On 2024/06/22 14:58, Kirill A. Korinsky wrote:
> My approach is different with attempt to avoid dual stack, which based on
> use AI_ADDRCONFIG to determine which stack should be used.
> 
> What should fix both cases I guess.
> 
> Just a side note: do you know any other OS which doesn't support dual-stack?

Not certain, but I think perhaps Windows might not.