Course last updated 2016-04-01
Now more than 1000 students!
No Powerpoints, no animations. With just a pen I will teach You how IP subnetting works. From binary math to subnet sizes and exam-like questions to verify Your achieved knowledge!
Remember! 30 days money-back guarantee with no questions asked. I want you to be satisfied with my course. No Happy - No Pay!
Also, please take advantage of the free previews to see way you will get.
After taking this course, which takes less than one hour, you will never again need a subnet calculator. Subnetting can be done without any online subnetting calculator, all you need is a pen and paper and you will be able to create your own cheat sheet. What is my subnet mask? How many usable addresses in my network? What is the broadcast address? All of these questions will be easy to answer after enrolling this course!
After each lesson there is a quiz that verifies the knowledge you just achieved!
This course is good for anyone that needs to fully understand subnetting, including CCNA students!
2016-01-03 Re-recorded lecture about 24 bits example. Free preview!
2016-04-01 New promo-video
I explain how the binary numbering system works and how to convert between decimal and binary numbers.
Learn how a subnet mask look like in binary. Understand the rules of a valid mask and differentiate those from invalid masks.
Converting binary masks to decimal is not harder than any other binary numbers.
A small quiz to validate what you have just learned about binary subnet masks.
Verify your knowledge of prefix notation by answering a few questions.
Supernetting is the opposite to subnetting. When you supernet you group together multiple subnets in one definition, for example in route summarization.
A short history lesson about classfull netmasks.
Start simple, here we look into how a /24 works and looks like.
We look into a smaller subnet.
What happens when we cut a subnet in halves?
Find out how many usablet addresses there are given a specific subnet or prefix.
A tricky question. Dividing a range in smaller parts gives us multiple networks. How big are they? Where are the borders?
We have specific requirements, lets find the best solution.
How we convert from a specific prefix to its corresponding mask.
I have been working in IT since 1991. My focus the last 15 years has been in Routing&Switching and Security. I have certifications in Cisco (CCNA, CCNP, CCSP) since 2000, also certified Checkpoing CCSA/CCSP and ISC2 CISSP. After 20+ years as an IT consultant I have a broad as well as deep knowledge in TCP/IP, routing, switching and firewalling.