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A multimedia communication safe proxy gateway and safety proxy method

A multimedia communication and security proxy technology, applied in the field of multimedia communication security proxy gateway and security proxy, can solve the problems of reducing the security of the network system, the firewall cannot directly handle, and cannot well support multimedia communication, etc.

Inactive Publication Date: 2008-04-02
西安西邮双维通信技术有限公司
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  • Abstract
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Problems solved by technology

[0008] 3. The IP address and port number involved in the H.323 communication are exchanged in the previous process of the current call connection process, such as the port number of the H.245 connection is exchanged in the Q.931 data stream, RTP (Real-time Transport Protocol ) and RTCP (Real-time Transport Control Protocol) port numbers are exchanged in H.245 sessions, firewalls cannot handle this situation directly
[0009] To sum up, on the one hand, IP multimedia communication services can penetrate the firewall without reducing the security of the network system, which is a problem that must be solved for the widespread application of multimedia; The mechanisms for implementing security and the level of security achieved are also different, but none of them can well support multimedia communication based on the H.323 protocol

Method used

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  • A multimedia communication safe proxy gateway and safety proxy method
  • A multimedia communication safe proxy gateway and safety proxy method
  • A multimedia communication safe proxy gateway and safety proxy method

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Embodiment Construction

[0059] Referring to Fig. 1, the figure shows the H.323 security proxy gateway structure that the present invention proposes, is made up of four functional modules, comprises: H.323 protocol control module 101, data relay module 103, security control module 102 and gatekeeper Module 11. Wherein, the data relay module 103 is responsible for two-way transmission of data packets connected with UDP (User Datagram Protocol), and the data packets include RTP (Real-time Transport Protocol) audio stream or video stream, requiring the data relay module to transmit in as little time as possible. Delay fast transmission data packet (proxy multimedia data); H.323 protocol control module 101 is responsible for processing the two-way H.323 (including carrying out Q.931 agreement and carrying out two processes of H.245 agreement) connected with TCP (Transmission Control Protocol) mode ) control protocol, the emphasis is on H.323 call control; the security control module 102 and the gatekeeper...

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Abstract

The present invention relates to safety agent gateway and safety agent method for multimedia communication and combined with fire wall technology, and the multimedia communication penetrates the fire wall without degrading the safety of fire wall. The safety agent gateway includes H.323 protocol control module, data relay module, safety control module and network keeper module, and is located in the joint between the inner network and outer network and with fire wall set. The safety agent method includes the agent module and network keeper module linking technology; the automatically sensing safety agent gateway technology and the medium routing technology.

Description

technical field [0001] The present invention relates to a method for multimedia communication security proxy, more precisely, relates to a method for multimedia communication security proxy based on the H.323 protocol and a multimedia communication security proxy gateway using the method, which can also be called H.323 The security proxy gateway, combined with the firewall technology and its equipment, can enable multimedia communication to pass through the firewall without reducing the security of the firewall. Background technique [0002] With the development of broadband IP network technology, multimedia communication services are increasingly popular. Multimedia communication service has become one of the important goals of broadband IP network planning and construction. [0003] On the one hand, because the broadband network can provide convenient and fast online video on demand, video telephony and video conferencing, e-commerce, online property office, telemedicine,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04L29/06H04L9/00
Inventor 朱志祥黄廷学许成鹏李燕
Owner 西安西邮双维通信技术有限公司
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