Network attack defense system as well as defense program defense equipment, defense and how

摘要

After receiving the attack information from the sensing device 50, in certain cases, the server 20-1 under attack from the attack information, protection device 10 includes a relay which is the relay destination of the next to the server 20-1 to the identified is obtained from the routing table 30-1, from among the relay device 30-2, and selected as the notification destination relay apparatus 30-2 except the relay device 30-1 relay device and 30-1 and the adjacent protection device 10 to. The protection device 10 is, from the relay apparatus 30-2 for the relay unit 30-2 that is selected, and notifies the route information to be routed through the self-attack packets, modify the routing table on the basis of this routing information I want to control the passage of attack packets that have been through the self.