Fast ??? Entity for managing information to optimize ??? and method to optimize ??? using Fast ??? Entity

摘要

According to the invention, a plurality of access points, and this in the distribution system including a plurality of mobile nodes quick connecting DAD administrator memory, distribution system that stores the address table recording the information including the IP addresses of the plurality of mobile nodes the recording unit that extracts the IP address of the first mobile node from the interface unit, the neighbor node a request message for receiving a neighbor node request message including the IP address recorded in the address table from the first mobile node to a new connection, the plurality stored in the address table, of retrieving the IP address of the mobile node searching unit, the first mobile node's IP address to determine the determination unit and the determination portion whether the same IP address exist for determining by comparison with the IP address of the plurality of mobile nodes a result the same IP address, If it does not exist, the raw response message indicating that the IP address of the first mobile node to confirm the new CoA And, a first control unit for transmitting through the interface to the first mobile node. Accordingly, to reduce the DAD processing time, a fast handoff can be, and prevent packet loss accordingly.