i want that two remote users can make file exchange

each remote user is under firewall, and each user ip is not real ip but for example 192.168.1.x

anybody knows something about indy tunneling

thanks

Eh....this is a German board, but anyways....

....tunneling is hard in Delphi, especially with no extra components.
Are we assuming a proxy as well or just a firewall? You could embed a security verification that lets packages pass when the connected user (assumed P2P) passes the security check.

Eh, other than that, ask the veterans on this board