How do you enable IPv6 support on a R77 gateway running the GAiIA OS?

A.
Run the IPv6 script $FWDIR/scripts/fwipv6_enable and reboot.

B.
Enable the IPv6 Software Blade for the gateway in Smart Dashboard.

C.
Under WebUI go to System Management > System Configuration, turn on IPv6 Support,
click apply and reboot.

D.
IPv6 is enabled by default.