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Cross-network communication method and address translation equipment

A cross-network and address technology, applied in the field of data communication, can solve problems such as extended user data transmission time and many jump nodes, and achieve the effect of shortening the data transmission path, increasing the speed, and simplifying the proxy server mode

Inactive Publication Date: 2019-12-10
WUHAN GREENET INFORMATION SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, a proxy server is generally set up on the backbone network. When a user visits a website, when the web browser connects to the corresponding Internet site to obtain network information, the data is transmitted from the network node where the user is located to the backbone network, and then transmitted to the target server. , and the same operation is performed on the data return, the data needs to be continuously forwarded, there are many jump nodes, and there is a routing delay in the middle, which will prolong the user data transmission time

Method used

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  • Cross-network communication method and address translation equipment
  • Cross-network communication method and address translation equipment
  • Cross-network communication method and address translation equipment

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Embodiment 1

[0061] In order to understand the content of this plan more clearly, a brief description of the abbreviations and key terms that appear below is given first:

[0062] DNS (Domain Name System, abbreviated as DNS) server: It is a distributed database on the Internet that maps domain names and IP addresses (that is, Internet Protocol Addresses), enabling users to access the Internet more conveniently without having to remember to The IP number string read directly by the machine. The DNS server is used for domain name resolution, and finally obtains the IP address corresponding to the domain name through the domain name for data access.

[0063] SNAT (Source Network Address Translation, abbreviated as SNAT): source address translation, its function is to convert the source address in the data packet to another address.

[0064] DNAT (Destination Network Address Translation, abbreviated as DNAT): Destination address translation, its function is to convert the destination address ...

Embodiment 2

[0107] With reference to Embodiment 1, the following describes the process of cross-network communication for the foregoing method (2), wherein, before obtaining the user access request, it also includes the process of assigning an IP address to the user-side terminal. Specifically, the user-side terminal initiates a network access request, for example, initiates a network access request to the first network center through PPPOE dialing, and the address translation device obtains the access request of the user-side terminal, and then transmits the access request Send to the BARS server on the first network center side. The BARS server at the first network center side responds to the user's access request, and assigns an IP address and an IP address of the DNS server to the user-side terminal for network connection. The address translation device receives the address assigned by the first network center server to the user-side terminal, and feeds back the address to the user-si...

Embodiment 3

[0115] combine Figure 7 , using a practical application scenario to illustrate one of the implementations of the cross-network communication method of the present invention, here, take the first network center as a network center based on the public network, and the second network center as an example based on an education network explain.

[0116] Wherein, the first source address in the foregoing embodiment is the user-side terminal address, the first target address is the DNS server address of the public network, the second source address is an address that allows access to the education network, and the second target address is the DNS server of the education network address, the third source address is the DNS server address (second target address) of the education network, and the third target address is an address (second source address) that allows access to the education network.

[0117] Wherein, the address conversion device is specifically a DPI device.

[0118]...

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Abstract

The invention discloses a cross-network communication method and address conversion equipment, and the method comprises the steps: receiving a user access request based on a first network center, analyzing the user access request, and obtaining a request resource type carried in the user access request; determining a network center to which the request resource type belongs; if the request resource type belongs to the first network center, sending the user access request to a server at the side of the first network center; and if the request resource type belongs to the second network center,converting an address carried in the user access request to obtain a modified access request, and sending the modified access request to a server at the second network center side. According to the method provided by the invention, cross-network communication of two different networks can be realized, and the address conversion equipment can selectively carry out address conversion according to the type of the request resource, so that the times of data forwarding and skipping can be greatly reduced, the data transmission path is shortened, and the resource access speed of a user is improved.

Description

technical field [0001] The invention belongs to the technical field of data communication, and more specifically relates to a cross-network communication method and an address conversion device. Background technique [0002] At present, when different network operators access across networks, especially when accessing between the education network and the public network, the access data speed is relatively low. On campuses, especially university campuses, there has always been a choice between accessing the education network and the public network represented by the three major operators. There are a lot of education-related resources in the education network, especially the resources on the IPV6 network, but these resources are only for schools and research institutes, relatively closed, and do not take profit as the main purpose. For the public telecommunications network represented by China Telecom, China Mobile and China Unicom, profit is the primary goal, there are man...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/12
CPCH04L61/106H04L67/02H04L61/4511H04L67/56H04L67/60
Inventor 程波谭国权叶志钢
Owner WUHAN GREENET INFORMATION SERVICE
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