OpenBSD, with PF and Unbound, has excellent NAT64/DNS64 support. Unfortunately, my ISP is still IPv4, but with HE tunnel broker I can at least experiment with a

OpenBSD, with PF and Unbound, has excellent NAT64/DNS64 support. Unfortunately, my ISP is still IPv4, but with HE tunnel broker I can at least experiment with an IPv6 only VLAN. Works great on all clients I tested: Windows, Debian, and *BSDs. BTW, my ISP has been promising a /60 for many months now. Apparently, it's about their "provisioning software" they inherited. Huh, equipment less of a concern in this case.