Secret of subnet mask

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  • Опубліковано 9 лют 2025
  • Please support my channel by becoming a Sunny Classroom member. Your support is much appreciated.
    / sunnyclassroom
    !!! Correction note: from 5:09 to 8:09, Computer A's IP address' fourth octet in binary should be "00000010". Sorry about the confusion.
    ----------------
    Every host on a network has IP address and subnet mask. What is subnet mask? Why does a computer on a network need a subnet mask? What does a subnet mask look like? How does a computer knows whether its target computer is local or remote? What is the secret? In this video, you may find all these questions.
    This is my education channel. My topics cover networking, security, programming, and other computer-related materials.
    Please subscribe my channel. Many thanks.

КОМЕНТАРІ • 394

  • @MattCollisson
    @MattCollisson 4 роки тому +125

    I've been a network engineer for 6 years and I've NEVER heard someone explain networking this simply! I understand more than ever haha!

    • @sunnyclassroom24
      @sunnyclassroom24  4 роки тому +18

      Thanks you for watching!

    • @PK-vv6ci
      @PK-vv6ci 3 роки тому +4

      @@sunnyclassroom24 You are the best 😀.

    • @pizzainc6926
      @pizzainc6926 3 роки тому +5

      Because unlike Caucasian, Asian get straight to the point. Fact! Not racism!

    • @pH7screwtube
      @pH7screwtube 3 роки тому +6

      @@pizzainc6926 No..... That is racism. And not anywhere near the truth.
      I have had instructors from all kinds of backgrounds and there are good and bad in all of them. You just showed you are the bad apple of the bunch. I dont care what your skin color is, you reek of racism.

    • @artkorum
      @artkorum 3 роки тому +1

      its even simple with bad english, respect! %)

  • @THATDrGaryButtman
    @THATDrGaryButtman 4 роки тому +21

    This man is brilliant. His knowledge and ability to explain it in a way that is actually understandable is unmatched on UA-cam.

  • @qkcb
    @qkcb 5 років тому +27

    One of many hidden gems on UA-cam!
    Thanks, Sir!

  • @1x1boop28
    @1x1boop28 5 років тому +143

    1:48
    Its like he is giving out gold for free.

  • @bhuvaraga
    @bhuvaraga 4 роки тому +2

    The only video in UA-cam explains what Subnetting is. I have zero knowledge on this subject and understood subnet in one go. Thanks for this video!

  • @kevinmanuel6711
    @kevinmanuel6711 6 років тому +32

    Thanks for the video!!! It is really helpful. The way you present it in Audio and Visual is perfect.
    Audio = Your English is really good, clear pronounciation, the speed is okay.
    Visual = The Animation is cool man. you are really a modern teacher. I found it's not a piece of cake to do that animation.
    The way you teach is really effective. You've made this lesson as simple as possible

  • @elmiramoayedi7653
    @elmiramoayedi7653 4 роки тому +25

    Thank you, what you thought me in 8 minutes I didn't learn in one semester in the university :))

    • @sunnyclassroom24
      @sunnyclassroom24  4 роки тому +5

      Thank for for your compliments!

    • @rl751
      @rl751 4 роки тому +4

      That's how you know that's a great teacher. When they make scary subjects like computer networking seem simple, approachable and make sense to total beginners.

    • @playingforyou9635
      @playingforyou9635 4 роки тому

      Taught me**

  • @jenniferboone83
    @jenniferboone83 4 роки тому +12

    Love this guy! 🤯 I have had a hard time understanding subnetting but today I feel like I can conquer it after watching just 2 of his videos. Well done!!!

  • @veronicaschmidt2659
    @veronicaschmidt2659 6 років тому +79

    I believe this is the simplest way to subnet ever!

    • @sunnyclassroom24
      @sunnyclassroom24  6 років тому +9

      I think so too :)

    • @Rajeshdas-pb7nd
      @Rajeshdas-pb7nd 6 років тому +3

      Sir I wanna ask you something in PC A's ip is 10.1.151.2 and its subnet mask is 255.255.255.0. Shouldn't it be 255.0.0.0 as it is a class A ip address?
      Or is it a classless subnet mask ? Please do clarify

    • @noorrahman866
      @noorrahman866 6 років тому +1

      Hi Sunny Sir, this Noor from Afghanistan and really like this video please share more videos

    • @oz12353
      @oz12353 6 років тому

      love phone and internet hack

    • @hoelefouk
      @hoelefouk 5 років тому +1

      @@sunnyclassroom24 nicely done!!

  • @BeardoComputes
    @BeardoComputes 6 років тому +20

    It finally clicked for me with this video. Great explanation, thank you!

    • @oz12353
      @oz12353 6 років тому

      love phone and internet hack

  • @mindfreaksaad
    @mindfreaksaad 4 роки тому +2

    This is by far the best explanation of subnetting I've come across. Thank you so much Sunny

  • @f3abraham
    @f3abraham 4 роки тому

    Finally a video that explains why subnet mask is needed. Everyone just go directly to the exercises. Thank you very much!!!!

  • @rabbitcreative
    @rabbitcreative 5 років тому +47

    "Because computer A is dumb..." paused and still laughing. :)

  • @harinisrigiri4898
    @harinisrigiri4898 4 роки тому +1

    brilliant explanation!! I have seen a million videos on subnet mask , but only understood it after watching this video

  • @ivarellefsenmentz7446
    @ivarellefsenmentz7446 3 роки тому

    i have been trying to understand subnetting for 2 months, you made me understand it in less than 10 minutes, thank you sir.

  • @zzaarrker
    @zzaarrker 4 роки тому +1

    love this guy he is so smart and he gives you all u need to know in subnet

    • @sunnyclassroom24
      @sunnyclassroom24  4 роки тому +1

      Thank you !

    • @zzaarrker
      @zzaarrker 4 роки тому

      @@sunnyclassroom24 can i contact you on whatsapp. ? 0760700369

  • @TheDigerian
    @TheDigerian 3 роки тому

    This man nailed it. He is a superman. What a teacher you are sunny.. cleared my concepts. Thanks alot

  • @El_Famous_W01f
    @El_Famous_W01f 4 роки тому +1

    Thank you soo much for this video. I couldn’t understand subnet masking to save my life and this video saved me. You are the man. Subscribed!

  • @ximonarcayera6237
    @ximonarcayera6237 4 роки тому

    Watched a ton of long videos and reached this 9min gem and I can say this is definitely the best way to learn subnet mask

  • @jklax
    @jklax 5 років тому +38

    These videos are the best videos I've found on UA-cam in regards to Networks!

    • @sunnyclassroom24
      @sunnyclassroom24  5 років тому

      Thank you very much for your compliment and nice comment, Jay!

    • @ErisTyler
      @ErisTyler 4 роки тому

      No question! Give me the Sunny Method any day! Putting networking in SIMPLE terms is a gift! I'm going to bingewatch all 139 videos this weekend.

  • @anilkommalapati6248
    @anilkommalapati6248 6 років тому +2

    Awesome and in a word GREAT video. I went thru many sites and videos but your videos relates to ssl certs, subnetmasks are outstanding. I can confidently say YOUR VIDEOS ARE THE BEST. The way and style of your explanation on complicate topics can be understood even by toddlers. You are a computer GOD.

  • @hackingnut4164
    @hackingnut4164 3 роки тому

    Network ID and Host ID. Why has this never made any sense until now.... Sunny dude! Finally get it! Thanks!

  • @james400414
    @james400414 4 роки тому

    You are by far the best at simplifying explanations that others make seem difficult. PLEASE keep the videos coming. Thank you!!!!!!

  • @Piano_Castle
    @Piano_Castle 5 місяців тому

    Amazingly clear explanations, and graphics -- this instructor is awesome!

  • @send2gl
    @send2gl 3 роки тому

    That was an excellent explanation. I never quite understood the shorthand version of subnet mask but now understand it clearly. Thank you.

  • @surgingcircuits6955
    @surgingcircuits6955 4 роки тому +1

    Very Good English. Most Excellent Teaching Method. Thanks, Mr. Sunny.

  • @wizbangFLL
    @wizbangFLL 4 роки тому +1

    Thanks again sunny. Your easy to follow and give a clear train of thought in these videos.

  • @bigbrothercopacagrana618
    @bigbrothercopacagrana618 3 роки тому

    The best explanation on subnet I have found online so far. Thank you Professor Sunny!

  • @xxy8118
    @xxy8118 4 роки тому +1

    this tut is the perfect version of subnet masking for dummies. thank you so much sir sunny. more power

  • @Nick-oh6zl
    @Nick-oh6zl 4 роки тому +1

    Sunny, you are among the greatest teachers I've ever had. Thank you!

  • @Carmadd74
    @Carmadd74 3 роки тому +1

    Hey Sunny, I'm new to IT and I love your videos! I subscribed to your channel today. I love the humor and how you make computer language/processes so easy to understand. Keep doing what you do, I'll keep watching and learning. Thank you.

  • @jondoh2226
    @jondoh2226 4 роки тому

    Finally an explanation of the "why" that makes sense. Thank you.

  • @augustobadilla4880
    @augustobadilla4880 5 років тому +2

    I wish all my professors explained like you, Sunny! Thanks a lot!

  • @rfonagy
    @rfonagy 4 роки тому +1

    Sunny thank you so kindly for making this information easy to grasp. Love you my brother.

  • @ukuempress6508
    @ukuempress6508 2 роки тому

    Thanks! Gladly I found your video. I had some hard time watching others' explanation and browsing the web. You are able to clear away my confusion in just 2 minutes!

  • @Dyto69
    @Dyto69 3 роки тому

    Sunny you are my Hero. I suddenly understand all the things you explain to us. It took me sooo long to understand this and now im 3 minutes in to the Video and everything makes so much sense. Thank you!

  • @combinio9533
    @combinio9533 5 років тому +4

    Holy cow!!! You're the most brilliant teacher I've met in my entire life. You're THE BEST, thank You for sharing the video and the knowledge in such a convenient and clear way. I'm giving You a ring-sub, Love You bro!!!

    • @sunnyclassroom24
      @sunnyclassroom24  5 років тому +3

      Thank you very much for your wonderful words about me. I appreciate it very much.

  • @sheikhzakariaabedin9034
    @sheikhzakariaabedin9034 6 років тому +1

    Very simple and easy to understand - Sunny Sir is the best

  • @gregjohnstone9014
    @gregjohnstone9014 3 роки тому

    Thank you so much, these videos have simply explained what my professors could not.

  • @Gnsdtc
    @Gnsdtc 4 роки тому +1

    Somewhere over the rainbow *(music plays in my head)*. Awesome tutorial.

  • @supremerunning
    @supremerunning 4 роки тому

    the best subnet explanation , finally makes sense

  • @joshuaburnworth8611
    @joshuaburnworth8611 2 роки тому

    Thank you so much, Sunny! You have been helping me to fill the gap of knowledge for networking & subnetting that I have been desperately needing to fil! Brilliant instruction.

  • @geniustic1541
    @geniustic1541 3 роки тому

    This is the go to channel for all things networking

  • @balasemalisawi5196
    @balasemalisawi5196 4 роки тому +1

    Thank you for your professional way of explaining networking thingies.

  • @divinesreeram
    @divinesreeram 4 роки тому +1

    Wonder explanation with crystal clear example. Thank you very much..

  • @luisdelorbe6838
    @luisdelorbe6838 4 роки тому

    Excellent, professor!!... Clearer than this??... Impossible!!... Thank you so much for your videos!!

  • @Rogehood
    @Rogehood 4 роки тому +1

    Thank you sir, finally I understood subnetting the easiest way, very well explained.

  • @whoisjewel0666
    @whoisjewel0666 Рік тому

    bruh im out here tearing my hair out bc i couldnt understand this or any other video's explanation but Sunny out here doing it better than most

  • @anastasiskarlis1282
    @anastasiskarlis1282 4 роки тому

    Simple explanation to the point. You're a legend sunny.

  • @complot72
    @complot72 2 роки тому

    Great video! But the way it ends on a cliffhanger is too funny. Makes you feel like you have to go to next video immediately! So, on to the next one!

  • @pblintso
    @pblintso 4 роки тому +3

    Me finding this channel is like hitting a goldmine! It is rare to find tutorials that fit my non-technical learning style - slow, clear, straightforward. This channel is great for building and strengthening foundational knowledge. Thank you, Sunny, for the wonderful way you present your content!
    What specifically is the subnet mask "masking" or covering? Also, how come the comparison is only done for the network part and not for the host part? Is it because checking host is not necessary as a computer can tell whether the target computer is local or not based on the network part?

  • @Zimo0o
    @Zimo0o 3 роки тому

    Wow this is incredible, thank you so much I was having a hard time figuring out exactly how subnet masks worked.
    Your channel is such a hidden gem, subbed!

  • @gracebriody9053
    @gracebriody9053 4 роки тому +1

    Sunny, you are literally the best!

  • @shoal2242
    @shoal2242 5 років тому

    SUNNY YOU ARE GREAT , ALL HEROES DON'T WEAR CAPE , Keep up your good work!!!! wonderful way of explaining.i will surely share this videos with my collegues in the company. thank you

  • @sks220
    @sks220 4 роки тому

    sunny you're a godsend, just got out of my networking class having no idea what was going on and now I'm caught up in less than 20 minutes (watched your subnetting is simple video too) thank you!

  • @pedromoreira7271
    @pedromoreira7271 4 роки тому

    Give this man a medal !

  • @athisii_ekhe6167
    @athisii_ekhe6167 6 років тому +3

    Its simple and easy to learn when you explained it... thank you Sir!

  • @binyammamo6454
    @binyammamo6454 4 роки тому +1

    Thank you Sunny, the best and simple explanation ever.

  • @hnorberto
    @hnorberto 4 роки тому +1

    Thank you Sunny, your table is amazing. Very helpful.

  • @thingsinthebox
    @thingsinthebox 6 років тому +1

    I have wondered how this is done for a while, this is truely clear

  • @Psalm136_bit
    @Psalm136_bit 4 роки тому +1

    I love this guys style..wow!! Refreshed my memory to the core.

  • @baclieulieu3265
    @baclieulieu3265 2 роки тому

    one of the best training-session I got, thanks

  • @Asianlove4ever
    @Asianlove4ever 4 роки тому +1

    Yay for visuals!! I understand subnet masks better now.

  • @shubomishubomi8808
    @shubomishubomi8808 2 роки тому

    you the best Teacher online ❤❤

  • @Traumm9
    @Traumm9 5 років тому +1

    Another excellent explanation. Many thanks Sunny, it is very much appreciated

  • @Russh75
    @Russh75 4 роки тому +2

    Sunny - I want to thank you so much for all your simple to understand examples AND for explaining it as well (your chinglish is Awesome do not worry about it ) I subscribed today and will be looking to your class videos for my learning and hopefully going into CCNA with this information - just have to remember it all somehow :-) But I love all the classes that I have watched so far.

  • @Scrobytory
    @Scrobytory 4 роки тому +1

    Thank you very much !! I finally understood what a subnet mask does !! :D

  • @jasongoddard9709
    @jasongoddard9709 4 роки тому +1

    Sunny is awesome. So great! Thanks for the great content.

  • @rottyhome
    @rottyhome 5 років тому +1

    Thank you for clarifying with the Note that 00001010 was wrong because it was driving me crazy. I watched it over and over going that's not right. It is all good. Love your video and the simplicity that you explain things.

    • @sunnyclassroom24
      @sunnyclassroom24  5 років тому +1

      Thank you very much for your comment. I try my best to simplify things. Once we understand them, then go deeper. That is the way I like.

  • @asakzai2022
    @asakzai2022 3 роки тому

    Best way of teaching really appreciated

  • @walagable
    @walagable Рік тому

    Damn Sunny, this is the most beautiful lesson I got. You are a natural, thank you.

  • @4470rob
    @4470rob 3 роки тому

    Thank you Sunny. I understood a LOT. please keep up the good work.

  • @linhdo3640
    @linhdo3640 5 років тому +1

    Thanks Mr Sunny for your great explanation! It is just wonderful!

  • @nefariousnilbog
    @nefariousnilbog 4 роки тому +1

    Just found the channel and subbed. Great video, I hope I can learn a great deal from you.

  • @vasellmarjunits205
    @vasellmarjunits205 4 роки тому

    Sonny my IT brother, thank you. I got it - subnetmask allows computer to know is the target computer local or remote.

  • @sridharsg6562
    @sridharsg6562 4 роки тому +1

    You are doing a great job!! Well explained 👏👏

  • @sheereenhamza3700
    @sheereenhamza3700 5 років тому +1

    OMG! Awesome class :D. Thank you soo much. Didn't have to think twice b4 subscribing :). Looking forward to more awesome classes.

  • @rongliao9255
    @rongliao9255 4 роки тому +1

    Great concise tutorial! Very impressive!!

  • @sojourningstudios
    @sojourningstudios 4 роки тому

    Great video. Finally a simple explanation

  • @ChaiPark
    @ChaiPark 4 роки тому

    Your explanation is the best so far. Thanks for creating and sharing the awesome content!

  • @marinwolff7031
    @marinwolff7031 5 років тому

    Thank you! I am taking a class right now and was confused. This really helped!

    • @sunnyclassroom24
      @sunnyclassroom24  5 років тому

      You are welcome! Thank you for your time! Check out my other videos please!

  • @hkpoor7844
    @hkpoor7844 4 роки тому +1

    bravo job, clear and simple teaching method

  • @rrsonia10
    @rrsonia10 4 роки тому +1

    Very much easy to follow, thank you for sharing!

  • @royaltyfinds5736
    @royaltyfinds5736 3 роки тому

    Thank you sir
    .You are such an amazing teacher

  • @JeremyFisher
    @JeremyFisher 4 роки тому +1

    this man is heaven sent

  • @JSNMusic
    @JSNMusic 5 років тому +2

    YOU ARE JUST AMAZING!

  • @zinebha618
    @zinebha618 3 роки тому

    Sir, AGAIN, You are the best !!

  • @VinodM2022
    @VinodM2022 4 роки тому

    Explained cool stuff in a cool way. Appreciate your efforts.

  • @TheLunarGod
    @TheLunarGod 5 років тому +1

    Sir! you're my hero! Thanks for sharing us this video

    • @sunnyclassroom24
      @sunnyclassroom24  5 років тому

      You are welcome! Thank you very much for your kind comments!

  • @jjs8095
    @jjs8095 5 років тому +1

    Really easy to understand. Thank you so much.

  • @drakezen
    @drakezen 5 років тому +2

    Really good explanation. Great job and great videos!

  • @zx600e93
    @zx600e93 4 роки тому +1

    Sunny, YOU ROCK! I Love the slang term Chinglish and your accent is awesome, the "over the rainbow" phrase is hilarious too. I hope you don't mind me putting a lien on it? I'll be sure to reference you Sensei Sunny ;-) Thank you for the easy to understand concept of subnet mask and your previous video subnetting using tables, have a great weekend.

  • @JohnBrooksTrades
    @JohnBrooksTrades Рік тому +1

    I am stuck on the 248 and the 240 numbers, how do you get these numbers? Everything makes sense until people start talking about the 248 and 240...where do these numbers come from?

  • @chaoshasenteredthechat4530
    @chaoshasenteredthechat4530 3 роки тому

    THANK YOU SOOOO MUCH SUNNY I finally understand this.

  • @EES80
    @EES80 4 роки тому +1

    I love this channel! Thank you for putting out great content!

  • @donaldmitchell2390
    @donaldmitchell2390 5 років тому

    definitely a fan of Sunny's way.

  • @connief2679
    @connief2679 4 роки тому

    Thank you, Sunny!! For these very helpful videos!

  • @ZeroTwoTwoFive
    @ZeroTwoTwoFive 5 років тому +1

    Sunny, you are amazing. Thank you.

  • @joceyghoul
    @joceyghoul 5 років тому +1

    Bless you!!! What Amazing videos! Eternally grateful! 🙏✨💫👍👏👏👏

  • @drissitoubbalifadel513
    @drissitoubbalifadel513 6 років тому +1

    you are definitely deserve 1M subscribers

    • @sunnyclassroom24
      @sunnyclassroom24  6 років тому

      Many thanks. Maybe this time next year :)

    • @oz12353
      @oz12353 6 років тому

      love phone and internet hack