Get address of client connected via NAT by socket descriptor?

Question

Computer networks

There is a client, there is a server on the Internet; the client connects to the server from the local network through NAT.
More precisely, through several NATs:
192.168.3.x (this is the client) ->192.168.3.1 -> 192.168.2.1 -> 192.168.1.1 -> (ISP) -> server
Problem: the server does a getpeername(..) and gets the address client 192.168.1.1; you need its external Internet address (for geolocation).
What to do?

Answer 1

nothing. nat because and nat that hides addresses. you can only ask the client for its address at the application level if it is provided in the protocol/application