Hello, first sorry for my English, is bad. I have a problem with a nat cisco 2611 router with adsl wic, the configuration I think this ok, but not working properly. I put the configuration and the result of the debug ip nat. Thank you.

DEBUG IP

========

*Mar  1 05:10:43.152: NAT: s=62.43.x.x, d=77.231.x.x->192.168.0.2 [19369]
*Mar  1 05:10:46.161: NAT: s=62.43.x.x, d=77.231.x.x->192.168.0.2 [19377]
*Mar  1 05:10:52.159: NAT: s=62.43.x.x, d=77.231.x.x->192.168.0.2 [19390]

*Mar  1 05:11:52.161: NAT: expiring 77.231.x.x (192.168.0.2) tcp 25 (25)

77.231.x.x is the external fixe ip on asl

CONFIG

======

service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
memory-size iomem 10
ip subnet-zero
!
no ip domain lookup
!
ip audit notify log
ip audit po max-events 100
!
voice call carrier capacity active
!
mta receive maximum-recipients 0
!
interface ATM0/0
mac-address 0024.d2c2.831f
no ip address
no ip route-cache
no ip mroute-cache
no atm auto-configuration
no atm ilmi-keepalive
no atm address-registration
no atm ilmi-enable
bundle-enable
dsl operating-mode auto
no fair-queue
hold-queue 208 in
!
interface ATM0/0.1 point-to-point
ip address dhcp
ip nat outside
no ip route-cache
no ip mroute-cache
pvc 0/44
  encapsulation aal5snap
!
!
interface Ethernet0/0
ip address 192.168.0.222 255.255.255.0
ip nat inside
half-duplex
hold-queue 100 out
!
interface Ethernet0/1
no ip address
shutdown
half-duplex
!
ip nat inside source list 1 interface ATM0/0.1 overload
ip nat inside source static tcp 192.168.0.2 25 int atm0/0.1 25

ip classless
ip route 0.0.0.0 0.0.0.0 ATM0/0.1
ip http server
!
access-list 1 permit 192.168.0.0 0.0.0.255
!
call rsvp-sync
!
mgcp profile default
!
dial-peer cor custom
!
line con 0
line aux 0
line vty 0 4
login
!
end