To allow for quick multi-home connection by enabling a request for addition of a communication path to be quickly transmitted without waiting for communication confirmation by HEARTBEAT when a network environment of a mobile terminal moves from a state in which communication with a server side is impossible to a state in which it is possible.
A mobile terminal MN moves out of an area of a Wi-Fi network, and at time t7 an assigned IP address becomes invalid, and then the status of an IP address b2 becomes "ACTIVE (UNCONFIRMED)" in which transmission of data is not permitted but transmission of an ASCONF chunk is permitted. At time t8, the mobile terminal MN moves in a network area of an interface a2, and addition of a communication path from the interface a2 to an IP address b2 of a server S is requested, and then the mobile terminal MN can immediately transmit ASCONF Add at time t9 without waiting for communication confirmation by HEARTBEAT, because at that time the status of the IP address b2 is "ACTIVE (UNCONFIRMED)."
HASEGAWA TERUYUKI
| JP2006279467A | 2006-10-12 | |||
| JP2006501702A | 2006-01-12 | |||
| JP2006279467A | 2006-10-12 | |||
| JP2006501702A | 2006-01-12 |
Kaori Tanaka
Sanji Tanabe
Next Patent: RELAY DEVICE, COMMUNICATION SYSTEM AND AUTHENTICATION METHOD