| 摘要 |
The present invention relates to a method for blocking a distributed denial of service (DDoS) attack through remote control of a communications terminal of a customer, and a system for blocking the DDoS attack therefor. The method of the present invention comprises: an IP reallocating control step in which a customer terminal remote control device controls a new IP address to be reallocated to a communications terminal device having an attack target IP address allocated therein when a DDoS detection device detects the DDoS attack with respect to a dynamic IP address allocated in the communications terminal device; an IP reallocating confirmation step in which the DDoS detection device confirms reallocation of the new IP address for the communications terminal device of a dynamic host configuration protocol (DHCP) server according to an IP reallocation request from the communications terminal device; and an attack target IP blocking step in which the DDoS blocking device blocks the attack target IP address according to the reallocation of the new IP address for the communications terminal device. According to the present invention, when detecting the DDoS attack with respect to a dynamic IP address allocated to the communications terminal device of the customer, the attack target IP address is recovered in real time, the communications terminal device is controlled, and the new IP address is reallocated, thereby maintaining connection of Internet communications with respect to the communications terminal device without disconnection to block packet transmission caused by the DDoS attack, so damage to an Internet service provider (ISP) network can be prevented. |
