Subnetting Made Easy 

Having my exams tomorrow, this guy taught me everything our teacher tried teaching us for half a year in 30 minutes. You're a lifesaver.

11 years later and this is what I needed for my Network+ Best explanation and process I've found.

The difference in how people think/teach is incredible. THIS guy is clear and concise. Nicely done sir.

I have watched a lot of videos and read a lot of explanations over the last few months. I came across this video and used his method and can honestly say that I understand it now. Thanks for the video!

This has been the best subnetting video ever...truly subnetting was made so easy with this... I was struggling a lot with subnetting but you just nailed it . Thanks a lot

I really don't know how I bumped into this great leacture. The explanation, and technques, is wow! just too clear, such that, i do not have to write anything down before solving any IPV4 question. All I have to say is thank you so much.

YOU ARE THE BEST INSTRUCTOR EVER. THANK YOU FOR SHARING YOUR WISDOM!!!!!!!!!!!!!!

Great video. Explained very well. I've learned more about Sub-netting from this video than the "my computer career" school I attended. Thanks for the video!

This is the most thorough and easy to understand video about subnetting on youtube

What i really can't even begin believe is that people are giving thumbs down to this awesomely "free" tut. Thank you very very much to Russell Hughes, and to SLI for sharing this awesome piece of education.

Thanks so much for creating this video. I have been reading my book multiple times and could not understand what it all meant until I watched this video. You explain where everything comes from. You are a great instructor.

well I knew i found the best video for subnetting when he wrote down the ranges for classes of networks and showed what that means in binary. Every other resource just gave a range of numbers. From there it was just 30 minutes of all these concepts clicking. Thanks for the great video. P.S i kind of want to send you a good eraser.

I've looked through dozens of subnetting videos and this was the first one that clicked for me. Well done!

My new hero on RU-vid and helping finally understand subnetting Class B and A networks.

thank you so much for this video, I am doing Practical Networks at Napier university and the way you explain subnetting make me understand it so much better that our teacher!

This is a good alternate explanation BUT the "magic number" method is even easier to understand from an explanation point of view. This method does provide a few extra points of information about the details of how the addressing is actually working such as address classes but if we are talking about a student learning how to calculate # of nets, # of hosts, net address, broadcast address, host range, and usable addresses, best to use the "magic number" method. Once they are comfortable using "magic number", then this explanation would be a good next step to provide additional detail.

Thank you. I have seen maybe a half dozen ways to do subnetting and the way you showed it actually clicked for me. Thank you!! Yours was the first that I could translate to the next question during my studies and figure it out correctly. I needed to know the why and most were using magic number charts, etc.. but didn't go into full detail of WHY. I have to know why to do the how.

Our teacher gave us a link for this video and this was the easiest way to understand Subnetting! Thank you!

The explanation is straight forward and help me to understand the usable host and network address.I do appreciate the video.You're a winner.

Man this brought it all back. Nice video. I almost lost focus in the end but waited for the last 2 minutes and listened carefully and figured out what you were getting at.

Was struggling for two hours before watching this video, you really made subnetting easy, thnx!

i think you just saved me for my final exam mr. hughes, thank you so much for doing this video!

i just started CCNA and this video saved my sanity. Very well laid out.

Excellent method. Is perfect for beginners. It really made me understand. Congratulations to the teacher, he really explains very well.

Best video about the subnetting. Thank you so much

Bless you Russell. I have been trying to master this for months and no other youtube video nor written tutorial nor my classwork/resources have made me understand it the way you have. The addresses where another octet other than the last one is used for subnetting is something most resources fail to explain. Many thanks from california.

Thank you very much for this awesome video. This by far is the easiest way for me to remember how to subnet.

Thank you for a great video. Like others, I went through many other lectures etc and you're the only person to turn my light bulb on. Thank you again.

Im studying for my CCNA, and this is the easiest explanation other than the one I got in class...Thanks a lot!!

That mapping table you showed was clutch. I have a subnetting test/spanning tree protocol test today and now i feel confident about the subnetting portion. Thanks man

I've watched dozens of subnet masking videos on the net, and this is the only one that ever made sense. Russelll is great. I realize that not all of us learn the same way, and comprehending an instructor is an individual kind of thing, but this video worked for me. I still need practice and to watch it a few more times. But I love how Russell articulates his visual diagrams and really takes things in steps and examples at each level. I love the fact that he doesn't assume. I think it's best to download the video with something like youtube saver for Firefox and watch it on a laptop when you're out at a park relaxed, maybe having a cigar. This was a priceless video. I would actually like to get this video in HD. Would love to take an actual class with this instructor. I live in CA, not sure where he teaches though.

thank you sir, without this video I would have been wandering in the abyss of confusion

All I can say is WTF! I have seen a lot of subnetting lessons and have never seen it explained so well and so easy! Thanks

This guys slide rule is pretty ingenious. Thank you to this instructor.

Been subnetting for years. This is the best method I've ever found. I wish I had it before I took CCNA. Getting ready for CCNP and will use it.

I have an associates degree in network administration, and went through a 48 week network engineer course, and you've made the most sense out of everything and anyone that's ever tried to teach me this. Thanks so much! lol

This is the best explanation over subnetting I've seen so far. Thank you, this really helped me me out.

feel so calm and better than listening in class.

Watching your video really helped make it simple compared to the way my instructor was teaching us. Thank you!

Me too, i watched many videos and this is the right video because it doesn't assume anything. Every number is explained so you will not scratch you head. It's longer but this one really is the good one and worth it Thanks Russell! finally I get it

the best subnetting explanation I've ever seen

I use a sub 30 at work. Being a geek I needed to find out how it actually worked. Rather than my IP just giving me the 2 usable IP addresses and saying apply one to the gateway and one to the the server or what have you. Now im satisfied I know how it works :) TY

This is the best example I've ever seen of subnetting. Thank you!

Very skilfully presented and straight to the point. Thank you very much for the video.

Thank you. Best video/lesson I've watched on this topic so far.

This is the best explanation ever. Thanks a lot for this. Now I understand it so well than before. Many many thanks to you

Great explanation, now I realize why the subnetting labs were wrong. You have cleared up a lot. Thank you. Next time add the CIDR notation for perfection ;-)

Best video so far on understanding subnetting! Great job and thanks!

best tutorial on youtube...bookmarked for reference and in case if i forgot.

"slide-rule"... That's about the first thing I've seen that made sense this week. (am presently suffering through a Net+ prep class online)

Best Explanation I have found on RU-vid...Excellent

Very simple and effective way of teaching subnetting...

This has helped me so much. I am learning to subnet in class, and this approach makes so much sense. You helped me a lot, and i appriciate it.

brilliant, I have been struggling with this for ages now I think it has finally sunk in. Cheers

Best video about subnetting there is on youtube! Helped a lot thanx!

Thanks for the video! I really feel like this has helped me out. I guess the true test will be how I do on the Mid-Term tomorrow lol. I plan on watching it a few more times and sharing it with the rest of the class before the test.

The only easy way I've ever seen. Thank you so much!

This video was very helpful. just started with my ccna path, and i was having a very hard time getting this. after this video i had the "ahha!" moment. thank you!

id like to thank you soooooooooo much because you teach in the best way. i like how you did alot of examples as appose to 1. WISH YOU WERE MY TEACHER

Awesome. Thanks a lot for posting this video and for the detailed explanation. It really helped me understand the calculations.

very very useful video finally i understand subnetting thank you very much sir

Best tutorial in this planet

Very well explained. I always need to go back over the basics after it has been a while. Thanks!

Watched twice and can say......the best video on sub-netting I have watched yet....Good job dude. keep it up. Thanks

Thank you for this informative, easy to follow video, I kinda got the jist of Subnetting from this video.

Best video so far...well done mate!

Wow you rock sir, you really made this easy ad painless. God bless.

Best quick guide I've seen!

Thanks for such a valuable and simplified information

this was alot easier than my last teacher, i didnt know what tha fuck he was talking about but this guy made it simple...

very good lecture. described subnetting in a very easy way to understand. thanks

Thank you for this video! Very clear and detailed explanation, 30 minutes well spent :-D

i wanted to say thank you very much for this video. your breakdown was awesome and it helped me pass my network+.. thank you very much.

Very good step by step presentation. This helped me a lot!

Excellent demonstration, currently studying for my CCNA. This is a much faster method for me!

Thanks for this video, I was having a bit of trouble understanding the concept.

Thank you very much, you are a good teacher!

Thanks you sir and God bless you - you really helped me calculate IP adress

Incredible, thank you so much for this! I'm in Cisco II right now and my Cisco I class was a year ago (I know, I know) so I needed to brush up on subnetting and this made it so clear and simple to me!

This was the easiest explanation so far

You're an excellent teacher. Thanks a lot for doing this!

A video to remember, continue the good work

this is amazing for understanding subnetting

best explanation for subnetting.thanks a lot

You made this so much easier to understand, Thank you!!

Thanks a lot. That put it all in place. I very nearly get it all now.

wow I think I get it now!!!!! You are the best. I will share this with my class.

Thanks for teaching this method. It was very helpful.

I am new in ccna and subnetting in my class not like this. But i really like this one. But for now i need to focus to my teacher. Then in times i will follow this one.

one of the best tutorials

I'm watching in 2020 thank you so much!!

you saved my life. Thank you...thank you...thank you

Great job on this topic.

Really straight forward explanation! Great job!

It's simple but effective to beginner in subnetting like me.. thanks

Thanks, You made subnetting very easy for me. 5 star

thank you so much...!!!!!!!!!! you cleared up so much stuff for me with this video

What a great shortcut, thank you a lot. :)

totally agree, best subneting ever

you really made it easy to understand thanks