作者: Starodymov Georgij Aleksandrovich , Chikalev Igor Aleksandrovich
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摘要: FIELD: computer engineering.SUBSTANCE: invention relates to engineering and provide information security. System for protecting networks against unauthorized access is an internetwork filter, which included between two so that all communication said limited by filtering rules, wherein filter comprises at least network interfaces clients of a first second networks, it further traffic processing unit, including control device, providing input rules storing on analysis device check conformity incoming with as well switching through are interconnected provides flow allowed blocking prohibited prohibit backhauling any packets except those having features parameters addressing in headers, form part packet corresponding template stored memory request or response parameters, plurality permitted values filter.EFFECT: technical result protection nodes based header message.1 cl, 1 dwg