IP数据包过滤源代码实现，模拟防火墙监控计算机网络通信的IP流量-IP packet filtering the source code to simulate the monitoring computer network traffic firewall IP traffic

网络监控工具 统计网络流量，监控网络数据-Network monitoring tool for statistical network traffic, monitor network data

实现网络防火墙的基本功能，主要包括IP过滤 ，网络访问规则设定，流量监控等。-Network firewall' s basic functions, including IP filtering, network access rule configuration, traffic monitoring and so on.