How to Master Subnetting


Do you need to google for a “subnet calculator” when you want to find out the network size and the IP addresses you can use?

Would you like to know the best practices for subnetting and binary / hexadecimal calculations?

Are you interested to find out how to do binary and subnetting calculations off top of your head so you don’t need a calculator or a piece of paper?

Stop struggling with these calculation questions! Once you read the explanations and do the exercises through this book you’ll be able to do these calculations off the top of your head and you’ll never have to think twice when encountering subnetting questions on any networking exam.

(98 page PDF) Read a sample here

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Chapters in How to Master Subnetting

  • Binary Basics
  • Welcome to Subnetting
  • Subnetting: The beginning
  • Subnetting: The Fast Way
  • Classless Inter-Domain Routing
  • Variable length subnet mask (VLSM)
  • Summarization
  • Hexadecimal calculations
  • Tackling miscellaneous subnetting questions
  • Create your own cheat sheet
How to Master Subnetting is the place to start when you’re ready to get serious about your networking career. It’s time to put the calculator to a rest and learn how to do binary / subnetting calculations off the top of your head.

Read This Book to Answer Questions Like…

How do binary calculations work?

How can I calculate the subnet size and available IP addresses?

What’s the fastest way to calculate subnets?

What is CIDR (Classless Interdomain Routing) ?

What is VLSM (Variable Length Subnet Mask) ?

How should I do hexadecimal calculations?

What’s the best method to calculate subnets on a (Cisco) exam?

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If you’re not happy with your purchase of any of the How to Master books, just let me know within 60 days of buying, and I’ll give you your money back ASAP. No waiting. No questions asked. …No risk!


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“I didn’t feel like a professional every time I had to Google for a subnet calculator…thanks for fixing that problem!”
Michael, GNS3Vault member

“Your books and labs have helped many of my students pass their CCNA and CCNP exams.  ”
William Zambrano, Cisco Instructor,

“The biggest benefit I got from your book is that it saved me a lot of time and frustration. It trims all the fat and unnecessary information and goes straight to explaining in a very clear and concise manner
Talal Haizoun


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