Bidirectional protocol isolation method and its device in network

A protocol and network technology, which is applied in the field of two-way protocol isolation devices, can solve the problems of no advanced application layer inspection function, no virus detection function, and a small number of users, so as to achieve the effect of convenient data access, good security, and guaranteed security

Inactive Publication Date: 2008-02-20
BEIJING CITY UNIVERSITY
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Problems solved by technology

[0010] 1) Some are simply isolated based on the switch method, and data exchange between internal and external networks cannot be conveniently performed;
[0011] 2) Even if there is an isolation technology based on the switch mode data exchange function, the speed is very slow, the highest is only 10Mbit / s;
[0012] 3) There is no advanced application layer inspection function, and no virus detection function;
[0013] 4) The number of users supported is small, and it can only address many problems such as a small network

Method used

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  • Bidirectional protocol isolation method and its device in network
  • Bidirectional protocol isolation method and its device in network
  • Bidirectional protocol isolation method and its device in network

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Embodiment Construction

[0039] Isolation is a security technical means implemented to protect the high-security network environment. However, due to the different semantics of isolation, different isolation technologies are produced, which can be summarized as follows:

[0040] 1. Disconnection technology: This method requires the internal and external networks to operate independently and completely cut off the connection between each other, which is what we call a dual-machine dual-network system, which achieves that the internal and external networks become impossible to exchange information islands. So as to reach or approach the absolute security realm; the disadvantage is that the information exchange is very inconvenient, the cost is high, and the maintenance and use are inconvenient. It is a method that has both disadvantages and advantages. This is also the biggest shortcoming of the first-generation isolation technology, which is a serious waste of resources;

[0041] 2. Physical isolation (Iso...

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Abstract

The utility model discloses an isolation method for bidirectional protocols in network and the specialized equipments of the method. The utility model really realizes the protocol isolation between the internal network and the external network; the safety of the internal network is ensured; hackers cannot build direct dialogue with the internal network; the function of the core isolation card of the utility model is not programmable; content review and DNS protection are provided, which can resist hostile attack; data bidirectional transmission is possible, and not only good safety is provided to users, the data access of users is also facilitated.

Description

Technical field [0001] The invention relates to a two-way protocol isolation method in a network, which can perform two-way protocol isolation for data transmitted in the network, and a corresponding two-way protocol isolation device. Background technique [0002] Informatization is the only way to develop our country's economy. It can be said that in today's world, whoever has a higher degree of informatization will take the initiative in economic development. [0003] As a key project of national informatization construction, e-government plays an important role in improving government office efficiency and increasing government office transparency. However, the development of e-government construction has also raised new problems for us. For example, the spread of harmful information such as computer viruses has seriously affected normal network activities; network illegal and criminal activities have become increasingly prominent, attacking government websites, spreading rumo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 郭乐深张乃靖史乃彪
Owner BEIJING CITY UNIVERSITY
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