Research,Design And Implement Of Personal Firewall

This paper mostly concern design and implement a kind of personal firewall for PC based on Windows operation system which provides host network security.Firstly, this paper introduces technology relating to the topic, expounds the network protocol architecture of Windows, research many kinds of network packet intercepting technology, analysis their merit and shortcoming, and gives a thoroughly overview of network hacking methods and defending ways.Then we expatiates the system design project of personal firewall. Decide that using SPI plus NDIS implement network packet intercept; Divide this system to three module: SPI filter, NDIS filter,user interface; And define the interface of each other. The main data structure is declared also.At the end of this thesis, we detail how to design the core module and discuss the testing result of this software. Aiming at the shortage, we give the reasons and bring forward some valid resolvent.