Apps Java based Android app that can tunnel traffic from phone to a specific host?

[Lax Clarke]

I would like to write an Android app that can tunnel all traffic from the phone to a specific host (and that host can strip off the tunnel and send traffic, eventually, to the actual destination host).



I see a lot of forums answers that show how to do this via manual VPN client settings on the phone, but I would like to write my own app.

Any pointers to specific API or tools someone can provide will be greatly appreciated.



Thank you.