IP address duplication detection method, IP address, duplicate detection device and IP address duplication detection program

摘要

PROBLEM TO BE SOLVED: To detect duplication of an IP address in an IP address network from the outside of the IP network.;SOLUTION: A value of an identification field in an IP header is used instead of information on a service level, for identifying a transmission node of a response IP packet. A plurality of request IP packets are transmitted to an IP address to be investigated, a value of an identifier field in the IP header of the response IP packet is monitored to determine whether the duplication of the IP address occurs or not.;COPYRIGHT: (C)2009,JPO&INPIT