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IP Addressing & Subnetting Review
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- Опубліковано 14 сер 2024
- Since I have a old video that explains about subnetting "IP Addressing & Subnetting" in the channel, I wanted to update the subnetting part and give you guys a quick review with a modern feel.
You can watch the old and the new videos to get a better understanding of this.
You’re an amazing teacher. I truly spent months trying to even grasp IP addressing and subnetting until I seen you’re video. Thank you.
Recently came across this guy... I love his teaching style. Thank you for making these videos, they've helped a lot!!
+Tiffany Clark ....thanks Tiffany!
He sounds like Merle Dixon,
He looks like Mike Ehrmantrout.
He teaches like a God.
Well done Sir, you helped me be more confident on my Cisco hands on exam coming up.
You look like Mike from Breaking Bad and Better Call Saul.
Thanks for explaining
I thought the same :D
I looked at the thumbnail before entering this video and was like da fuq, Mike? What gives? Hahaha!
hahaha had the sam thought
There's another networking guy popular on UA-cam called Eli the IT guy.. he looks, AND SOUNDS just like Walter White
He looks more like the Rock.
I have an exam coming up and both of your videos (original and latest) truly helped me clarify my confusions about subnetting. Your videos are well-organized, well-explained, and hilarious. Thank you so very very much! More power!
Thanks Marcus...glad it helped!
The same here :-)
Hello Sir, I want to thank you from the bottom of my heart for teaching me how to subnet. I looked at numerous of videos and it seemed like all of these instructors that was teaching subnetting on youtube was making it confusing for me. When i look at this video and your original video "IP Addresses and Subnetting" i quickly understand the information that you laid out and couldn't believe how easy you made subnetting for me sir. Thank you, Thank you. You are a great instructor.
+Tito Cotto ...thanks Tito! I'm glad I was able to help. 😊
very soory to ask but @ minute 7.24 u said break into 3 parts.. Why is that??@@thenetworkingdoctors
I would like this guy as a professor. He yells so loud, I could never fall asleep in class! haha
This man is a great instructor in the network field and others field of the IT.
+Channel - ROBERSON OLIVEIRA ...thanks Roberson!
writing my exam in just 6 hours revising now all night. College gat no sleepers wish me luck.
Thank you laz
+PRECIOUS NCONGWANE ...let me know what happened?
His class B showed a /21 (255.255.224.0 - increments of 8) but midway he switches over to a 255.255.240.0 which is /20, working with increments of 16. I do not know how he missed that.
he did notice something was wrong... but continued. the core explanation still works but he should redo this problem.
Agree!
That is what I was thinking too.....
Must be his biceps got in his way...
class B = /16 or 255.255. or 11111111.11111111 /21 = 16 + 5 or 11111 network side counts Left to Right 256-1, 128-1 ,64-1, 32-1 or 224 subnet or /20
for /21 the next bit borrowed = 16 so the subnet becomes 224 + 16 = 240
I just came across your channel a week ago and I wish I found it sooner because this video helped a lot. Thanks.
This gentleman is a wizard. He makes the nearly impossible look absurdly easy.
Thanks Karl!
Thank you so much. I've been doing this online course and they explained this part poorly, the first 13 minutes helped me understand what I was struggling to get! Thank you so much!
Glad to be of help 😊
This has really helped me that i took the notes that you were drawing and put them into my notebook. I've barely started a Network+ class yesterday and this is helping out!
+Trinidad Demon ...thanks Trinidad! I'm glad it helped.
Awesome video LAZ i use an app to get questions about VLSM and i work the answer all in my head and can do it all cause of your videos about subnetting.. you help me alot thanks !!!
Thank you so much Diego! I'm glad I could help 😎
You are a genius! I have always had issues with subnetting, even to this day and you make it look so simple. Great refresher!
+Emily Wagner ...thank you Emily! Glad to be of help 😎
Just look, listen, learn and practice...after that... every thing will be easy as 1,2,3...
Awesome teaching...Mr Laz!!
+Netzahualcoyotl De Tenochtitlan ...thank you!
You are the best and scariest tutor i have found online. I love you. You probably gave me nightmares.But i understand sub-netting! I may wanna cry too.
I agree I agree!!
I love this video that cleared all my doubts of the subjects I learn😊
Really enjoyed this and your old video on subnetting. Should mention though that on the class B example, you started with a /21 and finished with a /20 somehow. Am I missing something? Thank you for the seed you are sowing into so many lives.
You are the best. Very clear, precise & methodical approach. Well done!!
+shannybwoy ...thanks Shannybwoy!
your videos helped me to pass my MTCNA, thank you!
+Goodkat's corner ...AWESOME!
I can subnet when I write it all out, but trying to do it in my head beyond 3 subnets seems to be beyond my ancient brain ;)
Serious props to anyone who can do this in their head under pressure. We have a set time to do the Cisco practical exam, and I'm eternally grateful that my income doesn't depend on my ability to spit out subnets given 'x' hosts on a given network : I find myself second-guessing even the simplest arithmetic.
It happens to everyone, but practice is the key
Hey I'm not the only cisco person here!
I had to watch this 3 times to understand but now it's really simple thank you!
As long as you got it! That's what counts 😉
i wish to have live classroom coaching with you sir...its helped me a lot for my tests and also during placement for companies like cisco,juniper etc...you are classic....
Thanks pratap!
You moved your line right at around 19 minutes and 20 seconds changing your increments. Which increment is right? I imagine it is 8 before you changed it back to 16.
Just bought your book off amazon based on your video and style of teaching. Good stuff man--started with the A+, now going at the N+ and who knows what's next. Thanks for posting and you put this info out with numbers like a (Gov) pro--don't pay attention to the negative shit, you're above it.
Thanks!
Thanks to you, when I'm studying/practicing subnetting I am periodically yelling out "MINUS TWO..!" I hope I don't do it during the ICND1 in a couple weeks lol
Thanks Laz for your time putting these together and uploading them.
Sir, I wish I had you as my CCNA instructor, my instructor really didn't teach this stuff. Hooray for education unions!!!
you're truly a Doctor of Networking.
+4rl33 ...Thank you!
Thanks man, Best subnetting videos i have seen. Totally get it using the methods he uses for doing the math. I get it better without using the formula and working it all out and seeing it. Now that I can picture in my head the way the numbers move, the patterns etc. Then the formula makes sense.
This just made my whole weekend easier af! Thanks so much! Great, great video and super amazing explanation! Thumbs up!
+Lex California ...thank you Lex! Glad it helped 👍
The Networking Doctors I was sitting in college and was like "Huh? What? Where? WHY?" and didn't get it but as soon as I watched your video twice and did some calculation (if you can even call it calculation) I felt like cheating because it was sooo easy! :D I really, really appreciate the work you've put into it!
I just finished CCNA 3 and I'm about to start 4. Subnetting is just so scary/frustrating. Thanks for the great video.
+Evil Dude ...hey Evil Dude, it's not scary, that's what they want you to believe, don't let it get to you.
This made me feel like if Dwayne Johnson was my math teacher and IT networking teacher😂😂😂
good to see you Dr. Laz
This helped me immensely to understand subnetting. Thank you.
El Jefe, just bought your book. Appreciate your videos boss !
thanks pal, for any tutorial video that i have been searched for ip subneting on youtube this was the best clear and well explanation method .It help me much, for my respect I will give you +1 like and subscribe, again thanks and( btw on 19:27) you accidentally removed the vertical line than by mistake you shifting it (from8 to 16) left but never mind I know it was technical mistake and the cool is I still understand what you talking on. keep doing this pal you help a lot people awesome
ironically its the best Subnetting explanation i see on youtube
i love listening to you sir. thank you
Thank you so much.
One day I want be a master like you Doctor. I have followed you at the udemy and others channel like here on youtube. I want to purchase your book and become a little better. And who knows become a great master, like you. Thank you. Unfortunately, here in Brazil it's too expensive for me buy his book.
LAZ, I am asking this for my understanding, I know I could be wrong here but you want us to ask questions and gain understanding. On the class B example, I think you moved your line from 5 bits on to 4 bits on making it ultimately a /20. Because based on /21 wouldn't it have incremented by 8 instead of 16. I am asking for my understanding and if I need a digital slap, I am OK with that. Thank you. By the way, I am going to do your updated CCNA course once I get home. Currently, I am re-reading your book, The only IP Book You Will Ever Need! Subnet masking is where I have to keep practicing and get that clear.
I can not remember where I've already seen this man, but this way of explaining, that tired and drunk face is familiar to me.
I'm currently learning for N+ 006 and this is so great for me, still I need to watch few more times.
Thank you and do you have your book for Network ?
+yippee ki yay ...I have a book on AMAZON called "The Only IP Book You Will Ever Need!", but not a full Networking book. Will be working on that for the end of the year.
I wish I would've had you as my TCP/IP professor, I would've learned this in a much shorter time.
Muchas Gracias! I saw the old video earlier today but I think I got this down now. Exams on monday-
Ret me know if you passed
@@thenetworkingdoctors It worked out! The test did not have much subnetting but will be a whole lot of it upcoming practical.. I still need a little more practise before I see the subnet solutions on given assignments, making out the Right CIDR to hosts needed etc.
I love this man. He is beast in teaching. 💪
Thank you Ram!
Simple and easy to understand
That’s how I teach 😎
@@thenetworkingdoctors keep it up! would you mind help subscribe to my channel to encourage a new youtuber
sir your teaching way is the best (Y)
+rahul chaudhary ...glad you think so Rahul!
this feels like networking bootcamp, subnet! yes Captain Laz sir!
Hey Warren....I'll take it as a compliment.
Learning isn't easy for most people...but teaching is also hard.
I've applied my past experiences, being in the military, and used it to train people.
It seems to be working so far.
is that possible that 192.168.0.52
and 192.168.1.234 is in the same network?
by using class B 255.255.0.0?
how can you borrow 4 bits from the network side and have a /21? if 2^4=16 to give an increment of "16," it should be /20 (8+8+1111) for the 172.16.0.0. verify that please
LAWRENCE NYUMAH the increment value should be 8 for CIDR /21
I'm kinda glad that you changed up on the Class B midway through... It forced me to think!..Thank you.
your biceps are getting in my way
Question for anyone . For the ranges you have 192.168.100.32. 33-62 are usable and 63 is the broadcast where does 192.16.100.1-31 fit at? Wouldn't that be the first network and host?
Could you please tell me what equipment you are using to get this done? Our church is trying to produce some lecture and would love to do it in this format. Would you please share your knowledge?
Let me know what exactly you need help with and I would more than happy to help 😎 You could email me at: info@thenetworkingdoctors.com
what exactly happens when a range is full from hosts on the network....is it the next host that attempts to connect..say into a wifi network simply cannot connect? Is there something tells them they are out of the range ?
a big fun of you ,,,which technology you are using ? is it a tv or smart board you are writing on ?
You did more in 32 minutes than what our teacher did for daayyyyssss xD
Thanks man :D
Your welcome Aanjelo!
Hi There. I dont understand this. My private IP 4 is 10.204.1.76 and subnet mask is 255.255.255.0..i thought ip 10.204.1.76 is class A. how is my subnet mask 255.255.255.0 that should be class C? Please give me some help on this...
You make subnetting a peace of cake.
Thank you so much i was so confused on the subnetting but now it look easy !! Love your videos!
Thanks Cynthia!
why sometimes the start of counting number changes? 1,2,4,8,16... and when you count host it start with 2,4,8,16...?
your biceps get in my way
Thanks Mat!
That's my goal...once I'm able to cover the whole board, I've conquered! ...lol
now i understand subnetting......thanx to u
I work on school project where I have 150 consultants that need to be able to connect to server headquaters. Does that mean that they need to have IP that is within same subnet as those servers or is it enough that they are within same network?
What happens if they draw the line at 8 bit (last bit of Oktett),how do i know the increment number then?
Thank you! It really helps me lot, but i have a question. I'm a bit confusing. for example Network ID of 195.187.86.0 and the Subnets Required is 44. What is the Subnet mask, 1st available host address of SN1 and max # of host/subnet. Can you please make a simple solution for this. Thank you very much!
If I understand it correctly: subnet mask is /30 (255.255.255.252) - first available host in subnet 1 is 195.187.86.1 - and the max number of usable hosts per subnet is 2.
thanks sir,I learn a lot from your video,I can pass my ccna r&s
+andreas arif wicaksono ...AWESOME!
As a headphone user...My ears died but I got it...thanks m8
Very helpful! Thank you for the in-depth explanation!
+Mark Kubat ...thanks Mark!
Great video, thank you for sharing! This video really clears up some things that I was unclear on.
wooow...very good teacher
@18.00min of the video...I don't get why you move the line over there? Why put it there? How do you work out where to put it?
Thanks amigo! Great job!
Gracias compadre!
Hi thanks for helping me learn subnetting. I have question: You want to design a subnet mask for 172.29.00 for example. you want 30 subnets with up to 1900 host. what subnet do you use? following what you have said. i can use 255.255.252.0 which gives me 64 subnets and 2048 hosts or 255.255.248.0 which give me 32 sub and 4096 host. firstly am i correct and secondly and if yes which one do you use? are the subnets more important that the host in this questions? looking at the question do we count the host first and what ever the host are or the other way around.
Again thank you so much for making this easy!!!! and yes your biceps do get in the way lol
oh its so easy 😍😍😍 thnkuuuuu i have my exam today of networks.. n it really helped me a lot.. tnx a bunch
+Khuzaimah Rehman ...glad I was able to help :)
Thanks lot for sharing its really help me lot.. best explanation so far...
THANKS BRO...YOU THE BEST ..I HOPE I ACE THAT TEST ON MONDAY!!
I’m sure you will! ...I have faith in you!
Let me know when you do.
Laz 😎
I sure will ...Mr Laz!! 😎
Hi man following you around going up the ladder in subnetting, however if anyone can help me with the increments for instance 10.10.0.0 when we say increments just as an example 0-254 does it mean 0.1, 0.2, 0.3 until 254 or am missing something if anyone could point me to video or something (incrementing more than one octet i.e. class B) to refer to this video by the networking doctors "how to increment the "whats in-between" i understand everything else fine. all suggestions are welcome. thanks again.
you are the best av come across
Thank you! Finaly I know how to do that ... (After 3 years :D)
Thumbs up for awesome presentation. I have a job interview upcoming and this is great review.
Great session, you made it simple and easy.
+Deonta Hudson ...thanks Deonta!
Thank you for the vid! Clarifies a lot of the confusion!
+magicsmoke630 ...glad I could be of assistance Magic!
2 to the power of n bits minus 2 is for the hosts, not the network. so, why would you subtract 2 from the 8 networks in the first example??
Thank you Bas Rutten
Where is the X.X.100.127 broadcast address? Did doc made an error? at 16:02
What I wanna know is simple.
192.168.0.1 to 192.168.1.255 on 255.255.0.0 that have 65534 available IP and -1 because of default ip of router 192.168.0.1.
Gets my question sir?
please!
I wish my networking instructor was as good as you
Awesome I finally got the concept. Thank you.
You are welcome! 😎
i am soo excited learn this from you , thankyou !
+Aliah Shaffah Yahaya ...No, thank you Alisha!
I wish he did more examples. that mess up on the Class B threw me. :(
I will try to fullfil your wishes Draya👍
very well explained.
CIDR has changed to /20 in between
I'm starting to make sense of this now - thanks for the tutorial's.
+John Deeks ...AWESOME John!
I like the way you tutor Mr.Las!!! I was having a hard time getting the IP/subnet book from your website after entering my CC info. Would you check on that and make it necessary for me to be able to purchase the product. Great lecturing by the way and thanks
+RiseBB TechSupport ...the link on my site to get the physical book takes you straight to AMAZON. If, however, you're talking about the PDF of the book, then let me know.
+The Networking Doctors Yes Sir, the PDF... thanks
The best in the world!
+Hugo Floss ...thanks Hugo!
Thank you very much for this video!
+Arya Stark ...your welcome Arya!
Someone should explain to this gentleman the logic behind the undo function, so he doesn't have to erase lines manually when he screws up :) Otherwise thanks for the lecture.