Router>enable
Router#configure terminal
Router(config)#interface fa1/0
Router(config-if)#ip address 10.10.30.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#interface fa0/0
Router(config-if)#ip address 10.10.40.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#ip route 10.10.20.0 255.255.255.0 10.10.30.2
Router(config)#ip route 10.10.10.0 255.255.255.0 10.10.40.2
Router>enable
Router#configure terminal
Router(config)#interface fa0/0
Router(config-if)#ip address 10.10.40.2 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#interface fa1/0
Router(config-if)#ip address 10.10.10.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#interface se9/0
Router(config-if)#ip address 10.10.50.2 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#ip route 10.10.20.0 255.255.255.0 10.10.40.1
Router(config)#ip route 10.10.20.0 255.255.255.0 10.10.50.1
Router>enable
Router#configure terminal
Router(config)#interface fa0/0
Router(config-if)#ip address 10.10.30.2 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#interface fa1/0
Router(config-if)#ip address 10.10.20.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#interface se9/0
Router(config-if)#ip address 10.10.50.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#ip route 10.10.10.0 255.255.255.0 10.10.30.1
Router(config)#ip route 10.10.10.0 255.255.255.0 10.10.50.2