I can confirm the networkmanager-strongswan package does not work for L2TP/IPSec. It implements a pure IPSec VPN. IPSec VPN's are easy to setup in Linux, but difficult or impossible in Windows and OS X.
I can confirm the networkmanager- strongswan package does not work for L2TP/IPSec. It implements a pure IPSec VPN. IPSec VPN's are easy to setup in Linux, but difficult or impossible in Windows and OS X.