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子网划分就是把单一的IP网络划分为几个物理网络。划分子网可以提高IP地址的利用率,提高网络的安全性,易于管理网络等。为了寻求划分子网的简易方法,通过对什么是子网以及对子网掩码作用的分析和理解,阐述了划分子网的基本思路,如何确定子网掩码,如何得到网络地址和主机地址,总结了划分子网的简易方法及一般步骤,并用实例进行了说明。从而解决了已知子网数或主机数划分子网的方法。
Subnetting is to divide a single IP network into several physical networks. Subnetting can improve the utilization of IP addresses, improve network security, easy to manage the network and so on. In order to find a simple way to subnet, through the analysis and understanding of what is the subnet and the function of subnet mask, this paper describes the basic idea of subnetting, how to determine the subnet mask, how to get the network address and host address , Summarizes the simple method of subnetting and general steps, and gives examples with examples. This solves the problem of subnetting subnets by the number of known subnets or hosts.