Router-a(config)#router ospf 1
Router-a(config-router)#network 206.202.0.0 0.0.0.255 area 0
Router-b(config)#router ospf 1
Router-b(config-router)# network 206.202.0.0 0.0.0.255 area 0
Router-b(config-router)# network 206.202.1.0 0.0.0.255 area 1
Router-c(config)interface loopback 1
Router-c(config-if)ip address 192.168.1.1 255.255.255.0 Router-c(config-if)interface
loopback 2
Router-c(config-if)ip address 192.168.2.1 255.255.255.0
Router-c(config-if)interface loopback 3
Router-c(config-if)ip
address 192.168.3.1 255.255.255.0 Router-c(config)interface loopback
4
Router-c(config-if)#ip address 192,168.4.1 255.255.255.0
Router-c(config-if)interface
loopback 5
Router-c(config-if)ip address 192.168.5.1 255.255.255.0
Router-c(config)router ospf 1
Router-c(config-router)#network
206.202.1.0 0.0.0.255 area 1
Router-c(config-router)#router rip
Router-c(config-router)#network 192.168.1.0 Router-c(config-router)#network
192.168.2.0 Router-c(config-router)#network 192.168.3.0 Router-c(config-router)#network
192.168.5.0