大型医院盗用IP地址主机准确快速查找方法研究

The Method Study of Looking up Host Embezzling IP Address Accurately and Rapidly in Large-scale Hospital

目的:查找IP地址盗用主机。方法:利用交换机ARP缓存表中记录的IP地址和MAC地址,沿着非法主机发送帧的链路准确快速地找到非法主机。结果:该方法应用到医院医疗网,能够准确查找到非法主机,平均耗时1.43秒。结论:该方法能够有效阻止IP地址盗用行为,维护网络正常运行。

Objective：Looking up the host computer that embezzles IP address. Methods：By using the IP address and MAC address in the ARP cache tables of the Switch, illegal host can be located rapidly and accurately through the frame transmitting data link. Results：Practical application of the this method in the medical network system of our hospital shows that locating illegal host takes 1.42 second on average. Conclusion：Our Method can prevent IP address embezzlement effectively and keep the normal operation of network.