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How to solve ANY Subnetting Problems in 60 seconds or less - Subnetting Mastery - Part 3 of 7
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- Опубліковано 13 сер 2024
- This is Video 3, and the cornerstone, of the Subnetting Mastery video series. In this video, we will show you how to use the Subnetting Cheat Sheet to solve for all seven attributes of Subnetting: Network ID, Broadcast IP, First Host IP, Last Host IP, Number of IP Addresses, Next Network, and CIDR to Subnet Mask conversions.
Each of these attributes were defined in Video 1 of the series. EVERY Subnetting problem you encounter is simply asking you to solve for one or more of these seven attributes. In this video, we'll show you how to solve for all seven in 60 seconds or less.
0:00 - Start
0:14 - Intro
0:44 - Example 1 - 10.1.1.55 /28
3:21 - Example 2 - 10.1.1.27 /29
5:24 - Outro
www.practicalnetworking.net
====
What if there were a single video series that could make you a Subnetting Master? What if that video series were available for free, for everyone?
Look no further. This is it. This video series will make you a Subnetting Pro.
Part 1:
• What is Subnetting? - ...
Part 2:
• Drawing the Cheat Shee...
Part 3:
(scroll up)
Part 4:
• Practice Examples - Su...
Part 5:
• Time-Saving Tricks for...
Part 6:
• Subnetting in the /17 ...
Part 7:
• Subnetting in the /1 -...
FLSM and VLSM - Part 1:
• Fixed-Length Subnet Ma...
FLSM and VLSM - Part 2:
• Variable-Length Subnet...
After you've watched the full series... Practice solving Subnetting problems here: SubnetIPv4.com
#subnetting #networking #ccna
All the videos in the series are available here:
www.practicalnetworking.net/stand-alone/subnetting-mastery/
Want to learn the Fundamentals of Networking?
www.practicalnetworking.net/index/networking-fundamentals-how-data-moves-through-the-internet/
Studying for the CCNA? Here are free resources to help you learn:
www.practicalnetworking.net/index/ccna/
If you enjoyed this content, don't forget to show your support by liking, subscribing, and sharing this content amongst your peers. That would really help me out. Thank you!
how much did you increase the group size to get 48 bruh
You're a real hero. I've been stressing on subnetting so hard, and there are so many methods to it that I just got lost. But this brought me to a comfortable equilibrium
Happy to hear that, Neight. =)
I was stuck in the same loop as well. I had given up until God put this video in my algorithm. Thank you for these lessons. You are helping more people than you know.
"brought me to a comfortable equilibrium" Is an eloquent and accurate statement
I've been watching almost six tutorial videos for subnetting, and none of them get my brain. However, your video tutorial with 6 minutes and 10 seconds helped me a lot more than those 10 minute video tutorials.
THANK YOU, SENSEI!
This is more than just a free lesson. I really thank you for your time and effort for explaining in simple way. God bless you sir.
I never bother to comment, but this is so worth my time to do so. Your definitions are clear, precise instructions on how to navigate subnetting. Just brilliant. Cannot thank you enough.
This video explained what a two hour video could not. Thank you. The simple cheat sheet is genius.
OMG!!! this is sooo awesome!! 8 years into networking and today is the day i can proudly say i know how do do subnetting properly.
Fantastic, glad it finally clicked, and I'm thrilled that this content helped =). Thank you for supporting the channel.
You sir are a godsend. Not only is this a quick and easy method to get the 7 attributes, it also made all the concepts click with me too! Thank you!
Glad this helped, Adam =). You're welcome!
Best Subnetting Series!!! I have watched them all.
This is just outstanding! Thank you for teaching this wonderful method. Subnetting looks so much easier now. As people say "Not all heroes wear capes". Thanks once again :)
Thanks for the kind words, Prashanth =). You're very welcome!
wow, FINALLY i understand subnetting.... this is by far the best and most simple method i have seen. Thanks so much got my network+ exam on Tuesday !
Fantastic! Happy to hear that. Good luck with your Net+ exam!
You don't even know how great teacher you are
Thank you for the kind words, Samuel =)
Best subnetting video out there , Thank you my man
Thanks for the kind words =). Tell your friends about this series ;)
Best subnetting explanation I’ve ever seen. This has changed everything for me
Glad to hear it =).
This is the BEST series I've seen on this topic. Took a networking course last year and did well but subnetting was the one topic that hadnt clicked till now. Thanks.
Awesome JD! So glad you enjoyed it and thank you for the kind words =). I'm releasing the first part of the FLSM/VLSM video next week. Stay tuned!
thank you so much for this series... i said it before in another vid but seriously, this is by far the best series for leaning subnetting!!!! the way you visualize the examples is awesome
It's still nice to hear ;) Thanks again, Alex!
You are amazing. I was so frustrated listening to so many explanations of this, and yet, this is all anyone will ever need to understand subnetting. You are a networking Demi-God
OMG i was thinking I would never get this. I went through a ton of videos and could not grasp it. You explained it so well. Thanks!!
Glad to hear, Khris =). Cheers!
Could you do me a favor? Do you mind sharing this video on Linked In, Reddit, Facebook, or any other social media you use? As an independent creator, that would be an _enormous_ help, and I would appreciate it _greatly_ .
Now that you know how to solve all seven attributes, it is time to test yourself! Try to solve all seven attributes for the IP address and Subnet Mask assigned to your computer.
Use the command `ipconfig` on Windows, or `ifconfig` on Linux/Mac, or look at the Wifi Settings on your mobile device. You'll find an IP Address and Subnet Mask for your current internet connection. Try to calculate all seven attributes for your IP network.
More details on how to find your IP address on all devices here:
www.howtogeek.com/236838/how-to-find-any-devices-ip-address-mac-address-and-other-network-connection-details/
If the IP address is 192.168.0.11 and the subnet 255.255.255.0, your cheat sheet indicates that's a /32 and group size 1, but all the calculations appear to be wrong, and it should actually be /24 and calculated on the 3rd octet. What am I understanding wrong?
@@ytfamily000 You're in the wrong Octet. The /24 is a group size of 1, but in the *3rd Octet*. Video 6 and 7 in this series explain it =) Hope it helps!
@@PracticalNetworking It does help, and it's what I thought. I was (wrongly) presuming that since you asked the question in this "4th octet" video, it was related to that. My bad. Golden rule: follow your chart no matter what? :)
@@ytfamily000 Exactly =)
@@PracticalNetworking Hi again. Just a thought. So if the subnet is 255.255.255.0, how should I know I should be looking at the 3rd octet and a /24 and not the 4th octet? Thank you again for the series and taking the time to reply to comments two years later! :)
I am amazed! You have explained a binary math problem without ever mentioning binary math. Whenever I tried to explain the terminology to someone I have lost them if not by mentioning the binary system, then certainly when I start the story about the four 8-bit registers and weight of each position. Essentially I have done in my head that what your cheatsheet does, but without ever writing it down I did not realize that someone without understanding binary could just remember how to write the table and use the table. Excellent video, I've subscribed.
Thanks for the kind words and for supporting the channel =), Glad you enjoyed this video !
Finally a video that makes sense about subnets! Thank you for explanation.
I never comment anywhere but your technique just awesome..... thank you
You are simply the best man thank you saved me from my Final exam
This is my best video of the year in youtube. You really simplified my greatest problem in CCNA , which is subnetting. Thanks greats
You're very welcome! Subnetting is everyone's first major hurdle with the CCNA =)
Thank you so much! I tried watching many explanation videos and they confused me. In fact they made it worse for me. After watching your video combined with my basic knowledge I've turned into a subnetting problem solving machine!
Crush that subnetting as expected , all the videos on this channel is like a cheat sheet … def help me save time.
I wasn't sure if I would EVER learn this concept or not until I FINALLY watched this--thank you so much!
Hi Benjy! So glad you enjoyed the videos =) Good luck with your subnetting journey!
I can't thank you enough! I've told all the class about your videos, but I don't think it's enough.
Thank for your support and helping me get more eyes on these videos =)
Finally, I learned how to subnet Class A, B, C. After many UA-cam videos later, Yours have to be the best out there. Thank you so much!!!
You're welcome =) Glad you enjoyed it!
This is fantastic! The best "cheat sheet" guide I've found. Easy and comprehensive. Thanks! :)
You're welcome! Glad you liked it =)
This is good for VLSM- what about classfull?
Finally after watch more than 500 videos on internet,,, got the answer of how to find broadcast id ,,,,thanks a ton
Hi Satish, glad you enjoyed the video and learned a new skill =)
THANK YOU SO, SO MUCH!!! No matter how many ways my professors showed me subnetting, I just couldn't get it! Thanks to you, I'm now a subnetting guru!!! 😂☺️👏
Thank you!!!! You are the GOAT! I've been doing this for a while, and I MUST say, you have finally cracked the code for subnetting. I highly approve of this video for anyone starting their networking/cyber/IT career. Much thanks.
BRO, you're the G.O.A.T.!! Hands down best subnetting video out there.
Thank you, Lawcup =) Glad you enjoyed it!
If you're willing, I'm sure you have coworkers or classmates that would also benefit from watching this series. Sharing the links would be greatly appreciated.
Wow....just wow. So many methods out there, and this one clicked instantly. I'm not new to IT, but I've intentionally avoided subnets and IPs. THANK YOU!!!!
This is absolutely fantastic, I still have to go through /1 - /24 but this is insane I feel for the ones who went for the high views videos and missed this, I will share this with my class mates. absolutely insane.
You should have a cash app or anything. just told my girlfriend I'd gladly donate to you. I will comment as I progress on your videos. sheesh.
If you know how I can get more visibility on this series, I'm all ears =). Thank you for sharing it w/ your class mates.
I look forward to the rest of your comments in the other videos =)
I have course you can buy at classes.pracnet.net. The NAT course is free, but there is a $10 donation option if you're inclined. (but by all means, no pressure).
It can't get anymore simple than this. Thank you soo much howtobasic!
The Best explanation! Thank you very much for putting this on UA-cam!
You're very welcome, Sam!
This is the greatest video about subnetting I've ever watched, thank you so much ❤
I hold a Master's in Computer Science and have over 10 years of industry experience. Despite reading numerous books and spending hours on network course videos, I always felt like I couldn't fully grasp everything. Today, that struggle is over. I FINALLY GET IT. This is the best material I've ever encountered. THANK YOU!
This was a resource that is given for ITN/CCNA1 students for assistance for IS Tech training in the CF. This definitely helped me for the final exam ans VLSM! Onwards to Switching and Routing!! Thanks Practical Networking!!
Tell me more... you were given this as an assignment? Or simply supplementary resources for Subnetting?
Either way, glad you've enjoyed it and found it helpful =)
Exactly what I was looking for! Your explanations and examples are outstanding! Thanks for putting this together
thank you for the content . i started my class in the IT 2 years ago and was still don't unterstand how subnetting work but since i got in touch with you video , i'm mastering it now !! i'm out here explain friend how it work and for real i'm changing congirutation of my network in my apartment🙂 to test all this knowledge. Best Content i have to say it louder 🔊 🔊
Amazing! Thanks so much for the time and effort you've put into these lessons. I'm new to networking, and thanks to you, I'm picking it up so quickly :)))
You're very welcome!
Thanks so much for this, the way you explain the cheat sheet method is the best I have seen anywhere.
Thank you, Madoc. Glad you enjoyed it =)
You are a very nice teacher. Thanks a lot for a "human-oriented" explanation.
Thanks Ruben ;) I appreciate the kind words.
Thanks! You explained this so well. Easy and right to the point.
Thank you for the smartest subnetting formula❤
You're welcome =)
May god continue to bless you young man... i asked all of my coworkers and all i got was ("I bEeN DuMpEd ThAt") (one of them just passed sec plus with a high 700 yesterday)
This is a great teacher !!!!!!!!!!!!
Easy-to-digest tutorial...same as the comments below, of all the videos I've watched, even from Linkedln Learning, this one really made me understand Subnetting better....thank you so much!!!
Glad it helped, Andro. =)
5 years later and this helped me create the ultimate cheat sheet to use for my CCNA this Friday! Thank you so much.
Best video on subnets hands down
one word.. insane. You're an angel.
That's amazing. It's so simple & straight forward. Big old thumbs up guys. Cheers.
Cheers!
OMG i could finally do the subnetting in IPv4, this is an amazing video!!!
simply amazing. that's a game changer for me. really thankful
You're welcome !
This is pure genius. Thank you so much for uploading these videos.
This was the video that got through to me and helped me to understand subnetting. Thank you Practical Networking for this invaluable learning resource!
Glad you enjoyed it, Jon. Have you heard about the live stream this Thursday? ua-cam.com/video/2i_2za40vZg/v-deo.html
@@PracticalNetworking it's a little late for me live, but will catch it after its streamed. Thanks!
Wow thank you so much. Literally finding it so easy to subnet now. You're a blessing!
Brilliant! Happy to hear it ^_^
When I was in university in 2016, I was taught networking by a teacher, but don't tell me I understand it, I hate networking at all, I switched to programming, Mansha Allah, now I understand it.
but now i have got a simple explanation if i thought it was so easy i would have already learned it thank you again sir.
Glad you enjoyed it, Somali =)
@@PracticalNetworking I received this Channel a few months ago and since then I have benefited more than I can summarize in this comment.
I teach my little kids and I copy your own and use them to give you an understanding and it worked for me I can't thank you enough, but as usual I say thank you very much.
@@pss_crs Just now seeing this. Thanks for the kind note, Somali =). It's a thrill to hear you have used some of this content to teach your children =).
@@PracticalNetworking Thanks again for the effort and time you sacrificed for us.
Hey there any VLSM is on the way at all?
Hi Sunny. I might make an appendix after Video 7 that covers VLSM and Binary. Haven't decided. Is that something people want? (like Sunny's comment if so)
Update: VLSM videos have released:
ua-cam.com/video/F05sDLXOFh8/v-deo.html
ua-cam.com/video/amKyfbg5G2Q/v-deo.html
Sir, you are the greatest hero on earth.
Quick tip for those learning, you can add the # of available networks per mask size /CIDR, by adding another row above that 'doubles' in each column beginning with '2' above the 128 in the group size row to see the number of available networks that mask allows. Hope that helps anyone. Ed obviously has done a tremendous job; I just figured I'd add something from the cheat sheet my instructor used in school (if Ed has no objections). And the '2' would go in the 128 bits column in the relevant octet.
By all means, share knowledge =)
@Reginald Barclay i'd like to know that too - any ideas?
@@vicki-annthornton8330 and I was thinking about this while watching the video, too! What will happen? Especially given that we also have to subtract 2
Great explanation, I am finally getting ipv4 :)
Awesome =)
Wow. Just Brilliant! I thought I knew all about subnet ting but this makes me rethink.
Glad you enjoyed it, Abhishek =)
First video I have seen without a dislike! Thank you!
You're welcome! =)
I've been banging my head for so long trying to understand this, and this one video just made it so easy
Genius! FINALLY! A method that clicks! Thanks a lot i was stressing so hard with subnets.
Outstanding! I have watched too many videos and this is the only one that really helped me. Thank you!
Thaaaaaaaank you so so so much. I´ve watched pretty much every video on subnetting but your´s was an eye opener!!!!!!!! and seeing other comments im not the only one!!!
Wish that all teachers explained subjects like this...
Me too!
;)
you're a champion, these clips are a godsend...thank you
Glad these are helping =). You're welcome !
You are my network hero. Awesome work !!!!
Glad you liked this one too, Sohel =)
Thank you for helping me understand subnetting, Ed. Much appreciated.
This is absolutely fantastic and has helped me a lot, thank you!!!
Nice video! I was stuck with subnetting and the cheat sheet works like a charm.
Glad to hear it =)
OH MY GOD! THANK YOU SO MUCH FOR THIS! I will forever love you for this!
I am taking my Network+ exam tomorrow and literally this saved me so much time!
Glad to hear it =). Good luck with your exam!
These videos will also help you:
ua-cam.com/play/PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi.html
@@PracticalNetworking Thank you! Unfortunately I failed the exam with a 698 :(
I just bought another voucher to take the exam again, so i'm gonna study up using these videos and pass this exam!
Thank you!
@@Darkhalo314 So close! You'll definitely hit it next time.
@@PracticalNetworking Thank you! I was so upset after working so hard for over a year to take this exam. That was my first try at any IT exam coming straight out of college last year, so I guess I didn't do too bad. I will definitely do better next time! I know what I need to study and I'm going to get my certification next go round. Currently i'm practicing again using your videos and I will schedule my 2nd attempt soon.
@@Darkhalo314 Good luck with the next attempt. I think everyone fails a certification exam at some point. I've definitely failed a few in my day =).
Bro you are a savior! I am preparing myself to take the CCNA cert and this far all the previous concepts seemed quite easy, however I have been struggling with subnetting for two days lol and you have just wiped out all my doubts with this table in 3 minutes!
This was a fantastic explanation. Thank you very much
Glad you enjoyed it, Jack. ;)
good content. It's helps allot in my networking class I have at Idaho State University. keep up the good work. :)
Literally after watching 2 udemy courses on this topic and countless UA-cam videos i finally understand it. Thank you!!
You're very welcome!
I'm studying within the netacad right now. My stress and anxiety have been on a rampage. This series of videos tames it a great deal. Thank you!
This is so much better than doing it manually.
Agreed =)
I personally found this process easier than professor Messers subnetting video.
I think so too =).
You are a life saver! This is by far the best method I've found for subnetting. Thank you!
This was very helpful, thank you.
Best helpful method of all- thank you!❤️❤️❤️❤️
Awesome explination, simple and concise, like all your videos! This will help me a lot both for my pentesting hobby, as well as networking in school.
Awesome! Glad to hear it, Lanasso. PS: If you're interested in Pen Testing, you might enjoy my TLS course: www.practicalnetworking.net/announcement/looking-for-reviewers-for-my-tls-ssl-deep-dive-course/
i've been struggling for quite some time, but thx to ur video it made subnetting easy for me.
sub and like for sure :)
after trying messer and dion’s method, i’m surprised this isn’t the default. its so much easier and makes much more sense exam wise.
wish me luck Network+ is scheduled for next Sunday!
Good luck with the Net+ You got this!
omg! bless your heart. thank u so much for this. I feel like an expert on subnetting now 😅👍🏽
This is fucking amazing! Absolutely best description I've ever seen... Easy!
You should’ve made this ALL one video. Having to switch between 2 min vids and look up the next one IS A PAIN IN THE ARSE
Sorry you feel that way. Have you tried viewing them within the Playlist? It will auto-play the next video in order:
ua-cam.com/play/PLIFyRwBY_4bQUE4IB5c4VPRyDoLgOdExE.html
GOD level teaching 🙏
Thanks you have made this so much easier.
This is so usefull and save my time, thanks alot
بارك الله فيك, الله يرحم والديك
Absolutely INCREDIBLE. Thank you so much.
This is a life saving video😭
=) Glad you enjoyed it, Geethma !
Great. kudos to you .Thanks a lot . saved a lot of time.
You're welcome, Vijay.