java - How to establish a VPN connection (Cisco IPSec Xauth PSK) within my android app instead of activating it through Android's inbuilt VPN tool?

Question

I am developing an app where I have to connect to a remote server through VPN. Presently I am using Android's inbuilt tool for VPN configuration and connection (Settings>More>VPN>...), which I have to activate and deactivate several times during the use of the app (the server blocks other internet connection when connected though this VPN, so I only want to establish it once in a while).

Here is the configuration necessary for that VPN connection: Name: arbitrary Type: IPSec Xauth PSK Server Address: known IPSec Identifier: known IPSec Pre-shared key: known Username: known Password: known

If I understood right, I could either run a background service to establish the connection and then activate/deactivate from the foreground/UI activity, or maybe just have an inbuilt method if that activity/class to establish the VPN connection when necessary.

I also know there is VpnService class but I think it is much more complex than what I need. I have seen suggestions on using OpenVPN source code but I get lost on where to pick it up. This as an example: Android: Sample Code to connect to VPN in Android 4.0 using VPNService API

Is it possible to have this inbuilt VPN? Could someone give me a hint on how to code it? Thanks in advance

EDIT: I also have found here that it is not possible configure an L2TP/IPSec, would it also apply to IPSec Xauth PSK?? Create L2TP/IPSec VPN base on VpnService programmatically in Android

Answer 1

Waitting for answers