Hi,
Can any one of you help me with an explanation why I am seeing the 1:1 static NATed IP getting patted as well with the below setup. It is some times getting patted using the internal IP (172.X.X1.2) and <public IP1>. And this happening only for the only for (ip nat inside source static 172.X.X1.2 <public IP1>) not to all NAT statement. It looks strange to me:
interface Loopback10
description ***** Loopback for CLAN PAT *****
ip address <public IP3> 255.255.255.255
ip nat inside source list 110 interface Loopback10 overload
ip nat inside source static 172.X.X1.2 <public IP1>
ip nat inside source static 172.X.X.11 <public IP2>
access-list 110 deny ip host <management loopback IP> any
access-list 110 deny ip host <CE WAN interface IP> any
access-list 110 permit ip any any
When see the NAT translation I can see the 172.X.X1.2 getting translated Loopback 10 IP or <public IP1> getting translated Loopback 10 IP.
1941_001B#sh ip nat tr
udp <Loopback10 IP>:55867 172.X.X.2:55867 <Destination>:14040 Destination:14040
tcp <Loopback10 IP>:55867 <public IP1>:55867 <Destination>:14040 Destination:14040
Thanks.
Joby