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Data transmission method among client terminals in restricted network and client terminals

A data transmission method and restricted network technology, applied in transmission systems, network interconnection, data exchange through path configuration, etc. Effect

Active Publication Date: 2014-01-15
BEIJING FEINNO COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a data transmission method between clients in a limited network and a client to solve the problem that existing solutions cannot realize data transmission between different clients in a limited network that only allows HTTP transmission

Method used

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  • Data transmission method among client terminals in restricted network and client terminals
  • Data transmission method among client terminals in restricted network and client terminals
  • Data transmission method among client terminals in restricted network and client terminals

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] According to the characteristics of Internet network transmission data, the embodiment of the present invention does not adopt the traditional UDP data transmission method, and proposes a transmission method based on the combination of TCP_Relay (TCP relay server) and HTTP Tunnel (HTTP tunnel server), which ensures data Transmission reliability and integrity. see figure 1 , a data transmission method between clients in a restricted network provided in Embodiment 1 of the present invention, wherein the clients restricted to only allow HTTP (Hypertext Transport Protocol, hypertext transfer protocol) transmission include the first client , the method includes:

[0029] 11: The first client establishes a first connection between t...

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Abstract

The invention discloses a data transmission method among client terminals in a restricted network and the client terminals in order to achieve data transmission among different client terminals in the restricted network in which only HTTP transmission is permitted. The data transmission method among the client terminals in the restricted network includes the steps that first connection between a first client terminal and an HTTP tunnel server is established; an acquiring request packet is sent to the HTTP tunnel server through the first connection, and a session key is further acquired; second connection between the first client terminal and the HTTP tunnel server is established; a mailing request packet is sent to the HTTP tunnel server through the second connection, and a session key is carried in a packet header; TCP data from an opposite end client terminal are received through the HTTP tunnel server and a TCP transit server by the aid of the first connection, and TCP data are sent to the opposite end client terminal through the HTTP tunnel server and the TCP transit server by the aid of the second connection.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data transmission method between clients in a restricted network and a client. Background technique [0002] With the development of Internet technology applications, in the real-time communication and call technology between telecommunication network communication equipment and computer terminals under the Internet network, it can support streaming media data carrying audio and video, while streaming media data is used in Internet transmission. Based on the UDP (User Datagram Protocol, User Datagram Protocol) packet transmission method. [0003] The existing scheme of using UDP data packet transmission has at least the following disadvantages: [0004] Due to the complexity of the Internet network, in a restricted network with restrictive conditions, such as a restricted network with restricted network firewalls or routing devices, when UDP data packets are transmitted...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L29/06H04L29/08
Inventor 陈俊
Owner BEIJING FEINNO COMM TECH
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