We use scanners talking to a DCLINK server on port 3003, when setting up NAT to the backup server it will not connect to port 3003, though we can ping it and telnet on port 23 see relevent config below:
interface GigabitEthernet0/0.17
description DR Voice Vlan
encapsulation dot1Q 17
ip address 172.16.17.253 255.255.255.0
ip wccp 61 redirect in
ip nat outside
!
interface GigabitEthernet0/0.176
description DR data vlan
encapsulation dot1Q 176
ip address 172.17.6.252 255.255.255.0
ip wccp 61 redirect in
ip flow ingress
ip flow egress
ip nat inside
!
interface FastEthernet0/3/0
description N3008351R IPMAN
bandwidth 10000
ip address 172.28.6.254 255.255.255.252
ip wccp 62 redirect in
ip flow ingress
ip flow egress
ip nat outside
!
ip nat inside source static 172.17.6.174 172.16.17.230
sh ip nat trans
Pro Inside global Inside local Outside local Outside global
udp 172.16.17.230:161 172.17.6.174:161 172.17.7.206:1647 172.17.7.206:1647
icmp 172.16.17.230:3528 172.17.6.174:3528 172.17.7.206:3528 172.17.7.206:3528
--- 172.16.17.230 172.17.6.174 --- ---
anybody any ideas I have not had problems before with NAT, the server has not got any firewall setup
