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by WorldMaker
1046 days ago
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Some NAT46 (not to be confused with NAT64) tools and routers exist in the wild today. "Stateless" ones work by manually setting routes for chosen IPv4 addresses to IPv6 ones or treating all of IPv4 traffic as the "ultimate" semi-private IPv6 "subnet" and prepend a fixed IPv6 prefix to all IPv4 traffic (and you can do that with just about any IPv6 /64). Stateful ones act a lot like NAT44 routers and can also use "out-of-bound" protocols similar to NAT44's UPnP (but I think distinct from?) to setup routes on the fly from application requests. Though they exist, my understanding is that the need and use cases for them is overall much weaker than NAT64 or NAT44. |
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