Introduction - If you have any usage issues, please Google them yourself
Personal firewall core technology is intercepted packet through the SPI interface to the network service provider of data packets (Service Provider Interface) can be intercepted to visit the most comprehensive access to the process of network information. A fully functional personal firewall system is not only able to intercept packets, but also be able to resolve the agreement, support custom control rules and logging network traffic conditions at any time. The project follows a full realization of the above specification SPI function, gives a personal firewall under Windows system implementation in the process of analysis of technical points.