We had studied the experimental survey of ship's network to use the INMARSAT-A or the satellite marinephone (N-STAR) with a ship telephone line, which have got a certain results. But it has misgivings to use the line for a long time that never be use for ship general communication or a state of emergency. In this study, we experimented the efficiency of ship's electric power supply line using its simple LAN instead of ship's data communication line. From the experiment, we understood that the access server from three places of the ship without exclusive communication line for a conventional ship. And we were able to use on.the ship's network repeatedly that is meteorological information, navigation alert, news, mail and other multimedia information from the Internet and the ship's host station.
