> I don't feel this - trying to connect to any of Polish IPv6 network in
> universities and waiting for up to 8 months for answering mail. Freenet6
> works but ...hmm... can be better.
There are more IPv6 providers than just Freenet6. Try http://hs247.com
for more information.

> And still can't get real answer about how reverse DNS works, if .ip6.int
> or .ip6.arpa is right domain, why two domains etc.
There's no domain like ip6.arpa. Use only ip6.int.

> FreeNet6 delivers only .ip6.int. and while all works it takes few seconds
> to check nonexisting .ip6.int subdomain while doing telnet/ssh to ipv6
> host.
Worked okay for me... maybe there's something wrong with your PTR
records.

Regards,
Andre