Patent ID: 7958220

Claim:
An apparatus for acquiring an IPV6 address, comprising a request module and an allocation module, wherein, the request module is adapted to send an IPV6 address allocation request to the allocation module, and acquire an allocated IPV6 address from an IPV6 address allocation acknowledgement returned from the allocation module; the allocation module is adapted to allocate the IPV6 address according to the IPV6 address allocation request, and make the allocated IPV6 address to be carried in the IPV6 address allocation acknowledgement for returning to the request module; wherein the IPV6 address comprises at least one of an IPV6 prefix and an IPV6 interface identification; wherein the IPV6 prefix is determined by the allocation module based on an interface or Internet Service Provider (ISP) domain to which a user terminal containing the request module belongs; and the IPV6 interface ID is selected by the allocation module based on the interface or the ISP domain to which the user terminal belongs.