IP ADDRESS DISTRIBUTION SYSTEM AND IP ADDRESS DISTRIBUTION METHOD

摘要

An IP address distribution system according to the present invention includes a network including a plurality of switches, and an IP address distribution apparatus connected to the network, in which each of the switches holds therein arrangement information that indicates a position thereof in the network, and when receiving an IP-address request signal from one of, devices connected thereto, adds the held arrangement information to the IP-address request signal and transfers the IP-address request signal, and when receiving an IP-address request signal, the IP address distribution apparatus selects an IP address from a range corresponding to the arrangement information added to the signal and distributes the selected IP address to a request source device.

主权项

1. An IP address distribution system comprising:
a network including a plurality of switch apparatuses; and an IP address distribution apparatus connected to the network, wherein each of the switch apparatuses holds arrangement information that indicates a position thereof in the network, and when receiving an IP-address request signal from a device in the network, checks whether the arrangement information is added to the received IP-address request signal and when no arrangement information is added thereto, adds the held arrangement information to the IP-address request signal and transfers the IP-address request signal; and wherein when receiving an IP-address request signal, the IP address distribution apparatus selects an IP address from a range corresponding to the arrangement information added to the signal and distributes the selected IP address to a request source device.