| 摘要 |
An IP address distribution system according to the present invention includes a network containing a plurality of switch apparatuses (5, 6), IP address distribution apparatuses (3, 4) that assign an IP address according to a request from each of devices (7-10) connected to the switch apparatuses, and a plurality of position information distribution apparatuses (1, 2) that broadcast a position information packet containing position information into the network, wherein a specific physical port of at least one switch apparatus blocks the position information packet to cause only a single position information packet to be delivered to each of devices, the devices transmit an IP-address request signal containing the position information and device-specific information, when requesting assignment of an IP address, and the IP address distribution apparatuses select an IP address from a range corresponding to the position information and the device-specific information and distribute the selected IP address to a request source device, when receiving the IP-address request signal. |
