Network device management protocol

A network device management protocol is to set up a mode of a single client terminal to multiplex server by a network management facility and all the network devices on a same network. The said management facility can play the part of the single client terminal and these network devices can play the part of the multiple server., thus each said network device with assign a specific communication port number as its port number from the UDP table in line with the protocol and when the request packaging of the client terminal is treated in accordance with the said protocol, its port number of destination and that of source can be exchanged and sent back to the client terminal in the way of broadcast, so the client terminal gets the aim of managing all network devices of the same network.