Android : Is it possible to set a true-ip to all network traffic for my app

I'm looking for a way to create a debug version of my app that I can send to testers in other countries that would otherwise be geo-gated to normal users. I can normally set up a proxy server for this but it can be time consuming for a simple tester and setting the true-ip from within the app as a debugging feature would be the best solution. I know how to set it using normal http classes but I cant figure out how to set it on all the traffic that the webview in our app uses.

What I'm thinking is some how I can get the current network object from the ConnectivityManager and some how set the InetAddress but Im not sure that this will work.

Does anyone have some insight on setting a true-ip or spoofing the client/device ip so that our testers dont have to go through the trouble of configuring a proxy server.