IP Addressing and Subnetting - Practical Approach

Udemy – IP Addressing and Subnetting – Practical Approach

IP Addressing and Subnetting – Practical Approach

IP Addresses and Subnetting Explained in a Simple Way! You Can Learn Udemy – Advanced Python Programming Build 10 OOP Applications


What you’ll learn

  • What is IP address, IPv4 address format, public vs private IP addressess. What are A, B, C, D and E classes? What is CIDR? What is subnetting?
  • Why subnetting? How to subnet C, B and A class networks? How to divide class C, B and A networks into 2, 4, 8 and 16 subnets?
  • How to divide networks on the basis of number of hosts required per subnet?
  • Fixed Length Subnet Mask (FLSM). Variable Length Subnet Mask (VLSM). How to perform VLSM?


  • None


If we want to construct 100 storey building, foundation should be very strong. Similarly, If you want to enter into networking field, fundamentals of IP Addressing and Subnetting should be crystal clear to you. This course is designed to make your IP Addressing and Subnetting fundamentals very strong.

In real life, if we want to communicate with someone, we need a phone, it could be landline or mobile. In addition we also need one number, which should be unique, then only we will be able to communicate. Same way if we want 2 or more than 2 systems to communicate, we need unique numbers for the systems, these numbers are called IP addresses. The IP addresses are of two types,  IPv4 (32 bit) and IPv6 (128 bit). But In this course, our focus will be on 32 bit IPv4.

IP Addressing and Subnetting is the main ingredient of networking. Understanding and mastering it is going to pay rich dividends to you.

We are going to cover:

* What is IP Address

* IP Address Format

* IP Address Classes

* What is Gateway/Router

* Public/Private IP Address

* What is Subnetting

* Criteria For Creating Subnets

* Fixed Length Subnet Mask (FLSM)

* Variable Length Subnet Mask (VLSM)


* Why Subnetting

* How to Subnet C Class Network

* How to Subnet B Class Network

* How to Subnet A Class Network

* How to Perform VLSM

* Class A, B, C Subnetting Demo

In real life, to deal with certain things, we have to sometimes use carrot  and stick  policy. In this course, we are going to follow the same policy. Please do not get afraid. For me, Carrot (means Practicals) and Stick (means Theory). This course includes both theory and practicals.

Lots of material has been provided with this course for your reference. For properly understanding routing and subnetting, We have also created labs on FLSM, VLSM using Packet Tracer and provided lab files along with the course.  The course includes lots of examples on Class C, Class B and Class A subnetting. Two methods of creating subnets has been covered. One detailed method and other shortcut method of subnetting has been covered. Customized diagrams and labs has been created to understand IP addressing and subnetting in simple and practical way.

Who this course is for:

  • For anybody who wants to learn IP addressing and Subnetting
  • For anybody who wants to enter into networking
  • Persons preparing for networking/security certifications
  • For anybody who wants to enter into DevOps

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