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A method and system for penetrating firewalls based on port forwarding multiplexing technology

A multiplexing technology, firewall technology, applied in transmission systems, electrical components, etc., can solve problems such as inaccessibility of internal network application services to external network users

Active Publication Date: 2019-06-28
STATE GRID CORP OF CHINA +2
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  • Abstract
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Problems solved by technology

[0008] Aiming at the deficiencies of the existing technology, the present invention provides a method and system based on the port forwarding and multiplexing technology to penetrate the firewall, using the port forwarding and multiplexing technology to solve the problem that the internal network application service protected by the firewall cannot be used by external network users. access problem

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  • A method and system for penetrating firewalls based on port forwarding multiplexing technology
  • A method and system for penetrating firewalls based on port forwarding multiplexing technology

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Embodiment Construction

[0027] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] Such as figure 1 As shown, a method for penetrating a firewall based on port forwarding multiplexing technology, the method includes: (1) obtaining the IP information of the application terminal S of the internal network and the external IP address of the control terminal C of the external network; the steps (1) ) includes setting an internal network application port A and an internal network application forwarding port B' on the internal network application terminal S, and setting an external network monitoring forwarding port B and an external network monitoring port C' on the external network control terminal C , check whether the external network monitoring forwarding port B and external network monitoring port C' are occupied, and initialize the transmission data of external network monitoring forwarding port...

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Abstract

The invention relates to a method and a system for penetrating through a firewall based on the port forwarding multiplexing technology. The method comprises the steps of acquiring IP information of an internal network application end S and an external IP address of an external network control end C; forwarding and connecting through a data interface; monitoring the data interface; acquiring data of internal network application end S. With the adoption of the port forwarding multiplexing technology, the problem that the external network users cannot access the internal network application service protected by the firewall.

Description

technical field [0001] The invention relates to a method and a system for penetrating a firewall, in particular to a method and a system for penetrating a firewall based on port forwarding multiplexing technology. Background technique [0002] In recent years, due to more and more information security incidents, enterprises have become more and more strict on internal network access control policies, and firewall security policies are very strict on the control of internal application systems. However, in practice, due to technical level, firewall, routing and other reasons, It is difficult to achieve access from the extranet to the intranet. For example, if a server application system in the intranet is opened, the service can only be used by intranet users, and there is no way for extranet users to directly access it. Therefore, if the extranet Users can access system services in the LAN through port forwarding and multiplexing technology. [0003] Port forwarding and mul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/029
Inventor 冯谷余勇石聪聪郭骞蒋诚智高鹏范杰俞庚申曹宛恬李尼格叶云陈牧侯功
Owner STATE GRID CORP OF CHINA
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