DEVICE FOR DIFFERENTIATING ACCESS BETWEEN TWO DATA TRANSMISSION NETWORKS IN AN IP PROTOCOL EMBODIED IN THE FORM OF AN INTERNET OPERATING SYSTEMLESS-SCREEN (VARIANTS)

摘要

The invention relates to protecting network devices and a computers against unauthorised access and intervention from the outside into the work of operating systems of network devices and computers. Said invention makes it possible to produce a securely protected reliable Internet screen. The inventive device for differentiating the access between two data transmission networks in an IP protocol consists of two network interfaces and a filtration module between the input output controllers thereof. The filtration module is embodied in the form of an operating systemless-computing machine which is provided with ports for connecting to said controllers, a comparison unit, a template collection memory unit and an input output interface for communicating with an external programmer. In the other embodiments of said device, the filtration module is also devoid of an operating system and consists of a set of electromechanical switches or of the set of electromechanical switches and the memory unit.