Research of Information Protection System of Corporate Network Based on GNS3

The simulation model of the corporate network protection system based on GNS3 is constructed. The GNS3 program is a graphical network emulator that allows to simulate a virtual network of more than 20 different manufacturers on a local computer, attach a virtual network to the real network. Corporate network information protection system includes Gateway, Firewall, Digital Signature Verifier and Logger services. SQL Injection and Cross-site Scripting threat protection are implemented. Digital Signature Verification provides an additional layer of information security. The stress testing conducted by the Vega (Kali Linux) program showed that the system is extremely resistant to SQL Injection and Cross-site scripting attacks. The simulation model of the corporate network protection system based on GNS3 is developed using the minimum size of the digital signature to ensure a given level of stability.