While I've not played with it much, it shouldn't be too difficult to set up the router/gateway as v6 but everything behind it on v4. Only do V4 DHCP etc, firewall blocks any v6 on the wrong side of the fence.
At least till some potty thing comes along and breaks security yet again.
The Register - Independent news and views for the tech community. Part of Situation Publishing
Biting the hand that feeds IT © 1998–2020