"In IPv6 when using address auto-configuration, the Interface Identifier (MAC address) of an interface port is used to make its public IP address unique, exposing the type of hardware used and providing a unique handle for a user's online activity." - wikipedia on ipv6. ipv4 is more fungible than your MAC address.
kalleboo|10 years ago
brohee|10 years ago
sheensleeves|10 years ago