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AH message forwarding method and system

A forwarding method and forwarding system technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problem of not effectively shortening the overall time of message processing and forwarding, and achieve the effect of shortening the forwarding time

Active Publication Date: 2014-09-17
OPZOON TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In the prior art, the forwarding process of the AH message needs to go through two steps: searching for the IPSEC SA and decapsulating the AH message, and searching the fast forwarding table for secondary matching and forwarding, so the time spent on message processing and forwarding cannot be effectively shortened. overall time

Method used

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  • AH message forwarding method and system
  • AH message forwarding method and system

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0027] figure 1 It is a schematic diagram of the principle of AH message forwarding in the preferred embodiment of the present invention.

[0028] Such as figure 1 As shown, the message structure of the AH message includes: a Mac header, a first-layer IP header, an AH protocol header, a second-layer IP header, and DATA data. Wherein src represents the source IP address of the IP packet, and dst represents the destinati...

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Abstract

The invention discloses an AH message forwarding method and system. The AH message forwarding method and system are aimed to solve the problem that in the AH message forwarding process, PSEC SA needs to be looked for first, an AH message needs to be unpacked, then a quick forwarding table is looked for, and secondary matching and forwarding are carried out, and accordingly AH message forwarding time cannot be effectively shortened. The forwarding method includes the steps of determining whether a quick forwarding table corresponding to a current AH message exists after the AH message is received, processing and forwarding the current AH message according to the quick forwarding table if the answer is positive, and creating a quick forwarding table according to the current AH message if the answer is negative and then processing and forwarding the current AH message correspondingly. By means of creating of the quick forwarding table, other AH messages corresponding to the AH message whose quick forwarding table is correspondingly created are directly processed, the process of repeated searching or secondary matching is omitted and AH message forwarding time is effectively shortened.

Description

technical field [0001] The invention belongs to the field of computer network communication technology leadership, and specifically relates to an AH message forwarding method and system. Background technique [0002] Internet Protocol Security (IPSEC) is an open standard security framework based on the Internet Engineering Task Force, which defends against network attacks through packet filtering and implementation of trusted communications. IPSEC data packets are divided into AH (Authentication Header) packets and ESP (Encapsulating Security Payload) packets. Among them, the AH message only authenticates and encapsulates the message without encryption, and the inner IP header of the AH message can be seen during the forwarding process. [0003] Currently, multi-core network devices usually use fast forwarding tables to forward packets, so as to reduce search time for packet forwarding paths and conversion time for service matching. In the forwarding process of the AH mess...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L29/06H04L45/74
Inventor 陈海滨于立洋章敏王禹王智民
Owner OPZOON TECH
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