Patent ID: 7085808

Claim:
A method for distinguishing clients in a communication system comprising at least one wireless access network and at least one wired access network, said at least one wireless access network comprising means for connecting at least one wireless client in communication to said at least one wireless access network, said at least one wired access network comprising means for connecting at least one wired client in communication to said at least one wired access network, and said communication system comprising means for communicating between said at least one wireless access network and said at least one wired access network, wherein the method comprises at least the following steps: a transmission step for transmitting from a requesting node to the communication system a resolution request message indicating a client to be examined, a receiving step for receiving said resolution request message in at least one other node of the communication system, and a decision step for deducing on the basis of a resolution reply message whether said client to be examined is connected to said wireless access network or to said wired access network, wherein the decision on whether said client to be examined is connected to said wireless access network or to said wired access network is performed on the basis of whether said resolution reply message is received in the requesting node.