| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To cause a single accelerator computing section to independently accelerate an IP packet for each virtual private network in an environment where a plurality of virtual private networks passing the single accelerator computing section exist. <P>SOLUTION: On a pre-stage of an accelerator computing section, a new IP header containing an IP address of a network to which an IP packet is to be transferred, is added, an original IP packet is encapsuled without encryption, and the new IP packet is normally encapsuled with encryption after acceleration in an acceleration section, and sent to a public network whereon security is not guaranteed. In an apparatus connected in the destination, the IP packet capsule with encryption is reduced, the acceleration is reduced and the IP packet capsule without encryption is reduced, thereby obtaining an IP packet equal with the original IP packet put into this apparatus. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
