随着信息时代的来临,越来越多的机关、企业和学校纷纷组建网络,并且接入Internet。在建设网络的过程中,必需处理IP地址的申请与IP地址在单位内部的分配问题,而子网掩码的设置是内部分配IP地址中非常重要的一个环节。许多网络管理人员在IP地址分配的问题上总会遇到这样或那样的问题。实际上,只要在子网掩码上做一些小动作,就可以做到既节约IP地址资源,又提高网络寻址效率。下面我们用实例为说明。 With the advent of the information age, more and more agencies, enterprises and schools have set up networks and have access to the Internet. In the process of building a network, you must deal with the IP address of the application and IP address allocation within the unit, and the setting of the subnet mask is an important part of the internal allocation of IP addresses. Many network managers have one or more problems with IP address assignment. In fact, as long as the subnet mask to do some tricks, you can do both to save IP address resources, but also improve the efficiency of network addressing. Below we use examples for illustration.