NAT (Network Address Translation) detection method and system based on instant messaging application

A technology of communication application and detection method, which is applied in the field of communication network, can solve the problems of affecting the detection effect, no NAT detection method, misjudgment of usage, etc., and achieve the effect of large number of users, wide range of equipment types, and long online time

Inactive Publication Date: 2018-05-29
HUBEI UNIV
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Problems solved by technology

The disadvantage is: this method will cause misjudgment due to the usage of the operating system and browser. For example, if one host opens two browsers, the detection effect will be affected.
[0008] In summary, there is currently no NAT detection method based on instant messaging applications

Method used

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  • NAT (Network Address Translation) detection method and system based on instant messaging application
  • NAT (Network Address Translation) detection method and system based on instant messaging application

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with accompanying drawing

[0024] Such as figure 1 Shown is a NAT detection method based on instant messaging application

[0025] The method steps are as follows:

[0026] Step 1) collect the traffic data of the terminal host in the network environment;

[0027] Specifically, network data packets in the entire network environment are collected.

[0028] Step 2) using the collected traffic data for device-side QQ application feature matching;

[0029] Specifically, this method is to use the QQ application on the PC terminal and the mobile terminal, and use wireshark to respectively collect the network data packets when the PC and the mobile device log in to the QQ application, and analyze the common channels and ports of the QQ application through experimental verification. Experiments show that PCs commonly use udp / 8000 for communication, and the protocol identifier is 0x02, and mobile ...

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Abstract

The invention relates to an NAT (Network Address Translation) detection method and system based on an instant messaging application. Real-time data collection, QQ application identification and QQ application analysis are carried out. For the same IP, if QQ log records of a PC side and a mobile side coexist within a time interval, a device can be accurately judged as an NAT device. The method is independent of certain specific operating system. A coverage range is wide. The identification rate is high. The operation is simple and convenient.

Description

technical field [0001] The invention relates to the technical field of communication networks, in particular to a NAT detection method based on instant messaging applications. Background technique [0002] With the development of electronic technology and network technology, more and more terminal devices are connected to the Internet. The emergence of NAT (Network Address Translation) technology alleviates the current problem of insufficient IPv4 addresses, and provides convenient access to the Internet for users such as families, schools, and companies. While this technology provides convenience to users, it also brings troubles to network operators and regulatory authorities. On the one hand, there are many users sharing the Internet privately or operating black Internet cafes to evade supervision; on the other hand, NAT technology increases the difficulty of using passive traffic for personalized network services and illegal user tracking. Therefore, detecting and accu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/58H04L12/26H04L29/06H04L29/12
CPCH04L43/08H04L51/04H04L61/2571H04L63/1425
Inventor 朱国胜雷龙飞祁小云陈胜石志凯镇佳吴善超吴梦宇
Owner HUBEI UNIV
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