NETWORK DEVICE, PROGRAM, SYSTEM AND METHOD

PROBLEM TO BE SOLVED: To provide a mechanism in which a network device can receive an instruction performed by a management device using Push communication, even when the network device fails in Handshake of the Push communication with the management device.SOLUTION: A first client computer 110 performs a request for indirect Push communication which is Push communication with a server computer 100 through a second client computer 170 to the second client computer 170. The second client computer 170 transfers an instruction which the server computer 100 performs to the first client computer 110 using the Push communication, to the first client computer 110 after the indirect Push communication.