Introduction - If you have any usage issues, please Google them yourself
This article first introduced the personal firewall development research present situation, VC++6.0 and MFC procedure some technical characteristics, then based on the packet filter personal firewall development carried on the detailed introduction and description.Through this article you can clearly see a common personal firewall development process.In this firewall, users can set their own filtering rules to achieve the filtering of IP addresses, ports and protocols for different sources and different targets.Allows the user to save the current rule as a *.rul file format for import next time.
This firewall consists of the following modules: filter rules add module, filter rules display module, filter rules storage module, file storage module, installation and unloading rules module, IP packet filter driver function module.Users only need to through the main interface menu and buttons can be flexible operation of the firewall, effectively protect the security of the Windows system.