Yep, precisely as the subject line says. In LAN in question we've tried Mac OS X, Windows 7, Ubuntu and ArchLinux. Everything except Ubuntu (what a shame!) works flawlessly, i. e. gets an IP(v6). Actually I managed to get IPv6 address autoconfigured on Ubuntu when turned NetworkManager off and used auto config in
So, what is it and what is more important — is there any solution?