---
title: "一个视频弄懂什么是子网掩码"
description: "用一个视频科普子网掩码的概念，讲解它如何划分 IP 地址中的网络位与主机位，从而区分不同的子网。"
date: 2021-12-14T04:54:41Z
canonical: https://xiaobox.github.io/p/2021-12-14-yi-ge-shi-pin-nong-dong-shen-me-shi-zi-wang-yan-ma/
author: 小盒子
categories: ["杂谈"]
source: http://mp.weixin.qq.com/s?__biz=MzI3Njk5ODg4OQ==&tempkey=MTM2OV9qQllKVk9iRnpVd2xVSUNzc25lbk5MWm9JMUZlYko4QUdJTFRuRFM3SWRaYXR3VDNRR0hJXzN2alBONWJLTlNkLS1MSUlid0tTUDFhVW1HV1lWUGVaZTVmaGVsSUVlNGp3c28tMmVmbUJ6dGhkYlcyZnprTTJLQWZJUVhDTEEwMi05RUl0UzlGTXJvVnZpY2NZS1JJVURCOF9WaWhXZzViYzNPNmF3fn4%3D&chksm=eb6db611dc1a3f07ff1dd7e846dfc786201324daa752752c5f4ae7abc425ac52fdd2eeec76a6#rd
license: CC BY-NC-SA 4.0
license_url: https://creativecommons.org/licenses/by-nc-sa/4.0/
---

# 一个视频弄懂什么是子网掩码