Gateway of last resort is not set
B 192.168.4.0/24 [200/0] via 172.17.0.1, 00:00:05
B 192.168.5.0/24 [200/0] via 172.17.0.1, 00:00:06
B 192.168.6.0/24 [200/0] via 172.17.0.1, 00:00:06
B 192.168.7.0/24 [200/0] via 172.17.0.1, 00:00:06
C 172.17.0.0/16 is directly connected, Serial0