该文介绍了ARP地址解析协议的含义和工作原理,并根据ARP协议所存在的安全漏洞,给出了网段内和跨网段ARP欺骗的实现过程。最后,结合网络管理的实际工作,重点介绍了IP地址和MAC地址绑定、交换机端口和MAC地址绑定、VLAN隔离技术等几种能够有效防御ARP欺骗攻击的安全防范策略,并通过实验验证了该安全策略的有效性。 This paper introduces the meaning and working principle of ARP address resolution protocol. According to the security loopholes existing in ARP protocol, this paper presents the realization of ARP spoofing in intranet and inter-network segments. Finally, combined with the actual work of network management, this paper introduces several security strategies that can effectively defend ARP spoofing attacks, such as IP address and MAC address binding, switch port and MAC address binding, and VLAN isolation technology. The effectiveness of the security strategy.