Subnetting Made Super Simple
3.9 (12 ratings)
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Subnetting Made Super Simple

Subnetting does not have to be as hard as most make it out to be. Start from the beginning and take it step by step.
3.9 (12 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
868 students enrolled
Created by Linda Roeder
Last updated 12/2013
Current price: $10 Original price: $20 Discount: 50% off
5 hours left at this price!
30-Day Money-Back Guarantee
  • 1.5 hours on-demand video
  • 4 Supplemental Resources
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
What Will I Learn?
  • Learn to read and create binary numbers from 0 thru 255
  • Learn to read and create hexadecimal numbers from 0 through 9 and A through F
  • Discover the difference between Classful and Classless networking
  • How to subnet using A, B, and C networks
  • Find out how to subnet with both IPv4 and IPv6
  • Save IPv4 addresses using VLSM
View Curriculum
  • Basic knowledge of computer networking.
  • Basic math skills

Whether you're just starting to learn subnetting or have been struggling with it for awhile, this guide will show you the easy way to learn to it and have you subnetting like a pro in no time. Starting with how to read binary numbers and IP addresses, you will then be walked through the process of breaking them down and creating any kind of network.

Who is the target audience?
  • People studying for CCNA or CCENT / 100-101 ICND1 Exams
  • Networking professional who wants to learn to create subnets
  • Anyone else who wants to learn to subnet
Compare to Other Subnetting Courses
Curriculum For This Course
16 Lectures
Just the Basics
4 Lectures 34:29

Learn to use the binary numbers that you will need when subnetting. Convert binary numbers to decimal numbers and back again. Step by step format to make it easy to follow along.

Basic Binary

IP addresses used to be broken down into classes. Learn about IP address classification and how it's used.

Classful IP Addressing

There is a second part to an IP address known as a subnet mask. Find out how the subnet masks that go with your classful IP addresses.

Preview 07:54
IPv4 Subnetting
3 Lectures 33:03

Moving onto more modern IPv4 subnetting. You'll be learning about VLSM and CIDR which are the backbone of subnetting. Once you understand this, you'll be able to conquor subnetting.

VLSM / CIDR / Route Summarization

Understanding the math behind the subnetting is important if you want to make sure you always get your subnetting right. This will walk you through how the math works with three very different examples.

The Numbers Behind Subnetting

Now that you understand the way subnetting works, I'm going to show you something that will make your life a little easier.

Subnetting the Easy Way
IPv4 Quizzes - Test Your Knowledge
0 Lectures 00:00

Get out your calculator or pen and get ready to practice converting binary numbers to digital numbers and back again.

Practicing Binary Numbers
20 questions

The first 10 questions will have you deciding whether an IP address is Class A, B, or C. The Next 10 will ask whether the IP address is in a reserved range or not.

Classes and Reserved IP Addresses
20 questions

This will test how well you remember your powers of 2.

Powers of 2
16 questions

10 question quiz to make sure you understand slash addressing and route summarization.

CIDR and Route Summarization
10 questions

These are the same questions from the subnetting videos, but don't cheat, see if you can come up with the answers on your own this time.

Subnetting using VLSM
7 questions

Just a little extra to make sure you understand the numbers behind subnetting.

Taking bits, Counting spaces
6 questions
Subnetting IPv6
4 Lectures 15:18

Learn to read and write hexadecimal numbers so you can subnet in IPv6.

Hexadecimal Numbers

IPv6 addresses are very long, but there are ways to shorten them.

Summarize IPv6 Addresses

A prefix length is similar to the IPv4 subnet mask, learn how to use it.

Preview 03:26

Learn how to do basic IPv6 subnetting. The different parts of the IPv6 address are discussed, and then you're shown how to break it down into subnets and host IDs.

Subnetting IPv6 Addresses
Conclusion and Extras
5 Lectures 01:46

When you're finished learning subnetting and think you really have a thorough understanding, you're ready to move onto more advanced CCNA training. Here are my recommendations for CCNA training courses for you here on Udemy.

What to Do Next
1 page

Charts for your use as you're going through the IPv4 section of this course.

IPv4 Charts
1 page

Charts to use while your working through the VLSM section of this course.

VLSM Charts
2 pages

Charts to help as you work through the IPv6 section of this course.

IPv6 Charts
1 page
About the Instructor
Linda Roeder
3.9 Average rating
12 Reviews
868 Students
1 Course
IT Professional

Linda has a Bachelor degree in both IT and Accounting and currently works in the IT industry. Since 1998 she has also worked as an online writer for companies such as and By putting all her skills together from her accounting (math), IT (computers), and online writing (educating), she has designed a course for beginners on subnetting and hopes to create more courses in the future.