https://datatracker.ietf.org/doc/draft-carpenter-shanti/
draft-carpenter-shanti-01 - Shimmed IPv4/IPv6 Address Network Translation Interface (SHANTI)
There is a pragmatic need for a packet-level translation mechanism between IPv4 and IPv6, for scenarios where no other mode of IPv4 to IPv6 interworking is...
draftcarpentershanti