Subnetting By Hand

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Күн бұрын

Пікірлер: 79

@huntera6301 4 ай бұрын

I have watched so many videos on subnetting and was feeling like giving up and crossing my fingers before I took the network+. Not a great plan but I felt defeated. Thank you for helping me understand. Easily the best explanation.

@DionTraining 4 ай бұрын

Best of luck!

@Bandit_Storm 6 ай бұрын

This is the best subnetting video I have found by far. Thank you very much!

@DionTraining 6 ай бұрын

Glad it was helpful!

@WhatTheGame 3 жыл бұрын

This and Messers 7 second subnetting is godsend for understanding it.

@VictorTerrazas-o3y Жыл бұрын

Incredible.. It took this video for everything to make sense. No more wondering if I'm right or wrong. Now I understand it all. Thanks!

@DionTraining Жыл бұрын

Glad it helped!

@mikenelson1495 5 ай бұрын

This was easier than calculating the length of a replacement bolt for my dining room chair! Thanks!

@StevenACulbreath 4 жыл бұрын

what about subnets with a " /

@mikenelson1495 5 ай бұрын

Then you count up from 16. A Class B subnet: 255.255.0.0

@lolaspratt5860 2 ай бұрын

This is very helpful. For me it’s easier to remember: Subnets: 1 = /24 = 256s IPs in one net (256/1=256) 2 = /25 = 128 IPs in each subnet (256/2=128) 4 = /26 = 64 IPs in each subnet (256/4=64) 8 = /27 = 32 IPs in each subnet (256/8=32) 16 = /28 = 16 IPs in each subnet (256/16=16) 32 = /29 = 8 IPs in each subnet (256/32=8) 64 = /30 = 4 IPs in each subnet (256/64=4) 128 = /31 = 2 IPs in each subnet (256/128=2) 256 = /32 = 1 IP in each subnet (256/256=1)

@ben2mx 5 жыл бұрын

I had a hard time understanding the left hand side compared to the right. Basically the way we count its not consistent left versus right. On one hand, it should be like you said, "up from there". so meaning if its /26, its up from 24 so we count 25 (first finger) and 26 (2nd finger). On the other hand, we DO begin counting the 24 (256). It took me a while to understand the difference from networks\subnets versus the amount of IP addresses.

@ben2mx 5 жыл бұрын

In other words Jason, what I was trying to convey, is that your explanation makes sense, but keep in mind that from our perspective, we right away assume its the same way we count left and right, and it would be better to explicitly clarify that potential confusion. Thank you for the effort you put in these videos and all this feedback is with good intention.

@ADAMXBEFFA 5 жыл бұрын

Agreed, this system seems to work but your explanation is lacking.

@JacksonCampbell 2 жыл бұрын

@@ben2mx As he pointed out, he had already taught about subnetting in previous lessons. Regardless, /24 is in itself a subnet, the single subnet network, hence the first finger and thereby the greatest amount of hosts. And he didn't lack in explanation because the illustration of him doing it, which he did many times, was the explanation and literally shows how it's done step by step..

@NettisCertainlySubTier Жыл бұрын

@@JacksonCampbell For those that choose not watch the series, a recap would've been nice.

@creativelair6252 Жыл бұрын

@@JacksonCampbell for us new ppl that just became aware of this method through this video alone. I was confused also. @Ben2mx comment made me to be able to comprehend. Remember everyone is not starting from the same place.

@frankaraujo5094 Жыл бұрын

This dude is a genius thank you.

@JupiterEarth 3 жыл бұрын

Holly Molly, if only my former teacher had taught me this way... Thanks a lot Jason.

@styro 4 жыл бұрын

This video is great! I spent a lot of time reading about subnetting and various other videos, but watching this really wrapped things together. For those wondering, yes you can use this method for cidrs that are less than /24. I just used it while taking a 30 question practice quiz on examcompass and got every question correct using this method, lots of questions with cidrs of /9, /20, /17, etc..

@styro 4 жыл бұрын

Just to add, I recommend you spend sometime really understanding the foundations of subnetting before starting to learn this method. Wrap everything up with this video and you will be good to go.

@salumomar1873 4 жыл бұрын

Jason, you are good, much appreciated.

@thrillhouse4784 Жыл бұрын

Why for the ips from right to left he's starts with slash 24 but for the subnets from left to right its slash 25?

@linuxxxunil 11 ай бұрын

because there are 256 ips in a /24 network? that's my guess. if 0 and 255 are included that is 256. I could be wrong but don't see any other way out.

@varsth 2 ай бұрын

Well done, this could literally be taught to a 5 year old. :)

@praveshmaharaj4387 2 ай бұрын

what if its less than /24.

@TheBeach5563 4 жыл бұрын

This looks pretty cool. May have to look at your other videos first probably but I work as Network Admin. I need to understand what they are and if someone asks me some info on it to be able to do it quickly.

@ln1990 3 ай бұрын

Thank you

@linuxxxunil 11 ай бұрын

WoW... But can this method apply to /23 /22 /21 etc? Or class B and A networks.

@nicholaspendleton8965 2 жыл бұрын

Did that guy just flip me off /30??? Just kidding! great video Jason I love your courses. They are very helpful and educational!

@wightclaudia 6 ай бұрын

NET+ PEOPLE: Memorize this and trace your hands out on the paper at the testing center. Do this before you click through the agreement and start the test. In person testing is required to give you blank paper and a pen and they will allow you to write out anything you want from memory If you memorize this you should be able to trace your hands and number each finger in about 30 seconds

@blasaloth 4 жыл бұрын

Great explanation. This, I can remember.

@RicondaRacing 4 жыл бұрын

Dude, you just helped me so much. Thank you

@adrianciociu9261 Жыл бұрын

Super helpful TX

@Nymphologist 5 жыл бұрын

Yaaaayyyy I finally get it. Thanks Jason 🥰

@Shaaz420 Жыл бұрын

I feel he went through how to find the Network ID, Broadcast ID, and 1st/last useable IPs fairly quickly. Can anyone elaborate on how to find these using the method shown in this video?

@PS2Damon Жыл бұрын

what I got from it is that you gotta just guess it based on the multiple choice answers for example if it's asking the host ID, I'd bet on the next number closest to a squared below it for example if the last number is .140 and one of the options is like .32 .64 .128 or .192, I'd guess .128 since its below it and I'd gues that the .192 would be the broadcast. It's nearly impossible to find that using this method I think

@JR-lt1vl 5 жыл бұрын

omg this helped me so much thank you, my ccna 2 class will be so much easier now

@Mangokyaw 3 жыл бұрын

love this method.

@falcongenix Жыл бұрын

I had questions on the Network+ exam about subnets less tham /24. I remember one was /13.

@jakepayne2985 Жыл бұрын

I’m taking it in 3 days, can you elaborate?

@jakepayne2985 Жыл бұрын

Oh I think I know what you mean. The chart I memorized for it has /1-/32 listed, and all networks and devices with them.

@BantuKing99 Жыл бұрын

@@jakepayne2985Did you pass? And how hard was it?

@michaels6809 3 ай бұрын

i understand determining the subnets and amount of IPs, but the second part when he just starts splitting up the IPs randomly, i cant understand why

@DionTraining 3 ай бұрын

Hi! We'd love to help you understand, can you tell us more about what is confusing you?

@michaels6809 3 ай бұрын

@@DionTraining So once I determine the amount of subnets and hosts, how am I determining the start and end range off that information. It's really just the second part of the video that I was struggling to understand, I couldn't end up with the same result as you based off those examples.

@JamesDokai 15 күн бұрын

How does he know to count from "25" for /29?

@jussymane 4 жыл бұрын

Do you sell these for use during the exam?

@JohnDoe-101 9 ай бұрын

Wait, why do you start counting at 24?

@nicole.9889 7 ай бұрын

right im so confused

@riezaali4809 5 жыл бұрын

why do we always start counting from /24?

@riezaali4809 5 жыл бұрын

I mean what if i had xyz/24 or /23

@williamw.2610 3 жыл бұрын

This!

@bonusbeats7861 2 жыл бұрын

Don't understand when to start with 24 or 25... You start with 24 on one hand and 25 on the other at different times and don't explain why. Can you clarify?

@gfjfjufidi2880 2 жыл бұрын

25 when counting # of subnets. 24 when counting # of IPs

@PS2Damon Жыл бұрын

7:45 when he is lookng for subnets it's 2 because it's (his) right index finger = 2 but then he goes to "256" which is actually (his) left index finger which he starts at 24 earlier, how is it 256 and not 128?@@gfjfjufidi2880

@Stealthycybertaco 5 жыл бұрын

You're a godsend! thank you so much!!!!

@seanmcguire17 3 жыл бұрын

Great info but it would have made more sense to film the hands from the other direction so that we see it just as we would see looking down at our hands instead of how we would see it if you were standing in front of us. That way you don't have to explain my left is your right and my right is your left and potentially confuse some people