Duplicate address detection device, duplicate address detection method, duplicate address detection system, and central monitoring device

摘要

PROBLEM TO BE SOLVED: To provide a duplicate address detection technique capable of more easily detecting duplicate IP addresses on a network. [Solution] The duplicate address detection device 1 includes a search unit 13 configured to search for a controller 3 to which a search target IP address is assigned on the IP network NW, and a plurality of controllers 3 to which the IP address is assigned. The determination unit 14 is configured to determine whether or not the search unit 13 has extracted, and the display unit 17 configured to display the determination result of the determination unit 14 on the display device 108. [Selection diagram]