Attack packets sensing device, attack packet detection method, video receiving apparatus, content recording device, and IP communication device

摘要

The network interface comprises transfer unit for transferring (102) the main memory packet receiving unit (103), the packet buffer (105), the packets stored in the packet buffer (106) A (101), the packet buffer attack detection section based on the accumulated amount of the packet (105), to detect the attack by sending a large number of packets (107), attack packets table identifying information is registered attack packets table storing (109) update unit when an attack is detected the memory section (110), attack detection section (107), by using the information obtained from the packets stored in the packet buffer, updating (109) attack packets table (108 a), if a packet the packet receiving section (103) has received, corresponding to the information shown in the attack packets updated information is discarded before it is transferred the main memory (102) of the packet, the packet I a discarding unit and (104a).