Gateway of last resort is not set
B 192.168.4.0/24 [20/0] via 172.16.0.1, 00:33:34
B 192.168.5.0/24 [20/0] via 172.16.0.1, 00:33:34
B 192.168.6.0/24 [20/0] via 172.16.0.1, 00:33:34
B 192.168.7.0/24 [20/0] via 172.16.0.1, 00:33:34
C 172.16.0.0/16 is directly connected, Serial0
C 172.17.0.0/16 is directly connected, Serial1
B 192.168.4.0/22 [200/0] via 0.0.0.0, 00:07:09, Null0