R4#sh run | b 0/0
interface FastEthernet0/0
 ip address 17.80.1.2 255.255.255.0
 ip nat inside
 duplex auto
 speed auto
!
interface ATM1/0
 ip address 192.10.32.14 255.255.255.0
 ip nat outside
 no atm ilmi-keepalive
 pvc 0/72
  protocol ip 192.10.32.254
 !
!
ip nat inside source list 1 interface ATM1/0 overload
ip nat outside source static 192.10.32.254 17.80.1.3 extendable
ip nat outside source static 192.10.32.254 17.80.1.250 extendable
ip nat outside source static 192.10.32.254 17.80.1.252 extendable
ip nat outside source static 192.10.32.254 17.80.1.254 extendable