R4#sh run | b ip insp
ip inspect name Prob2 tcp
ip inspect name Prob2 udp
ip inspect name Prob2 h323
ip inspect name Prob2 icmp

interface ATM1/0
 ip address 192.10.32.5 255.255.255.0
 ip access-group 100 in
 ip nat outside
 ip inspect Prob2 out
 no atm ilmi-keepalive
 pvc 0/72
  protocol ip 192.10.32.254 broadcast
 !
!

access-list 100 permit udp any any eq ntp
access-list 100 deny   ip any any log
!