There was an IETF draft for this as well, but doesn't look to have really gone anywhere https://datatracker.ietf.org/doc/html/draft-chimiak-enhanced-ipv4-03 htt

There was an IETF draft for this as well, but doesn't look to have really gone anywhere https://datatracker.ietf.org/doc/html/draft-chimiak-enhanced-ipv4-03 https://datatracker.ietf.org/doc/html/draft-chimiak-enhanced...