An electronic device according to various embodiments of the present invention comprises a communication circuit, at least one memory, and at least one processor, which is electrically connected to the communication circuit and the at least one memory, wherein the at least one memory, when executed, can store instructions allowing the at least one processor to: connect to a first external electronic device through the communication circuit; include a header based on a second protocol in first data generated in order to be transmitted to a second external electronic device by a first application using a first protocol; generate second data in which at least a part of the header based on the second protocol is changed; and transmit the second data to the first external device. Additional various embodiments are possible.