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子网掩码如何工作?

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  • 子网掩码如何工作?

Posted By: Alsatary | 1 Replies | Last Reply On: May 25, 2017 06:29:23

子网掩码如何工作?

Psychz - Rahul

Votes: 0Posted On: May 25, 2017 06:29:23
 

子网掩码

子网掩码用于定义提供给组织的IP地址块。一个IP地址块被表示为“abcd / n”。
“/ n”被称为CIDR符号。

IP范围的计算 - IP地址之后的“/”符号可用于计算属于该类别的IP地址范围。所有你需要做的是从数字32中减去前缀(由于IP地址是32位数)。将结果作为2的指数,您将获得该范围内的IP数量。

例如,要找到“/ 29”前缀的IP范围,我们从32中减去前缀29,结果3用作2的指数。因此,您获得的IP范围为“2到电源3”,即8个IP。

使用此方法,您将能够计算提供给您的任何IP范围。

有关子网划分和IP块分配的更多信息,请参阅我们的文章。

https://www.psychz.net/client/question/en/what-is-a-subnet-in-an-ip-address.html

https://www.psychz.net/client/question/en/what-is-the-block-size-in-subnetting.html

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