COMMUNICATION MANAGEMENT SYSTEM, COMMUNICATION MANAGEMENT METHOD, AND COMMUNICATION CONTROL DEVICE

摘要

The present invention provides a technique for managing P2P communication appropriately. Each P2P node (320) constituting a P2P network (322) in a communication management system (300) conducts P2P communication with another P2P node. A P2P node (350) has a P2P connection to communicate with a P2P node (320). A node detector (340) refers to communication data transmitted from or to a P2P node (350) to detect identification information of a P2P node (320), and registers the information in a P2P node database (360). A communication control system (100) possessed by an ISP (330) refers to identification information stored in the P2P node database (360), so as to detect and perform filtering on P2P communication between P2P nodes (320).