Will the following work?
ip nat inside source static 220.127.116.11 18.104.22.168 route-map x ip nat inside source static 22.214.171.124 126.96.36.199 route-map x
(say the remote net is 188.8.131.52 in both cases)
What I'm not sure about is if the reply to an access from outside can be translated properly.
Client 184.108.40.206:1234 sends a packet to Server 220.127.116.11:5678 which internally becomes 18.104.22.168:5678.
Server 22.214.171.124:5678 then sends a reply packet to 126.96.36.199:1234.
What does the router do with this?
Will it translate the reply's source address to 188.8.131.52 or 184.108.40.206? From the above, at first sight both are possible. Does it take the initial socket into account and reply using the address on which it was contacted in the first place?