IP Addresses Explained | Cisco CCNA 200-301

[@aadilkp5335]

Something is really attractive about your videos, the smoothness and simplicity in animations and colour schemes I think.. You will definitely succeed! Keep up the good work

[@Certbros]

Wow, thank you! Really appreciate the comment. Great to hear you liked the videos!

[@cafxne]

I've been studying networking for 3 years, never got the hang of it. I have an exam tomorrow at 9am. It is currently 11pm and I just found your channel, watched 3 videos so far and understood everything. You might be my saving grace! Thank you!

[@cafxne]

Hi, ended up with a JavaScript question, so sadly I couldn't use my newfound networking knowledge, but thank you nevertheless 😁

[@aryaswolves]

Thank you so much! im currently taking Cybersecurity class and the coarse is all over the place, this video helps put everything in perspective. Much appreciate it!

[@Certbros]

Thank you Bernet! Good luck with the course! I'll be making some cyber security related videos soon!

[@McNasty_619]

I've watched several different videos on topics covered in the CCNA 200-301 exam and I am very pleased (so far) with the content provided by CertBros! The content and information provided feels relevant, up to date, and coincides with the information provided on the text book for the CCNA 200-301. The content provided is helping refining the information that I am learning in the book as well giving me a secondary insight and broadening my perspective on Networking in general. I look forward to listening in to all the content provided as I grind out the text to get my certification! Also the 99 problems shirt is funny AF! lol

[@Certbros]

Wow! Thanks for taking the time to write such a great comment Mark! Really glad to hear you're enjoying the content.

[@ramansharma1953]

Class A IP addresses (0-127 NOT 126), where the 1st bit is 0, encompass the range of 0.0. 0.0 to 127.255. 255.255. This class is for large networks and has 8 bits for network and 24 bits for hosts GREAT CONTENT CERTBROS ! THANKS

[@Mangokyaw]

i was so confused on that, thanks for the explanation. and @7:20 how did you know that each class has how many host numbers?

[@user-yj7tj4mf2tv]

an error to correct,it's 7 bits for the network,bro .thanks for the hint !

[@fudoshin2776]

Your are an absolute Legend for making this. Thank you so much!!! I didn’t even have to pause or go back 10 seconds I understood everything

[@Certbros]

Thanks for the comment Zee! Great to hear you liked it.

[@ronthedon3106]

I get it but I just can't seem to put it in real world scenario also who is setting all theses addresses.. I need a real world example

[@alexgarett5195]

I teach this same method to freshmen and non-traditional. The difference is visually u do a much better job!!! So note 2 ppl reading this, I would check out his feed. Thank you for doing this, it takes a lot of work.

[@nilufarbagherzadeh8157]

you are absolutely perfect. the best tutor I have ever seen on youtube. thank you very much.

[@Certbros]

Wow thanks! I really appreciate the comment! Great to hear you like videos.

[@beinganaabraham5933]

@@Certbros your right

[@edwardtseco]

@@Certbros kmuy mk p,. Hh.. Makes MakesMhlmmhy G

[@mariannna3]

I literally paid for a whole course on networking elsewhere and somehow I cannot bear to open that course. Instead here I am on your videos during my leisure time. Your videos are very well made and something about the layout is just captivating 👌 Thank you!! And please make more videos! 😊

[@ADAPTATION7]

I love the analogy. Analogies make abstract ideas so much clearer.

[@Certbros]

Glad you liked it!

[@gamesappscracked8311]

i didnt believe there is something perfect until i watched this !!! this tuts should be official source of networking... keep up the good work !

[@Certbros]

Great to hear! 🙏 perfect might be taking it a little far though haha.

[@123arskas]

The King of Simple Explanations.

[@Certbros]

Thanks Arslan!

[@built4u2]

Thanks really helping me with my networking class where the teacher just has us read the book the whole time!

[@sararisotti6106]

I appreciate the simple class difference between A-C explanation, thank you

[@roweldavid4952]

This is helpful for me as a teacher, to explain complex subject in a very simple manner. You are a king of Simplicity.

[@Certbros]

That's really great to hear Ruel! Glad you found the video helpful.

[@annm.8231]

Again thank you. Where were you 2 years ago when I first started. You are a teacher!!

[@olafzijnbuis]

Very clear explanation. About as simple as the official RFC documents. I was just reading the one describing IP. I love the simple ASCII graphics they used. Your animations and diagrams are also superb.

[@USAF305]

Thanks a lot I am a IP student but the way you explained it gave me a better understanding from what I learned in class

[@nauticaorangewatchbg9923]

Im really struggling to understand computer networking, but this video really helped me as you would teach a kid in elementary school. Very good. Subscribed.

[@RandomShowerThoughts]

doing some review, and this is one of the cleanest explanations i've seen since learning this

[@Zephyr-tg9hu]

This is amazing! Found your videos with a quick Google search, and after watching this one I can say that I will definitely be subscribing and purchasing the full course.

[@Certbros]

That's really great to hear Zephyr! Welcome to the channel and good luck with your studying! If you have any questions, suggestions or anything else, just let me know.

[@Spaniards56]

Finally I found someone clearing up the reason WHY not bigger than 255 in an IP address. The course I am taking simply say between zero and 255

[@Certbros]

Glad to help Flavio!

[@user-sangsangd1v]

Amazing thx man . I almost got it slowly 😂... but u explained it wonderfull. Great Job

[@MrKarlfebel]

Beautiful explanation my friend...I'm a nube and this made perfect sense

[@STEAD-wq4cf]

thank you for this, your contents are well explained and easy to grasp and follow. I'm kind of a slow learner, this is helping me a lot!

[@johndripper]

An IP address is made up of 4 octets. each octet is 8bits long so 32 bits in total. So to calculate the number of hosts supported by a particular class we use - class A: (2^24)-2 = 16777214 class B: (2^16)-2 = 65534 class C: (2^8)-2 = 254 subtracting 2 because network id and brodcast id are reserved

[@pauljohn3792]

Thanks

[@nassim2799]

thanks i was trying to figure out how did he calculate that number.

[@haneefahaneefa4200]

How (2«24) (2«16)

[@johndripper]

@@haneefahaneefa4200 2 to the power 24 is16777216

[@amayawilliams3287]

Why is it to the power of 2?

[@gidrafkungu792]

Best tutorials I've seen on the internet

[@aaha2017]

thank you for the video. at 8:06, shouldn't it be like the following? Class A: 1.x.x.x - 126.x.x.x Class B: 128.x.x.x - 191.x.x.x Class C: 192.x.x.x - 223.x.x.x

[@DominantWhisper]

Thank you so much! What a breath of fresh air to see it explained so clearly

[@davidj3284]

Your videos have helped me alot. I found them by accident but i love the way you explain things and the fluidity and perfect pacing of your videos.

[@Certbros]

Thanks David. Glad you're enjoying them.

[@Randumb96]

That was a really clear way to explain a complex subject!

[@nobodycaresaboutyou5590]

watching all your videos before exams

[@chief4180]

Very explanatory and useful video. Glad I discovered this channel.

[@botRider600rr]

this helped me so much my professor literally couldnt explain it as well as you thanks for the explanation

[@44slimmy44]

Thank you CertBros! You are doing great work making me understand network part of computer world

[@barbobrien9318]

Lesson pacing and explanation exceed expectations. Thanks.

[@chanellw5586]

i really like your channel. all of the things i had not understood on t=certain subjects are thoroughly explained here

[@kebbymubita8763]

great explanation man! I liked your use of example, youre a good teacher

[@orleydoss3171]

The Bros are back👍

[@Certbros]

Good to be back!

[@eobardthaw]

Very spectacular information about ip's ,in sometime before i was lot of confusion within ip &how establish connection amid network but have after seen this video, will only say one word "perfect " , Keep it up & make more related ip address vlogs with some numerical example to understand how it execute behind network.

[@eobardthaw]

If you have seen this then send me your acknowledgement

[@ibrahimwahab9801]

This is one of the best explanation I could get on IP.

[@steventelfer8186]

Best CCNA free course ever! Thanks Bros

[@lonedruid3360]

Finally, a good analogies. Glad to find these channel

[@Maple_Syrup]

You've single handedly clarified so much confusion I had with your videos. The absolutely best and only person that managed to help me wrap my brain around these concepts really appreciate it man

[@croitoruradu4878]

Finally somebody who's not indian and knows really well how to keep things as simple as possible for a better understanding. Congrats and cheers.

[@Certbros]

Thanks! Glad you like the videos.

[@larcen51]

no need to be rude they know what they are doin

[@brendanfernandes9937]

Hey, Thank you so much for your videos, I’m deciding if I should pursue a career in IT and your videos definitely sold me into taking a course! Thank You 🙏🏼

[@sashamullinslassiter3771]

Your videos are absolutely easy to understand and very applicable to my studies in college. It helps so much to review your videos and is very inspiring to continue on to get CCNA certified. Thank you for creating these fantastic videos.

[@Certbros]

Thanks Sasha! Great to hear the videos are helping. Good luck with college and your CCNA!

[@itaybarok9405]

Wow the comparation between the houses on streets to computers on LAN was valueable. Thanks! I got a better intuitive feeling of the concept. Also I learned new thing such as this classes. I have a question for you, is this classification into classes useful? Thank you for this online short video it was done well so well done. Keep doing this.

[@Certbros]

Classes can be useful when dealing with simple or defualt configurations but we are no longer restricted by them.

[@alitabaker99]

Needed to re-learn some basics. Fantastic video!

[@Candaluk]

That’s the first time I wasn’t completely lost hearing this crap lol ... I need to watch it a few more times but you guys are amazing

[@Certbros]

That's great to hear! If you have any questions feel free to ask.

[@Candaluk]

CertBros very much appreciate and one thing you can count on ... I’ll be asking haha I’ll be watching more tomorrow ..

[@Certbros]

@@Candaluk Haha! Looking forward to it!

[@Sutatu]

I think you have a mistake at 9:06 you say the difference is that public addresses are unique while private can be repeated. But then at 10:10 you bring example to how public addresses can be repeated by 2 neighbors (your example). Can someone clarify this?

[@Sutatu]

Oh ok I think I understand now. When you say private = relative to the network the device is in. For some reason I thought private = company owned (like google)...

[@ItsssYossef]

those videos helped me so much thank you you are explaining very well and simple that amazing better than my teacher lol

[@mclandslotawuku]

You are massive because i have understood IP Addressing simply

[@enola2900]

I really loved your explanation, keep up the good work.

[@Mangokyaw]

@7:20 how did you know that each class has how many host numbers? and why is it not 127 between the class A and B?

[@eagle5818]

LOVE your videos! Such simplicity and quite easy to understand. Definitely recommending this channel to all my friends!

[@Tonystark-sg3dm]

Thank you CertBros. Really helpful video.

[@Certbros]

Great to hear it helped! Thanks.

[@m.m9804]

such a good approach, i appreciate it!

[@gcswargari]

Very well explained...👌

[@sudeeproy266]

You should have added few lines on loop back address cause some may get confused what happened to 127.x.x.x. Other than that great video. Really helpful.

[@Certbros]

Thanks! Yep, I've had a few questions about that. Next time I update this video I will definitely include it. Great feedback, thanks again! 👍

[@SzwarcuKX5]

Excellent explanation

[@Certbros]

No problem 👍 Thanks for the comment.

[@jaredprimo2386]

This is explain perfectly thank you!

[@naziashaheen7596]

Hey! so i watched 4 videos of yours back to back. They are simple and amazingly awesome. Thank you very very very very very much. One request: can you also post videos on SIP, H323, webex, cisco voice, cisco unity, cisco telepresence, cisco meeting server, cisco conductor, cisco tps, cisco tms. please :)

[@Certbros]

Thanks! Glad to hear your liking the videos! I'm focusing on the CCNA at the moment but if enough people request those then I'll definitely look to make some of these in the future 👌

[@ashleywalter629]

Thank you so much for making this easy to understand 👍

[@chuckstewart4833]

Great video!! Simple and easy to understand!

[@Certbros]

Thanks Chuck!

[@joendifor8474]

thanks for breaking down complex topics like these and make them relatable. Can you add a video on subnetting to complete this please!!!!

[@Certbros]

Thanks Joe! I'll be covering subnetting in my full course more but I'll definitely look to upload some to KZbin as well 😁

[@lyandradewasurendra472]

i really love this video. understood very well. thank you so much sir. true legent

[@Certbros]

Thank you Lyandra 👍 Really appreciate the kind words.

[@ljsmith9821]

Thank you so much this video was well put together and informative... Thank you.

[@Velo1010]

With IPv6 becoming more common I’m wondering if the IEEE will ever need to add another IP version, IPV7.

[@LEO179MX]

Best explanation I’ve watched👌

[@Certbros]

Thank you!

[@shariqattari2526]

Bros explanation is very good. Realllllly

[@Certbros]

Thanks man! Really appreciate it 👍

[@KishanKumar-mz3xr]

At 11:44, your IPv4 is 10.0.2.15 which belongs to class A, but the subnet mask is 255.255.255.0 which belongs to class C subnet. Why is that? Both should be of the same class I think. Thanks for your videos.

[@Certbros]

Great spot! We don't really use IP address classes anymore. That said, its important to learn then because they are still used in default configurations and routing tables.

[@johndripper]

its the default one you can change it but all devices connected to the router must have the same sub net mask

[@Mattvolko]

When u fight a 10 year old kid that they want to grab yo ip address and intimidate you

[@bambijimenez12charm]

I like your videos. I'm using them in my classes.

[@Certbros]

That's great to hear! Glad you find them helpful.

[@Theartist_of_GOD]

Thanks for the video! It explains very well!!

[@Certbros]

Thanks David!

[@soufianetaoufik7830]

Dude, you were born to be a teacher, when are you dropping the course ???

[@Oooluuuu]

I dearly wish you'd put a link to your previous videos

[@PurpleMomgoose]

Wish this were recommended over the crappy video tutorials that talk a lot but don't say much

[@sananselmospacescienceodys7308]

OK here's a very simple question that I hope someone can help me with. If I access the internet with my lap top computer from my home and then a second time form the WiFi at the local Starbucks does that mean I have two different IPs or is it the same one for both locations? Thank you.

[@Certbros]

Great question. You would actually use two private IP addresses (one for your home and one for your wifi) and two different public IP addresses (one assign to your home and one assigned to Starbucks). Hope that helps 😁

[@sananselmospacescienceodys7308]

@@Certbros That's good to know. Thank You. 🙂

[@nadeemahmed-im7yy]

Very informative and easy to understand.

[@cactusdlo8774]

random personal fact: this is the first video i find with 0 dislikes

[@Certbros]

Haha love it! You tempted to give it its first dislike? 😂

[@cactusdlo8774]

@@Certbros but then i’d have to find another one with 0 :p

[@chrisbowen2093]

Thanks you from Indianapolis, Indiana, Mate!

[@Certbros]

Thank you Chris! I would love to visit Indiana one day

[@chrisbowen2093]

@@Certbros I've lived in 7 different states, and two continents, Indiana and the people are awesome.... there may be prettier states to look at, but Hoosiers are some of the friendliest you're ever going to meet! You should certainly come for the Indy 500! Tickets are already on sale for next year's race. If you plan a trip, let me know, I would love to show you around. I'm going to have to look at wearing some of your gear, since I share your initials!

[@Certbros]

@@chrisbowen2093 Thanks Chris. Really sounds great! I think I'll have to do it as part of a larger trip to America. My little Island is a few hours away so it makes sense to visit a few places. I dought I'll make it next year but I might just take you up on your offer to show me around one day! I really appreciate it. Haha! oh yeah, CB! 😁

[@ravurivivek581]

About subnetmask of your system using in class C but your ip in class A can you miss something to teach for us?

[@GuilhermeMilhouse]

Hi! Great video! Thanks! (Last line of the description says "Private class B addresses are between 192.168.0.0 - 192.168.255.255". *class C)

[@Certbros]

Great spot!! I've fixed the description now 👍 Thanks for the heads up.

[@aprilhillman4950]

I am confused about the statement that all IPv4 addresses have been allocated for yet we are still being assigned them from internet providers? Please explain :) Ty! x

[@SpeaksYourWord]

I want to get into cyber security but I just don't seem to understand networking. Never had any problem programming, using linux or hardware but networking is just beyond me.

[@Certbros]

Networking is a really important skill in cyber security. This playlist will hopefully hep you out. Good luck!

[@fredjfahed1358]

A masterwork congratulation

[@Certbros]

Thanks 👍

[@pallabmandal4104]

At 11:47 the IPv4 address is 10.0.2.15, so it seems to be of class A. However, the subnet mask is 255.255.255.0, which is the subnet mask of class C. Why is this so? Am I understanding something wrong?

[@Certbros]

Great question! Although its important to know the IP classes, we are no longer restricted by them. We can use 10.0.2.15 and use the subnet mask 255.255.255.0. This is called classless IP addressing.

[@pallabmandal4104]

@@Certbros Oh! I see. Thanks. And btw, I didn't expect you to follow comments on such old videos! So, thanks again, it helps guys like me, who don't have any support in this subject a lot.

[@Certbros]

No problem Pallab, happy to help when I can! If you get any questions just ask 👍

[@pehlvinbj7015]

Great explanations on the Ip address

[@Certbros]

Thank you. Glad you liked it.

[@mOlEaaa]

Do on cybersecurity and software engineering as well ❤❤ 😮

[@deflygendehaiene8298]

I love your explanations!

[@Certbros]

Thanks! Glad to hear it👍

[@xiaonanfan6543]

to be honest ， i think this video is fantastic, but i hope your videas can become longer ,in which i can know more detailed informations about network.

[@Certbros]

Glad you liked the video and I appreciate the feedback.

[@mygodisable2]

I'm new, this is good. Great teacher.

[@Certbros]

Thank you Deborah!

[@mikewazowski3009]

Hii, Why your network has the class A private network address, but class C subnet mask?

[@vance7596]

good Stuff- makes it so interesting

[@neumaribeiro3068]

thank so much for sharing this video!

[@Certbros]

Glad you liked it!

[@shribachare]

Liked and Subscribed ... As it's worth

[@mitchellthomas2686]

@7:16 I don't understand how you got the 16,777,214 figure for available hosts in Class A and further for the Class B and C.

[@johndripper]

An IP address is made up of 4 octets. each octet is 8bits long so 32 bits in total. So to calculate the number of hosts supported by a particular class we use - class A: (2^24)-2 = 16777214 class B: (2^16)-2 = 65534 class C: (2^8)-2 = 254

[@mitchellthomas2686]

@@johndripper where are you getting the powers of 24,16,8 from though?

[@mitchellthomas2686]

I think i just answered my own question - 3 octates = 24, 2 octates = 16, 1 octate = 8

[@mlclxt8389]

Thanks for explaining the IP address class system

[@Certbros]

Glad it was helpful!

[@moosemoose337]

Great video series. May I ask why is a subnet mask necessary if devices have MAC Addresses?