r4#show ip route
.. .. ..
172.16.0.0/16 is variably subnetted, 4 subnets, 2 masks
O 172.16.0.32/28 [110/60] via 10.93.1.1, 00:03:53, Serial0/0/0
O 172.16.0.16/28 [110/110] via 10.93.1.1, 00:03:53, Serial0/0/0
O 172.16.0.0/28 [110/100] via 10.93.1.1, 00:03:53, Serial0/0/0
O 172.16.0.0/26 is a summary, 00:03:53, Null0
10.0.0.0/8 is variably subnetted, 26 subnets, 5 masks
O 10.89.1.80/28 [110/2] via 10.93.1.34, 00:04:19, FastEthernet0/0
O 10.89.1.64/28 [110/2] via 10.93.1.34, 00:04:20, FastEthernet0/0
O 10.89.1.112/28 [110/2] via 10.93.1.34, 00:04:20, FastEthernet0/0
O 10.89.1.96/28 [110/2] via 10.93.1.34, 00:04:20, FastEthernet0/0
O IA 10.93.22.1/32 [110/111] via 10.93.1.1, 00:03:54, Serial0/0/0
C 10.89.1.16/28 is directly connected, FastEthernet0/1.812
O IA 10.93.21.1/32 [110/111] via 10.93.1.1, 00:03:54, Serial0/0/0
O 10.93.1.16/28 [110/51] via 10.93.1.34, 00:04:21, FastEthernet0/0
C 10.95.1.4/32 is directly connected, Loopback0
O 10.95.1.5/32 [110/2] via 10.93.1.34, 00:04:21, FastEthernet0/0
O IA 10.89.2.0/25 [110/111] via 10.93.1.1, 00:03:55, Serial0/0/0
C 10.89.1.0/28 is directly connected, FastEthernet0/1.811
O 10.89.1.0/25 is a summary, 00:03:55, Null0
O 10.89.0.0/28 [110/101] via 10.93.1.1, 00:03:55, Serial0/0/0
O 10.95.1.0/29 is a summary, 00:03:55, Null0
O 10.95.0.1/32 [110/101] via 10.93.1.1, 00:03:55, Serial0/0/0
O IA 10.93.2.0/26 [110/110] via 10.93.1.1, 00:03:55, Serial0/0/0
O 10.95.1.2/32 [110/51] via 10.93.1.1, 00:03:55, Serial0/0/0
C 10.93.1.0/28 is directly connected, Serial0/0/0
O 10.93.1.0/26 is a summary, 00:03:55, Null0
O IA 10.95.2.0/29 [110/61] via 10.93.1.1, 00:03:55, Serial0/0/0
O IA 10.93.12.1/32 [110/101] via 10.93.1.1, 00:03:55, Serial0/0/0
C 10.93.11.0/28 is directly connected, Loopback11
C 10.89.1.48/28 is directly connected, FastEthernet0/1.814
C 10.89.1.32/28 is directly connected, FastEthernet0/1.813
C 10.93.1.32/28 is directly connected, FastEthernet0/0
r1#show ip route
.. .. ..
172.16.0.0/28 is subnetted, 3 subnets
O 172.16.0.32 [110/60] via 172.16.0.18, 00:18:57, Serial0/0/1
[110/60] via 172.16.0.2, 00:18:57, Serial0/0/0
C 172.16.0.16 is directly connected, Serial0/0/1
C 172.16.0.0 is directly connected, Serial0/0/0
10.0.0.0/8 is variably subnetted, 12 subnets, 5 masks
O IA 10.93.22.1/32 [110/101] via 172.16.0.18, 00:18:57, Serial0/0/1
O IA 10.93.21.1/32 [110/101] via 172.16.0.18, 00:18:57, Serial0/0/1
O IA 10.89.2.0/25 [110/101] via 172.16.0.18, 00:18:58, Serial0/0/1
O IA 10.89.1.0/25 [110/101] via 172.16.0.2, 00:05:05, Serial0/0/0
C 10.89.0.0/28 is directly connected, FastEthernet0/1.801
O IA 10.95.1.0/29 [110/51] via 172.16.0.2, 00:05:04, Serial0/0/0
C 10.95.0.1/32 is directly connected, Loopback0
O IA 10.93.2.0/26 [110/100] via 172.16.0.18, 00:18:59, Serial0/0/1
O IA 10.93.1.0/26 [110/100] via 172.16.0.2, 00:05:06, Serial0/0/0
O IA 10.95.2.0/29 [110/51] via 172.16.0.18, 00:18:59, Serial0/0/1
O IA 10.93.12.1/32 [110/101] via 172.16.0.2, 00:18:59, Serial0/0/0
O IA 10.93.11.1/32 [110/101] via 172.16.0.2, 00:18:59, Serial0/0/0