Windows 7 PPTP Windows 7 L2TP/IPSec Windows 7 IKEv2 Windows 7 SSTP Windows XP PPTP Windows XP L2TP/IPSec Android PPTP Android L2TP/IPSec Android IKEv2 macOS L2TP/IPSec iPhone/iPad IKEv2 iPhone/iPad L2TP/IPSec