|
所在平台: Udemy |
课程主页: https://www.udemy.com/course/subnetting-for-absolute-beginners/
课程评论：没有评论
Subnetting for Absolute Beginners 课程总结 本课程旨在教授学员关于子网划分（subnetting）的基础知识，特别适合初学者。课程从IPv4地址的基本概念和术语介绍入手，帮助学员建立对网络地址的初步认识。 随后，课程将探讨**有类别寻址（Classful Addressing）**。这将介绍IPv4地址空间如何被划分为五个类别，并重点讲解其中的三个类别。有类别寻址是早期在子网划分出现之前唯一使用的IP地址分配方式。课程还将区分**公有IP地址（Public IP Address）**和**私有IP地址（Private IP Address）**。 接着，课程将深入讲解**子网划分（Subnetting）**，也称为**无类别域间路由选择（Classless Inter-Domain Routing - CIDR）**。学员将学习子网划分的工作原理，包括如何“借用”主机位来创建更多网络，以及由此产生的有效IP地址和网络数量。 课程还将阐述**固定长度子网掩码（Fixed Length Subnet Mask - FLSM）**和**可变长度子网掩码（Variable Length Subnet Mask - VLSM）**之间的区别。VLSM是实现网络优化的一种必要手段，它允许不同的子网拥有不同数量的主机。 为了帮助学员巩固所学知识，课程中穿插了大量的**子网划分示例和测验**。 最后，课程将涵盖一些**杂项主题**，例如如何确定一个设备所属的网络，以及**网关（Gateway）**的重要性。 本课程旨在帮助学员理解和掌握子网划分的核心概念，从而更好地进行网络设计和管理。
In this mini-course, we will learn about subnetting. We will start small, by getting acquainted with the IPv4 address and getting to know the terms. When things are a bit clearer we start dealing with classful addressing. Classful addressing is about dividing the whole IPv4 range into 5 classes and we will be dealing with 3 of them and which was the only solution we used to use in the early days before subnetting. We will see also the private and public IP addresses. The problem is, it wasn't optimized. Then subnetting or classless addressing shows up and we start learning about its way of doing things and walk you thru the necessary steps like, how to borrow bits, how many valid IP addresses and networks will be generated. Then we will see the difference between FLSM and VLSM which is a necessity for more optimization where different subnets have a different number of hosts. Along the way, we will solve subnetting examples and quizzes to help you engage more and try out what you have learned. In the last section we will see some miscellaneous topics like, how would we know to which network this device belongs and the importance of the gateway. I hope you will enjoy this mini-course and get a thing or two from it.
