Router Name: Belfast

Router >enable

Router #configure terminal

Router (config) #hostname Belfast

Belfast (config) #enable password cisco

Belfast (config) #enable secret class

Belfast (config) #line console 0

Belfast (config-line) #password cisco

Belfast (config-line) #login

Belfast (config-line) #line vty 0 4

Belfast (config-line) #password cisco

Belfast (config-line) #login

Belfast (config-line) #exit

Belfast (config) #

Belfast (config) #interface serial 0

Belfast (config-if) #ip address 172.16.12.5 255.255.255.252

Belfast (config-if) #clock rate 64000

Belfast (config-if) #no shutdown

Belfast (config-if) #exit

Belfast (config) #

Belfast (config) #interface serial 1

Belfast (config-if) #ip address 172.16.12.2 255.255.255.252

Belfast (config-if) #clock rate 64000

Belfast (config-if) #no shutdown

Belfast (config-if) #exit

Belfast (config) #

Belfast (config) #interface ethernet 0

Belfast (config-if) #ip address 10.0.0.1 255.0.0.0

Belfast (config-if) #no shutdown

Belfast (config-if) #exit

Belfast (config) #

Belfast (config) #router ospf 1

Belfast (config-router) #network 172.16.12.0 0.0.0.3 area 0

Belfast (config-router) #network 172.16.12.4 0.0.0.3 area 0

Belfast (config-router) #exit

Belfast (config) #

Belfast (config) #ip route 0.0.0.0 0.0.0.0 10.0.0.2

Belfast (config) #ip nat pool public_access 192.168.1.6 netmask 255.255.255.252

Belfast (config) #access-list 1 permit 172.16.0.0 0.0.3.255

Belfast (config) #ip nat inside source list 1 pool public_access

Belfast (config) #interface ethernet 0

Belfast (config-if) #ip nat outside

Belfast (config-if) #interface serial 0

Belfast (config-if) #ip nat inside

Belfast (config-if) #interface serial 1

Belfast (config-if) #ip nat inside

Belfast (config-if) #exit

Belfast (config) #ip nat translation timeout 120

Belfast (config) #exit

Belfast #copy running-config startup-config