Subnetting Made Easy Part 2

[MrBettertimes]

Thank you for taking an excruciating difficult subject for most students yet extremely important topic to know in terms of networking and routing to a digestible level.After reviewing much material about this addressing issues, this is by far the best presentation that I have seen.

thanks;geekdaddyo

[fishthefreakingfish]

Thanks, this is waaaaay better then how the teacher explained it. :D

[PALIL2]

Thank you for the videos! Brilliant! One question however, how would I go about quickly answering typical cisco subnetting questions, such as, What valid host range is the IP address 192.168.1.148/28 a part of?

By using your example, the only way I can see to do this is to calculate 0+16=32 32+16=48 48+16...all the way until 144. If there is a quicker way or if I'm missing something I'd be grateful if you could explain..thanking you

[PALIL2]

@PALIL2 I should have mentioned I was looking to do it another way or use some random magic number or trick...although in this instance I suppose I could of multiplied 16 * 10 and subtracted 16. If no further tricks from this point, I'm happy carry on this way!

[kleanchap]

Thank you!  You made it very very easy to subnet! I need to know this inside out for the ccna exam, Thank you once again!!

[Amoy9110]

thank youuuu omg i finally understand this!!

[OLAYNX]

So with this method, how do you calculate the custom subnetmask if the default subnetmask is 255.255.0.0

[foxfire1112]

Thank you. Pull out a pad of paper, pause and take good notes on each step he gives and you will understand subnetting forever and will never have to be confused. 

[cmcghie90]

thanks man!! finally cleared this in my head. thanks :D

[munalemj]

i <3 this!!! pls make videos for Class A and B... this concept made me understand subnetting easier than the other ones..

[eznight25]

This is great for Class C but I guess I'm missing how it works with Class B or A. I have a problem where I need 400 ip's for Class B 172.16.36.0 How does it work in this case?

[FrankBlackstock]

You taught me what my 1 hour level 5 network university lecture could not, this worked for me, Many thanks.

[Hellazius]

Im new, Subnet#2 and #3 have the same mask, howcome?

[Lectro0089]

Can the first subnet communicate with the last two given that they have different subnet masks?

[aeomus26]

Thank you for your help! I was struggling to understand how to subnet and i understand better now. Thanks again =)

[kamalbabu007]

Fantastic Explanation ...Hope this is simplest and crystal clear subnetting method I ever learned.

[nismoman420]

Awesome, you explained this better than Cisco teachers and all these other crappy videos. YOU ARE THE BEST!! I had such trouble before, thank you! Why dont they start it out with the 8 bits at 1 -128 right to left, that's the subnet bible right there.

[BeerIndependence4All]

Phenomenal! Passed my CCNA in 2005 with straight A's, but always struggled with subnetting math. This makes so much sense! I'm taking CCNA again right now to complete my degree... it has been six years... and this will help me a LOT! Thanks again!

[nas2401]

what is the subnet mask of the last one?

[TimAmerica1000]

Bravo Bravo Bravo!



[marjune22]

thanks man that was really helpful. Now I think I can start my project. ^^\m/

[sykeodelic]

That was a phenomenal explanation! Simple, simple, simple. Years of frustration trying to get a good method to do this. Thank you.

[piogs]

Good Job... Thank You so much!!!

[nealmcminn00]

If 81 is the first usable IP and 94 is the last usable.... Isn't that 14?? Let's count people...

[SoccerCoachPablo]

Please make a supernetting video.  Please, please, please...

[SoccerCoachPablo]

Thank you so much. I've studied, read, etc about subnetting and didn't completely "get it" until these videos. You made it super simple. Thanks.

[GKClaussen]

I have had this explained to me with charts and rows and rows of numbers, and I just did not get it. I GET IT NOW!!! You ROCK!!! Thank you Thank you Thank you!!!!!

[tonyduou]

hey great tutorial man, quick question, will this work with class A and class B subnets?

[MrHaroldCheer]

your tutorials are so easy to understand thanks for posting, can you clear something up for me is this VLSM? finding it hard to see the difference between vlsm and normal subnetting.

[daniiee17]

omg! thank you so much! the only person/video who seems to be able to explain and demonstrate this clearly!!!!!

[xenocideCM]

Best way I have even seen subnetting explained thus far. Excellent job.

[Blindfated]

Thanks! This is great!

[ziguratify]

can i ping the subnet 1 or 2 using an ip in the subnet 3? or vice versa?

thanks..

[BarekHalfhand]

THANK YOU!

You saved my self esteem, I thought I would never get this... finally a tutorial that explains everything so logically..

[dgambriel]

Thank you.

[hevora86]

had to sign in just to say good vid...everyone else here on youtube seem to add addtional crap they just gloss over w/o explaining why it's there in the first place

[BarekHalfhand]

@hevora86

EXACTLY!

[clegs350]

I have been struggling with lecturers confusing me in this topic for awhile. I learned more from your 2 vids in half hour than I have in 5 classes. Thanks very much for taking your time to clearly explain this simplified and effective method. I have a exam on it tomorrow and I finally feel confident.

You do indeed rock. If you're ever in South Australia I'd love to buy you a beer!!

[MrCrackr17]

I have watched videos from dr messers net+ on youtube, trainsignal videos, and a number of other vids and this one was the first video that I could clearly understand. Thank you!!

[nettek888]

How simple was that! Thanks for clarifying the subnet process for me.

[jperson03]

nice, now i understand, my teacher was all over the place

[sntgroup1]

you like apples? HOW 'BOUT THEM APPLES!!!!! NICE WORK!

[RyekerX1]

thank you sooooo much!! im currently in CCNA 1 and im going to be taking my pre-finals and finals in the next 2 weeks and I cant thank you enough for this tutorial!! I can now say that im confident in my ability to subnet!! hahaha thanks to you!! thank you sooo very much! youve given me hope that i can pass the finals now!!! now i gotta study the rest of the book! hahaha

[MegaBlackhawk75]

There is Hope for Afterall!!! Thanks NexGenT....You Rock!!!

[wcnormjv120]

Very nice video, explained it very well. I was wondering if you would be able to do a video for a class B address?If not I understand.

[mikegliddas]

Eureka! Thank you!

[goman87]

Very helpful, thanks a lot!!!!!!!!!

[hafizullahtube]

I want to ask one question, as we can see you have demonstrated the example with a complete octet, sometimes I have examples where I have a whole octet plus half of the other octet, how do you suggest I should go about working out the subnet for such example? this maybe a subnet in class B

[hafizullahtube]

This was just a great video in this subject. thank you!



[watch1time]

dude. did i miss something. you say create 14 usable. your example created 13 usable. 0 was not usable and 15 was broadcast. am i right. im watching this because i dont understand and want to learn.

[NexGenT]

@watch1time I believe you are confusing the number of subnets with the number of usable ip addresses. 0 is usable as a subnet but not as an ip address in this example. To create a subnet with 14 usable IP addresses you will use a mask of 28 bits in length (AKA 255.255.255.240).

[NexGenT]

@watch1time Given the example 192.168.1.80 /28

First usable IP address: 192.168.1.81

Last usable IP address: 192.168.1.94

Broadcast address: 192.168.1.95

[AlexBrasil123123]

@NexGenT

hello, just watched your subnetting videos and they were phenomenal! very easy to understand.....I just have one question, which may sound dumb but, I'm very new to all this:

What does it mean when two separate subnets have the same subnet mask, as appears in your example? Isn't the subnet mask supposed to be a unique identifier of some sort? if so, how can two different subnets have the same mask?

[Supermanu15]

@NexGenT if the first usable ip address in the 2nd subnet is 192.168.1.65 then the last is 192.168.1.78 right?then that's just 13 usable ip addresses am i correct?that part is what confuses me O_O

[ranjithreddy1232]

@NexGenT : I Got The same Doubt !!

Well u reminded how poor we are at Math :)

@Watch1time : I guess (1 to 14) u forgot counting 1 .its not (14-1=13 ).Hope this helps

[domsuyang]

@watch1time

i assume you made the calculation 78-65 when you thought he had only created 13 usable host addresses BUT you forgot to factor in that the range is address from 65 to 78 INCLUSIVE, which is 15 usable subnet addresses.

[Piffer76]

Thank you!

[IceWaterInc]

thank you! now i can go do my exam tomorrow :P

[leon1p]

Great videos of subnetting. I really couldn't get my head round it but with these videos I finally think I'm getting there with it. 

[mkolk1utube]

Very good :)

[wildeye]

thanks heaps

[s1lent625]

wow

[s1lent625]

@s1lent625 the best explanation ever