[marios]

I find it ironic that the h-online was 'corrected' following a reader's comment ("IPv4 host can not initiate a connection with a IPv6 only host with NAT64"). This is actually false. The NAT64 gateway _can_ do this, provided you have configured it correctly. I found this http://home.nuug.no/~peter/pf/eurobsdcon2012/nat64.html quite helpful, as well as a post on the mailing list [1] describing commong scenarios. Of course, the pf.conf manpage describes with all the details, but that should go without saying :-)

[1] http://www.mail-archive.com/[e-mail]/msg107255.html