Comment by commandersaki a year ago
I'm pretty sure we're discussing about connecting to the Internet.
What I understood is being implied is that ipv6 has little utility if it cannot access ipv4, but is not the case the other way around.
Through a NAT64 NAT. Which is extra work, but not that bad.
Not really my point, was just pointing out there's scant incentive to transition from the incumbent.
And to do that, you mentioned a condition that's either ① satisfied by current IPv6 or ② impossible to satisfy, and for which that's clear on even a moment's reflection. Not sure which of those two you had in mind, but in either case: Please don't do such things.
How would v6 connect to v4? Specifically, how would the return packets back from v4 to v6 be routed?