COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND PROGRAM

PROBLEM TO BE SOLVED: To provide a communication device capable of reducing the burden of processing on the device.SOLUTION: There is provided a communication system in which a detecting part of a communication device detects a device to which communications can be addressed on a network and acquires identification information of the detected device, a first session processing part of the communication device reestablishes a session with a device that can be specified by the identification information of the device detected by the detecting part when the identification information is stored in an identification information storing part, and a second session processing part of the device establishes the session upon receipt of a notification from the communication device and ends the session upon receipt of a notification of completion of transmission and reception of the data.