Firewall based on multiprocessor architecture

A multi-processor and firewall technology, applied in the field of firewalls, can solve problems such as inability to apply, failure of restarting security mechanisms, and increased firewall processing delays, reducing processing time and reducing security threats.
CN109558366AActive Publication Date: 2019-04-02浙江国利网安科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
浙江国利网安科技有限公司
Publication Date
2019-04-02

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Abstract

A firewall based on a multiprocessor architecture comprises a main processor for processing a management flow of the firewall and a coprocessor which is used for carrying out parallel processing on the service flow of the firewall, and the main processor and the coprocessor are independent of each other and communicate with each other through a communication interface. The firewall provided by theinvention adopts a double-processor architecture, the two processors are independent of each other and are in limited communication through the communication interface, and when the main processor isattacked by a network or the main processor cannot work normally, the service processing unit of the coprocessor can still process the service flow normally. Compared with other industrial control firewalls, the firewall disclosed by the invention has the advantages that the reduced processing time reaches several orders of magnitudes, and the 100% throughput is achieved under the conditions of gigabit rate linear speed and 64-byte Ethernet message through the modules such as message deep analysis, basic strategy matching, industrial control protocol function code matching, industrial controlprotocol parameter matching, alarm information uploading and the like.
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Description

technical field

[0001] The invention relates to the technical field of firewalls, in particular to a firewall based on a multi-processor architecture. Background technique

[0002] Hardware-based traditional industrial control firewalls generally adopt several mainstream architectures in terms of hardware: X86, ASIC, NP, MIPS and ARM. Because most of the commonly used operating systems are based on general-purpose operating systems, and the general-purpose operating systems do not fully consider the security of the operating system itself, and the security mechanism is not perfect, resulting in many security loopholes and hidden dangers. For example, firewalls suffer more and more Attacks based on operating system vulnerabilities, backdoor viruses and Trojan horses. It is very difficult to modify the core code of the operating system, and adding various security technologies and protective measures around the operating system without modifying the core code of the operating...

Claims

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