IP地址盗用是指盗用者使用未经授权的IP地址来配置网上的计算机,从而冒充第三方行使网络行为。该行为侵害了网络正常用户的权益,更给网络安全及正常运行带来巨大的负面影响。为更好打击网络犯罪和滥用,本文详细讨论了四种IP盗用的方法和五种防范IP被盗的措施。 IP address theft refers to the use of unauthorized users to steal the Internet IP address of the computer, thereby posing as a third party to exercise network behavior. This action infringes on the rights and interests of the normal users of the network and brings about a tremendous negative impact on network security and normal operation. In order to better combat cybercrime and abuse, this paper discusses in detail four methods of IP embezzlement and five measures to prevent IP stolen.