With the use of a blocking server spoofing attack-defense methods

摘要

The present invention relates to a spoofing attack-defense methods, comprising a blocking server is used, and, in particular, to a spoofing attack-defense methods, comprising a blocking server is used, which is characterized by:Testing of ip and mac addresses, which are contained in a arp packet by a client in a network is received, and then changing the addresses in a legitimate ip address and a corresponding mac address, if is confirmed that the addresses are used in the case of a spoofing attack.According to the present invention can, in the case of the blocking of a spoofing aggression on a network, an ip address and a mac address for a legitimate hardware which is connected to the network, and stored in advance be monitored and, thus, it is possible to provide a precise defence to carry out in a short time.