alt Hacker NewsThe requirement is to support IPv6 only networks with IPv4 transition mechanisms. It does not preclude contacting v4-only servers.
The requirement is to support IPv6 only networks with IPv4 transition mechanisms. It does not preclude contacting v4-only servers.
And the higher level libraries mostly do it for you, too, even if you directly specify IPv4 addresses in your code (due to NAT64 [1]). I think it only even requires special work from you as a developer if you're using low-level or non-standard libraries.
[1] https://en.wikipedia.org/wiki/NAT64