摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method of transmitting data from a Virtual Private Network'VPN' server to a Mobile Node'MN'. SOLUTION: Upon sensing generation of data destined for a Mobile Node'MN' 421 in a Virtual Private Network'VPN' server 429, a Customer Premise Equipment'CPE' router 419 requests Internet Service Providers'ISP' routers 411, 413, 415, 417 connected to the VPN to search for an address of a Foreign Agent'FA', to which the MN belongs. The ISP router searches for the FA address through a Home Agent'HA' 425 and routes the data to the FA identified by the searched FA address. The FA then locates the MN and forwards the data to the MN.</p> |