【转】Classful IPv4 addressing definition
Classful addressing definition
| Class | Leading bits |
Size of network number bit field |
Size of rest bit field |
Number of networks |
Addresses per network |
Total addresses in class |
Start address |
End address |
|---|---|---|---|---|---|---|---|---|
| Class A | 0 | 8 | 24 | 128 (27) | 16,777,216 (224) | 2,147,483,648 (231) | 0.0.0.0 | 127.255.255.255 |
| Class B | 10 | 16 | 16 | 16,384 (214) | 65,536 (216) | 1,073,741,824 (230) | 128.0.0.0 | 191.255.255.255 |
| Class C | 110 | 24 | 8 | 2,097,152 (221) | 256 (28) | 536,870,912 (229) | 192.0.0.0 | 223.255.255.255 |
| Class D (multicast) | 1110 | not defined | not defined | not defined | not defined | 268,435,456 (228) | 224.0.0.0 | 239.255.255.255 |
| Class E (reserved) | 1111 | not defined | not defined | not defined | not defined | 268,435,456 (228) | 240.0.0.0 | 255.255.255.255 |
【转】Classful IPv4 addressing definition的更多相关文章
- [Top-Down Approach] Chatper 4 Notes
4.2 Virtual Circuit and Datagram Networks VC Set up connection Exchange data Free the connection The ...
- Configuring Network Configuration-RHEL7
1.查看网络状态systemctl status NetworkManager You can use the systemctl status NetworkManager command to ...
- libvirtsAPI
mongodb远程服务器连接 mongo -uroot -p321 master.puppet.org:27017/admin
- ARM-linux与Ubuntu开发工具NFS及流程
Linux虚拟机的型号是:Ubuntu 12.04 VMware:workstation 14 pro author: Xianghai Ding Date:2019.01.04 板端:Hi35 ...
- linux进阶之nmtui和nmcli配置网络
CentOS7配置网络推荐使用NetworkManager服务(不推荐network服务). 图形化方式:nmtui或Applications->System Tools->Setting ...
- RFC2474 - Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers的双语版
RFC2474 - Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers英文版 ...
- APIPA(Automatic Private IP Addressing,自动专用IP寻址)
APIPA APIPA(Automatic Private IP Addressing,自动专用IP寻址),是一个DHCP故障转移机制.当DHCP服务器出故障时, APIPA在169.254.0.1到 ...
- linux physical and virtual addressing modes
example 1: 特理地址和虚拟地址一致 Physical addressing mode requires no page tables and the CPU does not attempt ...
- Sequelize-nodejs-3-model definition
Model definition模型定义 To define mappings between a model and a table, use the define method.定义模型和表之间的 ...
随机推荐
- Python 画3D图像
绘制一副3D图像 draw3D(X,Y,Z, angle) import numpy as np from matplotlib import pyplot as plt from mpl_toolk ...
- main.js_vue
下载依赖包:cnpm install 或者cnpm i 启动项目:npm run dev vue如何加载main.js 如果你是用vue.js官网提供的脚手架工具并沿用默认配置的话,你执行npm ru ...
- 微信小程序 - 布局练习
1.小程序的布局就多了一个flex布局,其他和之前html没太大区别 ,先看代码: (1)wxml <view class='container'> <view class='sel ...
- vue写后台管理系统问题概述和解决方案
一个不错的Demo; http://xmall.exrick.cn/#/home 源码:https://gitee.com/Exrick/xmall-front/blob/master/src/pag ...
- PHP unset()函数销毁变量
<?php // 销毁单个变量 unset ($var); // 销毁单个数组元素 unset ($arr['a']); // 销毁多个变量 unset ($var1, $var2, $var3 ...
- 记一次http接口格式摸索
有一个需求,需要用到内部通讯工具的一个ERP转发接口,虽然有接口文档,但是对中文的编码格式没有提示,中间几经周折,最后才想起来通过F12查看提供的测试接口发送请求时的数据格式来分析,经过解析中文只有被 ...
- day15(模块引用笔记)
import spam文件名是spam.py,模块名则是spam# 首次导入模块发生?件事# 1. 会产生一个模块的名称空间# 2. 执行文件spam.py,将执行过程中产生的名字都放到模块的名称空间 ...
- tornado 和 djanjo 转义处理对比
tornado tornado默认是转义所有字符,比较安全,但有时候我们的确需要把字符当做html来解析处理,因此我们需要做些处理. 所有的模板输出都已经通过 tornado.escape.xhtml ...
- 面向对象epoll并发
面向对象epoll # -*- coding: utf-8 -*- import socket import selectors import re import sys HTML_ROOT = &q ...
- centos离线安装docker及其它软件包
桌面版本安装 docker可以通过网络安装,但在内网环境,需要进行离线安装. 执行 uname -r 获取操作系统版本号 根据版本号,到docker.com下载docker的离线安装包: Linux版 ...