Yarr. Ohh, looks like I am too late. Yesterday was “Talk like a pirate day.”

Anyway, finally figured out how to add IPv6-reverse zones,
so a “host -n 2001:aaaa:bbbb:cccc::1″ returns a valid hostname now. Of course, this is all still work in progress, so you should actually add two reverse zones for your IPv6 subnet, one with the ending .ip6.arpa which will be the official one and one with the ending .ip6.inet because the Microsoft IPv6 stack does not know about the new .ip6.arpa ending, yet.

While we are on the subject: To disable anonymous IPv6 addresses in Windows XP type the following command:

cmd> ipv6 -p gpu UseTemporaryAddresses no
and type the following commands
cmd> net stop tcpip6
cmd> net start tcpip6
or do a complete reboot if the above commands do not work.

You might wonder, why you cannot ping your ipv6 addresses in Windows XP. This is caused by the built-in ipv6 firewall which blocks ICMPv6 packets by default. To change this you have to use the new “netsh firewall” interface.
Type the following command and you should be able to
ping your IPv6 addresses from anywhere:
netsh firewall> set adapter “Local Area Connection” icmp all=enable
and confirm the changes with the command
netsh firewall> show adapter “Local Area Connection”.

For more information about the Windows XP/SP1 IPv6 firewall google for netsh firewall.