I am using Zentyal OS as a proxy for my company network.
Now, I have a situation in which I need to map a private/internal IP address to a public address so that outsider may access internal network using the public IP.
Is there any idea to do so?
I have no idea about Zentyal OS, but in standard router lingo this would be a DMZ zone where traffic from the outside hitting the router is redirected to a specific machine(s) inside the network. In other cases it can be accomplished using static-nat and port-forwarding rules.