Subnet Mask - Explained

A subnet mask is a number that resembles an IP address. It reveals how many bits in the IP address are used for the network by masking the network portion of the IP address. This video also does a short lesson on subnetting. Subnetting is breaking down a large network into smaller networks or subnets.

[californiadreams]

In 18 minutes learned more than in the entire Network course. Thank you!

[Christian]

Can't believe I sat 6 hours in school today, failing to understand subnetting and you managed to successfully explain it in just 18 Minutes. Just wow. 👏👏👏

[maggiemaeasmr]

I have my associates in IT and I’m currently working on my bachelors degree in Cybersecurity and information assurance. I cannot explain how much this helped. None of my classes have explained this subject as eloquently as you!!! Thank you💛💛💛💛

[paulg]

As usual, FANTASTIC video. Your commentary combined with the animations really helps me understand whatever topic you are covering.

[randallvargas]

This is the best explanation of what a subnet mask is I've ever heard. Thank you for your content!

[aminam]

Albert Einstein was right, he said: "If you can't explain it simply, you don't understand it well enough!"
this man understands it well that is why everything in his channel is so simple and easy to grasp!
teaching is a talent, the will to give your best, dedicated to your work, ...
there are those who have a good understanding and professionals, but not talented for teaching, some others want to show off, that will ruin everything, that is why sometimes some are not professionals but have teaching talent better than those professionals with better understanding.

[LarryMenta]

You have no idea how much I learned from your videos. I learned more from your channel than actual University clasess, your explanation and visualisation is a thousand miles better than anything I could find in books and courses. Thank you so much!!!

[ank]

In over 30 years of IT, this is the very best explanation of network masks. Thank you very much for the video.

[masontonks]

started a job as an infrastructure technician and you've been carrying me through it lol

[andrewquilpa]

This is some of the best content out there today regarding this topic! Clear, concise, and the visuals are incredibly helpful. I'm honestly surprised this isn't considered "Official CompTIA content" but also grateful it's available free on Youtube!

[keithgipson]

Best subnet explanation I’ve ever seen. Been in IT/OT/IoT for almost 40 years!

[mrtennesseeo]

Hands down this 17:54 minute video gave me 100% clarity in understanding more about the subnet mask and subnetting. Your teaching style and simplistic videos have a tremendous effect! This definitely gives me a boost in preparing for the Network + certification. Thank you!!

[kuldeepsingh-dhet]

I do respect your hard work. Even I could not properly understand this topic in my networking class. But this video is amazing

[jxd]

That was a GREAT explantation ! Every time I struggle on my networking course I come to you for help ! Thanks again for breaking it down my man !

[justinccole]

This helped me understand this so much better! I have been doing the CompTIA A+ training, and this portion of it was EXTREMELY confusing. Thank you for clarifying it all in a simple way for me to understand!

[Stronkbeans]

This short video helped make more sense of this subject than both my college professor and an entire book module discussing it. Thanks a ton for this.

[charlesjackson]

This is the best Subnet Mask tutorial that I've ever had! It's so nice when someone not only understands, but can also teach a discipline.

[danootz]

One of the few tutorials that I've seen that really simplifies the who subnet mask subject matter! Excellent work, as always!

[Ronnock]

I truly appreciate the elegance in your narration and animation. I believe a lot of other Youtuber's have a lot to learn - cut the fluff just enough to be infotaining.

[jeanclaudenduwimana]

I have a degree in computer science, however I never had a chance to completely understand subnet mask the way you did, I'm glad this channels exist to make things easier for everyone. Thank you.