Abstract: A policy server receives an access policy information request message, and authenticates the request. When the authentication is successful, an access policy storage is accessed to obtain access policy information corresponding to the source of the message. The server outputs the corresponding access policy information. The information includes an IPv6 address for use, at the source, as a new source address. The information may also include a terminal address setting function, a rebooting option adding function upon terminal address setting, a default gateway setting function, a domain name service (DNS) server address setting function, a tunnel function on or off function, a neighbor cache clearing function, and/or a privacy extension on or off function.