| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a heterogeneous network interworking method for a mobile node having multiple network interfaces. <P>SOLUTION: When a mobile node moves from a first network to a second network, a packet is transmitted by setting up a simple IP address, which is a fixed address of the mobile node, to a sender's address in an inner header of the packet, and setting an IP address assigned actually to a first network interface at the first network as a sender's address in an external header. After moving to the second network, a packet is transmitted by setting up an IP address assigned to a second network interface. In another embodiment, a virtual network interface is generated, and a flow of packet in a link layer is adjusted so as to transfer a packet passing through the multiple network interfaces to a mobile IP layer through the virtual network interface. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
