And if that's applies across the board, in 20 years time that might have filtered through to mean ipv4 can be dropped in my company.
I'd rather see this at a lower level than network manager and bodging in with bpf, so it's just a default part of any device running a linux network stack, but I don't know enough about kernel development and choices to know how possible that is in practice.
This should have been supported in the kernel 25 years ago though if the goal was to help ipv6 migration
