| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem; routing table look-up and SPD search of an encapsulated IP header on the occasion of an IPsec tunnel mode become a bottleneck in respect of performance, in an IPsec processor which performs all processes or a process other than encryption are performed by software. SOLUTION: Database search is skipped by caching routing table look-up results and SPD search results in the IPsec tunnel information inside an IPsec tunnel device driver, and performing IPsec processing on the basis of the caching from the second time forward. COPYRIGHT: (C)2007,JPO&INPIT
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