| 摘要 |
A technology is disclosed that provides a handover method and the like capable of improving communication efficiency by detecting that a handover destination network is a home link at an early stage and reducing tunnel overhead between a mobile node and a home agent. The technology includes, when the mobile node performs a handover from an access router of a network before the handover to which the mobile node is currently connected, to an access router of another network that is a handover destination: a step of transmitting, by a mobile node 107, an address allocation request message for acquiring an address in the handover destination network allocated to the mobile node, to the access router of the handover destination; and a step of transmitting, by a home agent 106 of the mobile node, a notification message including information indicating a type of the address of the mobile node allocated by an address allocation server of the handover destination or the home agent as a result of the address allocation request message, to the mobile node via the access router before the handover.
|
