| 摘要 |
The present invention is directed to a method, a node arrangement and a mobile node for registering a Care-of-Address on behalf of a Mobile Node at a Home Agent in a home network of said Mobile Node when the Mobile Node is connected to a foreign network. The method comprises the steps of: providing at least one advertisement message to said Mobile Node (710) from a network node arrangement (722) in the foreign network (724), which advertisement message identifies the node arrangement (722) as a Home Agent for said Mobile Node (710), and receiving a request for an IP-address from said Mobile Node (710) at said node arrangement (722) as a response to said advertisement message, and providing 0 an IP-address to said Mobile Node (710) from said node arrangement (722) as a response to the request, which IP-address is valid for the Mobile Node (710) at the foreign network (724), and registering a Care-of-Address from said node arrangement (722) on behalf of said Mobile Node (710) at the Home Agent (712) in the home network (714) of said Mobile Node 710. |
