Yeah all of these rely on layer 2 or dhcp relay and are really ipv4 only solutions.

Not to discount what the fog guys had… love what they made :)

Look at ironic for something better.

What we eventually ended up with after a couple of iterations was decidedly better for our use case :)

But sadly doesn’t exist in the outside world yet :(.

Could you share your case's details? It sounds like you wanted better L3/IPv6 support and figured out a clean way to achieve it.