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A fast processing method and device for nat business

A processing method and service configuration technology, applied in the communication field, can solve the problems of long time consumption, low packet forwarding efficiency, low NAT service matching efficiency, etc., so as to improve matching efficiency, improve packet forwarding efficiency, and reduce search time. effect of times

Active Publication Date: 2021-10-26
NEW H3C SECURITY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It can be seen from the above that each message received by a network device (even if a connection receives the same service message) needs to go through the above matching process, but each message may only match a few of the NAT matching rules, Therefore, a large number of NAT matching rules are matched when matching each packet, and it takes a long time for the network device to search for NAT matching rules multiple times.
This results in a very low matching efficiency of the NAT service, which in turn results in a very low packet forwarding efficiency.

Method used

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  • A fast processing method and device for nat business
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  • A fast processing method and device for nat business

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0027] The NAT service refers to a service for performing network address translation. Specifically, the internal IP address of the local area network can be converted into a legal external IP address, so that the internal nodes can communicate with the external network.

[0028] A network device that supports NAT services can implement network address translation. For example, a terminal device in a LAN requests to connect to an external network, and a router that supports NAT serv...

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Abstract

Embodiments of the present application provide a method and device for quickly processing NAT services, wherein the method for quickly processing NAT services includes: obtaining message information of a message to be processed; determining the first message matching item corresponding to the message information, and The first packet matching item is matched in the preset packet matching item; if the first packet matching item is matched, the first NAT service matching information corresponding to the first packet matching item is obtained according to the preset matching relationship, and according to The first NAT service matching information performs NAT conversion processing on the packet to be processed. Through this technical solution, it is possible to search and match the first message matching item in the preset message matching items once, and quickly obtain the corresponding NAT service matching information, so as to perform NAT processing on the message to be processed by obtaining the NAT service matching information . In this way, the number of searches is reduced, the matching efficiency of the NAT service is improved, and the message forwarding efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method and device for quickly processing NAT (Network Address Translation, Network Address Translation) services. Background technique [0002] Currently, network devices can support multiple types of NAT services, and at least one NAT matching rule can be correspondingly configured for each type of NAT service. In these NAT matching rules, ACL (Access Control List, access control list) filtering rules can also be specified. When the packet matches the ACL specified by a certain NAT matching rule (this ACL is the NAT matching rule), the packet Perform NAT conversion, if the ACL cannot be matched, the packet will not be NAT converted, but other business processing will be performed. [0003] After the network device receives the message, it will perform NAT service matching processing on the message. After the message matches a certain NAT matching rule of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/06H04L12/725H04L12/743
CPCH04L61/255H04L61/2557H04L63/101H04L61/2514H04L45/306H04L45/74591
Inventor 孙鑫明
Owner NEW H3C SECURITY TECH CO LTD
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