IPSec Road warrior Linux Client

I was wondering if anyone had a basic example for configuring road warrior with Linux CLI.

I managed to get the Strongswan android client connected but having a bit less luck with Linux.

Thought the output could be useful for the wiki.

I agree, however I cannot help unfortunately. I managed to get IPSec working on MacOS but I do not have a linux box.

If you manage to succeed, would you post here your configuration?