R4#sh run
Building configuration...

Current configuration : 910 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R4
!
!
ip subnet-zero
!
!
no ip domain-lookup
!
ip audit notify log
ip audit po max-events 100
!
call rsvp-sync
!
!
!
!
!
!
!
!
interface FastEthernet0/0
 ip address 180.40.7.130 255.255.255.224
 ip nat inside
 duplex auto
 speed auto
!
interface ATM1/0
 ip address 192.10.32.10 255.255.255.0
 ip nat outside
 no atm ilmi-keepalive
 pvc 0/72
  protocol ip 192.10.32.254 broadcast
 !
!
router ospf 1
 log-adjacency-changes
 network 0.0.0.0 255.255.255.255 area 0
!
ip nat inside source list IPNAT interface ATM1/0 overload
ip classless
no ip http server
ip pim bidir-enable
!
!
ip access-list standard IPNAT
 permit 180.40.7.0 0.0.0.255
 permit 17.0.0.0 0.255.255.255
!
!
dial-peer cor custom
!
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
line aux 0
line vty 0 4
 login
!
end