0 is directly connected, Loopback3
192.168.0.0/30 is subnetted, 1 subnets
C 192.168.0.4 is directly connected, Serial0/1/0
S* 0.0.0.0/0 [1/0] via 192.168.0.5
