共享以太网：在共享网络环境中，所有的主机都连接到同一条总线并且与其他的主机竞争带宽。这意味着在这样的环境中，发给某个主机的数据包也会被其它所有的机器收到。因此在这样的环境中，任何设置成混杂模式的主机，将可以捕获发送给其它主机的数据包，从而窃听网络上的所有通信。 -Ethernet sharing : sharing network environment, all of the hosts connected to a bus with other mainfr a me competition bandwidth. This means that in such an environment, to a host of data packets will be all other machines received. In such an environment, any set pattern of mixed mainfr a me, will be sent to the capture of other mainfr a me data packets, thereby tapping on the network for all communications.