Yes but that's per client. I mean, I have to manually access every client from the GUI and change the protocol, with 50 clients (that are spread across the country) it's kind of a bummer (when I only need to hide it in 4 machines, the ones that have the GUI always showing for checking who's connected and who's not).
That also means that it's not using IPv6, only IPv4. The day I wanna use IPv6 I'll have to manually access (phisically or remotely) all clients and change the protocol again.
Using a tag for IPv4 and one for IPv6 it's a far more efficient.