Patent ID: 8356092

Claim:
A method, comprising: receiving, at an apparatus, a first kind of address information related to at least one of service data flows, media streams, and data packets relayed between a terminal and one of an external client and server; receiving, at the apparatus, a second kind of address information used for data transmission of said at least one of service data flows, media streams, and data packets; monitoring, at the apparatus, data traffic between the terminal and a relay entity based on policy information related to the first and second kind of address information; detecting, at the apparatus, a used transmission scheme between the terminal and the relay entity; holding, at the apparatus, address information of the at least one of service data flows, media streams, and data packets in the data transmission; and enforcing, at the apparatus, by using the first kind of address information, policy control to the at least one of service data flows, media streams, and data packets by matching the first kind of address information against the address information of the at least one of service data flows, media streams, and data packets.