Most IT Engineers Can’t Subnet…here’s why…

Understanding IP subnetting is a vital skill for every IT engineer and yet most don’t know how to do it or go about it completely the wrong way. Once you understand a few simple techniques you can actually easily subnet any IP address in your head. Read on to learn more.

Does this sound familiar?


  • “I have to use a subnet calculator to work it out”
  • “I can’t pass my exams because I am too slow at subnetting”
  • “I keep failing technical interviews because I can’t subnet”
  • “I’m overwhelmed as to where to start”
  • “I worry about looking stupid at work if there is a subnetting fault on the network”


This is where Subnetting Secrets comes in. When I left the police force and went into IT I used to dread subnetting but when I was forced to write some notes to teach a class one day I stumbled across an easy way to subnet. If you can count to eight in your head then you can use my method to:

  • Pass exams with ease
  • Answer technical interview questions with confidence
  • Quickly troubleshoot subnetting issues at work
  • Easily work out a simple subnetting design for your office network
  • and much more…


My name is Paul Browning and since starting my own IT training company in 2002 I’ve helped over 3000 students prepare for their IT exams. Most of them found the technical knowledge understandable but it surprised me to hear that they were struggling with learning how to subnet and worse still, every attempt on the internet and YouTube just seemed to confuse people even more.
The techniques taught on this site have been tried and tested by myself to pass my MCSE, A+, Network+, CCNA, CCNP and many other non-IT exams as well as easily  pass interviews for Cisco and BT. They have been used by many other students to effectively study for and pass their exams also. I know they will help you too.

If you are a member of our Cisco training site then membership is FREE. Just log in to get your access codes.


What’s Included?

Access to the site includes:

  • Over 40 subnetting lessons
  • Network design tips
  • The long and short way to subnet
  • VLSM lessons
  • Wildcard masking tips for access lists and OSPF
  • Over 27 videos on subnetting and design
  • Binary and hex primer
  • Exam style questions
  • How to subnet in your head in seconds
  • and much more…

UPDATE – Subnetting Secrets is now available on If you are an existing customer then please log in as usual. Click on the button below to get access.