充分发挥子网掩码的功能  

To Bring Subnet Mask's Function in to Full Play

作　　者：侯光奎[1] HOU Guang-kui　

机构地区：[1]河北沧州师专,计算机中心,河北,沧州,061001

出　　处：《电脑知识与技术（过刊）》2007年第14期357-358,共2页Computer Knowledge and Technology

摘　　要：在机关单位的局域网中通过设置子网掩码来实现计算机之间的通信与屏蔽是经常需要解决的问题,例如A、B、C三台计算机,要求A能和B通信,A能和C通信,B和C不能通信.然而在B类网中简单的把所有计算机的子网掩码设置成255.255.0.0,在C类网中简单的把所有计算机的子网掩码设置成255.255.255.0是不能达到目的的.当设定了IP地址以后,怎样设置子网掩码才能充分发挥子网掩码的功能达到计算机之间通信与屏蔽的目的,是文章主要阐明的内容.In the LAN of a unit,in order to realize the communication and screen among computers,people usually design subnet mask to meet the need of communication and screen.For example,computer A,computer B,computer C.We need 'A' can communication with 'B' and 'C',but 'B' cannot communication with 'C'.However,we will can not to achieve the goal if we simply design all the computer's subnet masks as 255.255.0.0(in B kind of net) or we simply design all the computer's subnet masks as 255.255.255.0(in C kind of net).After we design an IP address,how to design subnet mask can we exert subnet mask's function complete to meet the need of computer's communication or screen is the main issue of the article.

关 键 词：局域网 子网掩码 通信与屏蔽 

分 类 号：TP393[自动化与计算机技术—计算机应用技术;自动化与计算机技术—计算机科学与技术]