局域网环境中ARP欺骗攻击的防范方法

ARP attack and deffnce in lan

ARP欺骗是目前局域网环境中最为常见的黑客攻击手段,其主要目的是盗取用户帐号、篡改网站内容、嵌入恶意代码、发布不良信息、监听传输数据等非法活动。本文结合某单位局域网爆发ARP病毒的实际情况,将ARP协议的工作原理和遭受ARP欺骗后的现象加以分析,并着重讨论了不同网络环境下ARP欺骗的防范方法。

At present, ARP attacks is the most common hacking tools in the local area network environment. Attackers can use ARP attack to distort the information of normal pages which users visit,embed malicious code, publish adverse information,steal user account, sniff the data on the network, and other illegal activities. In this paper, the actual situation of ARP virus outbreak in a local network region as an example is given, what is the working principle of ARP protocol and how to dispose the lo- cal network region suffered ARP attacks are analyed. The method of defending ARP attacks in a variety of network environments is mainly discussed.