Anybody able to use Strong Swan and connected to it ?

I was using yast for strong swan /vpn configuration.
It does not work whatever settings I choose - is anybody using it with success?

Although I don’t use strong swan,
Although a little dated, there have been a number of threads in the past about strong swan and AFAIK issues in all threads were resolved.

I’d recommend you do a search on, and skim those threads and if you still have a problem, post a detailed description which should include any errors that are returned.