Patent ID: 9391950
Filing Date: 2016-07-12
CPC Classification: H04L

Claim Text:
1. An IP address distribution system comprising: a network including a plurality of switch apparatuses; an IP address distribution apparatus that assigns an IP address according to a request from each of devices connected to the switch apparatuses; and a plurality of position information distribution apparatuses that broadcast a position information packet including 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 the devices, wherein the devices transmit, when requesting assignment of an IP address, an IP-address request signal including the position information and device-specific information previously held, and wherein the IP address distribution apparatus selects, when receiving the IP-address request signal, an IP address from a range corresponding to the position information and the device-specific information included in the IP-address request signal, and distributes the selected IP address to a request source device.