[nextw33k]

Yes they can grab the IPv6 address but IPv6 has a privacy extension to cater for this. It will alter your local IPv6 address periodically. You could configure it to update every hour and effectively they'd be thinking you were a new PC on the network.

IPv4 you'd have a small range of IP addresses but with IPv6 you can have a different IPv6 address each hour if you so choose.

http://www.internetsociety.org/deploy360/resources/privacy-e...

[joosters]

Thanks for that link (IPv6 newbie here, I really need to properly learn it some day...)