Distributed gateway system in 4-6-4 hybrid protocol network and access method

A technology of distributed gateway and mixed protocol, applied in the field of network access based on distributed gateway, can solve the problems of not meeting the real-time requirements of network communication, frequent transmission, increasing the pressure of data processing of PLAT gateway, etc., to solve the pressure of gateway server problem effect

Inactive Publication Date: 2013-03-20
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0013] However, too much information or too frequent transmission between CLAT and PLAT will cause a large number of network packets to wait in CLAT, seriously increase network delay, fail to meet the real-time requirements of network communication, and increase the data for PLAT gateway dealing with stress

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  • Distributed gateway system in 4-6-4 hybrid protocol network and access method
  • Distributed gateway system in 4-6-4 hybrid protocol network and access method
  • Distributed gateway system in 4-6-4 hybrid protocol network and access method

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[0039] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0040] In addition, the steps shown in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and, although a logical order is shown in the flow diagrams, in some cases, the sequence may be different. The steps shown or described are performed in the order herein.

[0041] Such as figure 2 As shown, it is a schematic diagram of the archite...

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Abstract

The invention discloses a distributed gateway system in a 4-6-4 hybrid protocol network and an access method. The method comprises the steps that one or more distributed CLAT (Customer Side Translator) gateways receive a first access request to an IPv4 (Internet Protocol Version 4) server located on a network address translation PLAT (provider side translator) gateway side initiated by an IPv4 client; a first IP (Internet Protocol) address of IPv4 in the first access request is converted to a second IP address of IPv6 (Internet Protocol Version 6) according to an address conversion rule in the CLAT gateways; and a second access request to the PLAT gateway is initiated based on the second IP address of the IPv6; the second access request also carries a third IP address of the IPv4 and a third port; and the third IP address and the third port conduct pre-mapping formation on the first IP address of the IPv4 and a first port corresponding to the first IP address according to a preset address mapping rule via the CLAT gateways. The problems of gateway server pressure and network delay caused during an application-level gateway processing course are solved.

Description

technical field [0001] The invention relates to the field of Internet communication, in particular to a distributed gateway system and an access method in a 4-6-4 mixed protocol network, in particular to a distributed gateway-based network access method and system in an IPv4 and IPv6 mixed network. Background technique [0002] At present, the application layer gateway ALG (Application Layer Gateway) technology works in the application layer of the TCP / IP protocol, mainly for specific application layer protocols, such as hypertext transfer protocol (HTTP), text transfer protocol (FTP), domain name resolution protocol ( DNS), SIP protocol and so on. [0003] When a user on a trusted network intends to connect to a service on an untrusted network such as the Internet, the app is first directed to a proxy server in the firewall. In the proxy server, the terminal IP address information and port information carried in the network packet will be modified to the address and IP of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L29/06H04L12/66
Inventor 赵钦王振华黄小红张燕林潇俊闫屾赵晶晶
Owner BEIJING UNIV OF POSTS & TELECOMM
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