Patent ID: 7430183

Claim:
A communication system having a communication apparatus and a plurality of connecting apparatuses, said plurality of connecting apparatuses being assigned the same network ID, wherein said communication apparatus comprises: an input device for manually inputting identification information for identifying a specific connecting apparatus among said plurality of connecting apparatuses, the manually input identification information being unique and different from the network ID; a transmitting device for transmitting the manually input identification information, which has been input by said input device, to a first connecting apparatus among said plurality of connecting apparatuses; and a setting device for performing a setting for making a connection to said specific connecting apparatus based upon a response which has been transmitted from said first connecting apparatus, wherein said transmitting device is further configured to discover said specific connecting apparatus by transmitting the same manually input identification information which has been transmitted to said first connecting apparatus to a second connecting apparatus which is one of said plurality of connecting apparatuses, when the response indicates that said first connecting apparatus is not said specific connecting apparatus.