My personal opinion is to skip dns64 in the transition path and instead rely on clat completely. The intersection of devices that support op108 but don't have c

My personal opinion is to skip dns64 in the transition path and instead rely on clat completely. The intersection of devices that support op108 but don't have clat is pretty small, so you are not really gaining much with dns64 imho. It is noteworthy that there are many ways to accompish the sort of ipv4 service that nat64 does. I believe map-t/map-e and lw4o6 are the main contenders these days. In theory at least I don't see why you couldn't do clat style thing with those too. The main advantage of these newer technologies is that they allow service provider side to be stateless, whereas naive nat64 requires similar stateful connection tracking as traditional nat44 (=plain ipv4 nat). RFC 9313 has really good information about this https://www.rfc-editor.org/rfc/rfc9313.html https://www.rfc-editor.org/rfc/rfc9313.html