配置内容：
router ospf 1
log-adjacency-changes
network 10.64.12.1 0.0.0.0 area 290
network 10.165.0.0 0.0.255.255 area 290
network 172.16.200.7 0.0.0.0 area 290
network 192.168.100.26 0.0.0.0 area 290
!
ip classless
ip route 0.0.0.0 0.0.0.0 124.114.128.181
