Class A subnet mask is 255.0.0.0(0-127) Class B subnet mast is 255.255.0.0(128-191) Class C subnet mask is 255.255.255.0(192-223)
@peeledxorange2635
3 жыл бұрын
m confused with his IP add example starting from172 which falls under class b? but why he showed the class c sub net mask?
@saradev9445
3 жыл бұрын
@@peeledxorange2635 me too :(
@mok6375
3 жыл бұрын
@@peeledxorange2635 3:07 For class B default subnet is 255.255.0.0. However, that example given he did explained it's not an default submet mask
@carreviewswithhashir
3 жыл бұрын
@@peeledxorange2635 same here, class B 255.255.0.0
@Alianger
2 жыл бұрын
What do you mean by the numbers in parenthesis here?
@27cyna
Жыл бұрын
You are my hero!!!!!! Thank you for making this so easy to follow! Love, a formerly frustrated 🥴 IT student
@InfinityWarriorInc
2 жыл бұрын
Simple, straightforward. Makes a lot of sense, thank you!
@ES-ix1rn
4 жыл бұрын
On another example of clear vision, logical reasoning and a great way to explain subneting. Like and subscribe.
@strawberryicecream04
3 жыл бұрын
Thank you very much, this has truly helped me with my exams!
@clarkyno1311
3 жыл бұрын
Brilliant teacher
@shivkumarsahoo946
7 ай бұрын
Very nicely explained
@chaithu_varma
Ай бұрын
Simply if we do bitwise and with each octet we will get the subnet number
@magombedzeelizabeth7411
11 ай бұрын
I’m glad I came across this tutorial now.. thank you but why do we have to use the number 256 ?
@coffeebearboi
3 жыл бұрын
Oh my gosh!! Thank you so much!! I was thinking it would be so hard to solve, as my book made it complicated to figure it out but this video help out so much! You're a lifesaver!
@billionairepodcast
6 жыл бұрын
whats exactlysubnet number ? i have tried to googling and couldnt find any answer.
@Zerlot
Жыл бұрын
Very good tutorial... my only question: Where does the number 256 when you subtract from it with the last octet in a subnet mask come from??
@27cyna
Жыл бұрын
256 is the highest number you can get in a bit (0-255)
@TheKpow
Жыл бұрын
Currently doing the Google cert about this and the way they explain it makes no sense. Thanks for this
@kayedghananim9273
3 жыл бұрын
Hi. I just wanted to know where 256 comes from?
@Abc-dt2bz
3 жыл бұрын
2^8 = 256
@Saikoub119
3 жыл бұрын
Thankz a lot this video jus saved me....🤟
@TheseWordsTouch
Жыл бұрын
Thank you thank you thank you!!!
@SudhaPriyadarsini
9 ай бұрын
Thank you so much ...
@derpyderplord4833
3 жыл бұрын
Wait so if I have 3 digits for the first 3 for the second adn the last 2 spaces are also 2 digits then do I use the same subnet mask?
@unknowngamer610
3 ай бұрын
Thank you 🙏
@joshuaswilling5414
3 жыл бұрын
thank you !
@TRE4RAISEDME
4 ай бұрын
3:08. That subnet mask is incorrect. That is a class c subnet mask
@kennedyalexander1541
6 жыл бұрын
What is the subnet number for 10.0.0.0, 255.255.240.0. When there's an interesting number in between
@VLearnIT
4 жыл бұрын
The answer is 10.0.16.0
@rickyray2794
4 жыл бұрын
@@VLearnIT so if the IP has a 0 and the subnet mask has anything other than a 0 or 255 you just minus by 256 and that is your answer? (in this case 16)
@VLearnIT
4 жыл бұрын
@@rickyray2794 Yes that is correct! You can make a chart as well to make the conversations even quicker if you're taking exams, if not you can do it in your head like you just suggested and that works perfectly fine.
@rickyray2794
4 жыл бұрын
VLearn I.T. I have to take my A+ core 2 (I’ve been putting it off, nervous about studying. I passed my core 1 a few months ago). But after that yeah I’ll be taking my net + so I would definitely prefer being able to do most of it in my head. I’ll be working a bit with it this semester for my sys admin class as well.
@VLearnIT
4 жыл бұрын
@@rickyray2794 Good plan, good luck.
@jackli738
2 жыл бұрын
I'm confused where the 240 came from
@anthonyobryan3485
2 жыл бұрын
Jack, 240 was an arbitrary number chosen for an example.
@catalincoconeanu4929
6 жыл бұрын
Dont know what to say, using an IP calculator for the 3rd example with the IP: 192.168.20.73, is getting the result 192.168.20.0/24 or just 192.168.20.0 . I tried with two different IP calculators, same results. However it is an interesting way to calculate.
@lordjunk5847
5 жыл бұрын
Catalin Coconeanu wouldn’t the third example be /28 not /24 cause it’s 255.255.255.240?
@shannanderson2636
5 жыл бұрын
Thank you so much Sir
@muhammadhusnain974
5 жыл бұрын
great video
@arjunbatra2072
3 жыл бұрын
this is so awesome!
@bjacksd1055
4 жыл бұрын
save my day
@VeryTexChannel
7 жыл бұрын
Great job
@0xb15h4l
4 жыл бұрын
like this
@kennedyalexander1541
6 жыл бұрын
Just got it, it's zero? So, it's 10.0.64.0???
@Miona_
3 жыл бұрын
255.255.255.240 240 why?
@YashBhardwaj1
5 жыл бұрын
What happen when we have, Class c network Of 192.168.0.0 /25 How to solve this ?
@rickyray2794
5 жыл бұрын
Yeah i am wondering this myself.
@gerryvalenzuela9158
5 жыл бұрын
that network number is 192.168.0.0 but you have a /25 that’s means that your networks goes 192.168.0.0 to 192.168.0.128 so the fit network broadcast is 192.168.0.127
@DaveBenchmarks
4 жыл бұрын
@@gerryvalenzuela9158 Hey, Garry, do you think you can solve this? I'll gladly appreciate it! You have IP address 10.10.11.11 and netmask 255.128.0.0 (10.10.11.11/9). In which subnet is this address?
@anh-tainguyen9840
4 жыл бұрын
thank you
@boyarsan3101
3 жыл бұрын
can someone answer If the receiving address is 200.45.33.54 and the subnet mask is 255.255.250.0, what is the subnet address ?
@ahmadsalem7222
2 жыл бұрын
The subnet mask is not valid!
@earthyemey
4 жыл бұрын
Super!
@MrTYQi
Жыл бұрын
casper's military network...
@MrTYQi
Жыл бұрын
a real military..
@pavithra8500
4 жыл бұрын
For third example 193.168.20.73 how u have taken the last subnet mask number as 240 can u explain
@aj4991
4 жыл бұрын
/28 network but he is using this to just teach the math of finding the subnet address so he way not have said that.
@andreicosmin3177
4 жыл бұрын
default class B subnetting mask is 255.255.0.0, NOT 255.255.255.0 !!!
@abdulbasitsalah2918
3 жыл бұрын
your second example is not class c it class b so the subnet number will change 😊😊
@yamboa
2 жыл бұрын
You can do subnetting not necessary using the default mask, second example he said "This has been subnetted" because the design used a different mask that belongs to a class C, (not B as we expected) not the default one but that depend of the requirements of host and subnets needed.
@akplehejustin1292
Жыл бұрын
Thank you for saving my ass🤩😘
@dinukahettiarachchi5329
5 жыл бұрын
172.200.10.5 class B >> 255.255.0.0 Subnet number is 172.200.0.0
@codmobileprogamer
6 жыл бұрын
default class b address is 255.255.0 ! i guess ;)
@professionaltailors1489
4 жыл бұрын
Wronge.its range is wrong which you told. ...😂making fool
@neerajbhaskar8934
3 жыл бұрын
U are wrong in class B, the right subnet is 255.255.0.0
@keyntankeye
3 жыл бұрын
Don’t usually comment but have to show my gratitude. So many tutorials have their own method but this way really helps me solve so many different scenarios consistently without getting stuck. Thanks again.
@kayedghananim9273
3 жыл бұрын
Hi. I just wanted to know where 256 comes from?
@farhanaabdullah2970
3 жыл бұрын
From 2^32-24 = 2^8 = 256
@sahejbhatia7331
4 жыл бұрын
in the second example 172 is a class b address, so subnet will be 255.255.0.0
@Ms.Robot.
3 жыл бұрын
❤WOW❤ That was great! You explained that better than all of my tech professors at the university.
@sastenashemarketing4756
2 жыл бұрын
Wow thanks ❤️
@erfanafshan
6 жыл бұрын
kiss on your hands thank you thank you thank you thank you thank you thank you thank you thank you thank you
@MSSPDailyDose
2 жыл бұрын
Dude i've been trying this shit for about 5 hours today and it never clicked, your method of teaching is dope just wanted to express my gratitude. Keep doing whatever you do because you're obviously doing something right in life. Thanks again.
@heistman141
4 жыл бұрын
How can be the class be subnet mask 255.255.255.0 and it is actually 255.255.0.0 in second question
@rosedhessi340
4 жыл бұрын
Yes same confused me too
@grizzly2cracked479
4 жыл бұрын
wa
@MyersEmpires
4 жыл бұрын
As a class b net ID it would default to 255.255.0.0 but if you don't need 65,534 IP address then the net admin is able to shorten the scope by setting a smaller subnet mask. But again if youre using a class b subnet you probably need 65,534 ip addresses.
@kunaii_cs
4 жыл бұрын
255.255.0.0 is the default mask but if you subnet it given a different CIDR notation it might be different.
@tomross8820
4 жыл бұрын
why is it 256?
@colin_cant_lose
Жыл бұрын
I really appreciate you putting things so simply put. These videos taught me more in 20 mins than an hour of reading yesterday!! 😂
@GermanShepherdDaphne
3 жыл бұрын
What about this IP?? I have a e-commerce website and have SPAMMERS clicking my ads using this IP range. I CANNOT block these types of IPS. How do I find the original IP?2600:1702:2f30:97b0:e838:1f6f:8bbd:db46
@sabwepatrick7865
2 жыл бұрын
If I may ask, where does the 256 to subtract from comes from. I mean why do you use 256 to subtract and not any number above it, thank you sir
@ScreenplayReview
5 жыл бұрын
what will happen if the one octate in ip is 16 and corespoding subnet is 192 then 256-192 =64 but ip is already 16 then what write .. ithink 0 is the answer...
@mandownXtownmade
4 жыл бұрын
Is it? Because I was wondering about the same thing when the octet Is a 2.. u get 64 , but do I put 64 or 0?????
@majorskies7091
3 жыл бұрын
wow every teacher should be like this!
@DarkLifeMatters
2 ай бұрын
So does "Classless" practically mean we are reducing the number of hosts because we dont need all of the availability?
@shivamgupta-ri3fy
6 жыл бұрын
just made my day with that formula. Thank you so much
@CarlieMartece
11 ай бұрын
Thanks! You explained this better than my university teaching materials, where it just sounded like they were making up numbers.
@Jumanji888
Жыл бұрын
Now that I actually understand !!! I have watched so many vids on subnetting and it feels like rocket science but you have explained it far more clearly, thank you!!
@Wigalicious
2 жыл бұрын
Sir I could kiss you right now. Your methodology is incredible.
@dimpalkurmalkar6130
4 жыл бұрын
okay, so he performed '&' (and ) operation between IP address and subnet mask. . . .
@DrTariqulIslam2535
4 ай бұрын
for class B- default subnet mask will be- 255.255.0.0
@JUDITHMWESIGA
8 ай бұрын
Whats the difference between with subnetting and without subnetting?
@soaremicheledavid6020
Жыл бұрын
Waste of time again, did not explain how to calculate
@dashrathprasad3252
3 жыл бұрын
Now it,s 2021 so came back to KZitem please
@joyariffic4217
3 жыл бұрын
Where did you get the 256 from?
@randomgirl1656
4 жыл бұрын
What if the 4rth octect of ip address is less then from the minus value comes out... Like after _ you got 16 and the 4rth octect of ip address contain 14 then what to do how to sum up? 16 we cannot exceed you told... Please tell
@Alianger
2 жыл бұрын
Can I calculate the subnet mask without the cidr notation, only the ip address?
@Johs4490
3 жыл бұрын
Thank you, what an easy way , very good explained , but what with a pubic IP address you never get to know the subnet mask.or the class from the ISP , you probably do not need it as a home user, but i'm currious.
@kashishsheth5310
6 жыл бұрын
Nicely explained! Cheers mate!
@davecarattini1915
Жыл бұрын
I love you. After 4 and half hours of searching, you solved my problem. My contribution was to make the connection between your 'subnet number' and 'Cascaded Network Address' (which my router software was asking for). Thank you, Thank you, Thank you!
@MrTYQi
Жыл бұрын
256 makes it no remote dekstop onli Bios mode
@Justificable401
5 жыл бұрын
Why 256 tho ?
@ClaytonBugeja
Жыл бұрын
very incredible but the problem is that they never gave you the subnet mask, so you end up using the end operation.
@DrTariqulIslam2535
4 ай бұрын
I think, its a wrong video
@10ysf
Жыл бұрын
Is the subnet mask correct here at 2:57 ?
@rhul0017
4 жыл бұрын
why 256?
@roshnibhatia8171
5 ай бұрын
OMG ..so good explanation
@rasmiranjanray5866
4 жыл бұрын
In the 3rd example if my ip address is 193.168.20.10, then what could be subnet number?
@passan348
3 жыл бұрын
I had a question let say I have 10.10.166.12 10.10.164.46 _____________ ? what would I have to do now?
@Red_rshd
3 жыл бұрын
one of the best understandable videos out there.. i am literally watching this during my final semester exams and it totally helped me!!!!!!!!!
@nguyenquoctrungo9759
5 жыл бұрын
Thank you for not speaking Indian, so hard to find Computer Tutorial in English nowadays
@worlaliawakame762
Жыл бұрын
I mmmeeeaaaannnn
@abhaybiswas8480
Жыл бұрын
😂😂😂 this is India 🇮🇳 bro
@PheeBaby.x
Жыл бұрын
Rude
@joyjit_roy
Жыл бұрын
@9759, *What is the exact problem if someone speaks Indian can you tell us ?*
@PheeBaby.x
Жыл бұрын
@@joyjit_roy right! it’s such a rude comment smh
@mullt-w6w
Жыл бұрын
When u add 16 to 64 = 70 not 80
@MustaphaBiney
8 ай бұрын
I love the you teaching ❤
@tenesiadontneedja
4 жыл бұрын
😭😭 Thank youuuu the book was not teaching me this easily
@hatemdaiche4847
6 жыл бұрын
very well explained thanks
@Magician12345
Жыл бұрын
how are you able to imediately know what class a IP is?
@MichaelWright-n1d
11 ай бұрын
Do you still use formula for number if value is 254?
@its_cool_me_bro3377
9 ай бұрын
3rd one does not understand
@juniorbuking860
5 жыл бұрын
THANK YOU! Very easy to understand :))
@josietron6969
8 ай бұрын
10 minutes and now im so much more confident thanks
@Moraw-
5 ай бұрын
Thank you sir😊
@MrTYQi
Жыл бұрын
ehehe mybad...its 20
@migueljackson1340
6 жыл бұрын
I never feel so comfortable with this explanation; you're rock Thanks
@MrTYQi
Жыл бұрын
i not no idea on this one
@Mclubens
Жыл бұрын
These subnet videos are gold. Can you make an updated version for subnetting?
@חדוהכהן-נ7נ
2 жыл бұрын
such a good video, thank you so much youre aweseme!!!!
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