Device for unidirectional file transmission among different networks

Abstract

The invention discloses a device for unidirectional file transmission among different networks. The device comprises a transmitting device and a receiving device, wherein the transmitting device is accessed to an information source network, and the receiving device is accessed to an information sink network. The device is characterized in that: the transmitting device and the receiving device are connected through a plurality of Ethernet straight-through cables which only support unidirectional data transmission physically; the transmitting device transmits a file to be transmitted to the receiving device through the Ethernet straight-through cables; and the receiving device receives and processes information transmitted through the Ethernet straight-through cables. The invention further discloses a unidirectional file transmission device which adopts a traffic limiting method to prevent data loss caused by unconfirmed transmission methods. The invention further discloses a unidirectional file transmission device which adopts special confirmation hardware for transmitting confirmation information.

Description

technical field [0001] The invention relates to a device for one-way data transmission between different networks, which belongs to the field of network security. Background technique [0002] The traditional one-way data sharing of internal and external network data is to use CD-ROM and other read-only storage media to transfer files between internal and external networks. Obviously, this file transfer method that requires manual intervention has disadvantages such as low efficiency, volatile storage media, and high cost of use. At present, there are also unidirectional data transmission systems on the market through Ethernet → unidirectional transmission bridge → optical fiber signal. Although the reliability and efficiency of transmission can be guaranteed, the deployment difficulty and equipment cost are relatively high. [0003] With the rapid advancement of Internet technology, people rely more and more on the Internet. They have become accustomed to using the Interne...

AI Technical Summary

Problems solved by technology

[0003] With the rapid advancement of Internet technology, people rely more and more on the Internet. They have become accustomed to using the Internet to obtain valuable information, establish connections with the world, and enjoy the entertainment provided. However, with the increasingly complex network security environment While enjoying the openness of the Internet, we have to be alert to all kinds of dangers lurking behind the huge Internet network, and guard against pervasive snooping and theft of the core data of the organization.

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