An internal and external network isolation communication system and method

Abstract

In order to solve the problem of inability to communicate between the existing local local area network and the Internet, the invention provides an internal and external network isolation communication system and method, belonging to the technical field of the Internet. The system includes external network equipment, intranet equipment, cloud transit server and network bridge. The method includes the following steps: selecting and executing the first working mode or the second working mode, and adjusting the communication connection mode between the cloud transit server, the network bridge and the external network device based on the selection result; establishing the state of accessing the internal network from the external network or the internal network Access the working status of the external network, and execute the corresponding access communication process based on the determined result. The internal and external network isolation communication system and method in the present invention can realize data interaction between internal and external networks. At the same time, due to the isolation of the bridge, the authorization and authentication of the cloud transit server, and the user-specified data protocol specification, the three interactions effectively ensure that the intranet network security is not affected.

Description

technical field [0001] The invention relates to the field of Internet technology, and in particular, to a system and method for isolating internal and external networks. Background technique [0002] As a highly integrated and comprehensive application of a new generation of information technology, the Internet of Things has the characteristics of strong penetration, great driving effect and good comprehensive benefits. [0003] However, for the consideration of network integrity and other factors, complete physical isolation is usually performed between the local area network and the Internet, that is, communication between the local area network and the Internet cannot be performed. With the rise and implementation of the Industrial Internet and the Internet of Things, it is imperative to carry out limited interconnection between the internal and external networks under the premise of ensuring the ultra-high security level of the local area network. SUMMARY OF THE INVENT...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing local area network cannot communicate with the Internet, the present invention provides a communication system and method for isolating internal and external networks

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