利用win2k里的“netsend”*消息，可以指定一个起始的ip和一个结束的ip，对这个ip段内所有电脑发送消息。-use of the "netsend" mass news you can specify a threshold of the ip and an end to the ip to the ip of all the computer messaging.

通过底层UDP协议来实现netsend功能的程序，可实现区域网内消息广播，以及发送地址伪造功能。-through the bottom UDP protocol to achieve netsend function procedures, can be achieved within a regional network news broadcast, and forged addresses this function.