Same here. 4 semesters of very confusing and cumbersome networking classes and this guy comes out of nowhere teaching stuff better than any college professor as if it was easy.
@@jmelchor29the problem is that amazing teachers can make complex information super simple, while a bad teacher is an expert complicating things that are actually simple
College is still valuable, honestly if you have all these certs + a degree you’re getting picked for the interview over someone who just has certs. But yes this is very good for a free option and network chuck makes it exciting and interesting
We didn't get any questions at the end of this episode. Can we continue with questions? It helps pick the brain and actually allows you to think about what you've just covered. That's just my feedback. Overall amazing content. Keep up the good work!
I seriously wish my Netowrking teachers at UNI taught more like this rather than from a pre made presentation, I am so much more of a visual/hands on learner so when they just talked from a slide that didnt show much then threw us into a lab and expected us to know exactly what to do made it hard.
Dude you and I both. My UNI professor, who i really like, never did stuff like this w us. And in the end I had to go and learn it myself watching videos like this.
Traditional school is obsolete. This video is a perfect example why! I can't describe how grateful I am for this content, while also being simultaneously angry about all the wasted time from traditional shitty classroom "learning"
Teaching like that goes hand in hand. Presentation about a topic covering sumurised infromation > Reading more in depth about what the teacher presented > Practical exercise > Test on the chapter. It's by far the easiest way to learn something. I had no problems learning when i found this out for myself, Teacher had a presentation for 10-15 minutes about a chapter, then i read through the chapter in the book after that i did a practical exercise or try to think of a few situations where it could be applied and then i was done for the rest of the chapter. A example by what i mean with trying to think of a situation where i could apply what i learned in the chapter using the video as a example would be building up a different network with 3 switches and a few computers in each network and then on papper, note how they can communicate with each other. And thats all i would need to do to score perfectly on the test afterwards. I usually did this in one lesson and then could spend the rest of the week doing whatever i wanted , then the day before the test i would have a summary of the chapter and just quickly go over it. I went from barley passing to straight A's and sometimes A+ (which is the highest grade u can have here)
I'm really amazed with the quality of your content. I'm computer engineer and I really appreciate what you're doing. Congrats and best wishes for this channel.
I know I'm late to the party, but your series has (even at two episodes) been incredible. The information sticks and makes sense. I look forward to the rest of them.
I don't know I am starting to think he is full of shit... He may know the information, but this is a bunch of bullshit that no person would know starting off. After being in Networks now for awhile, this is stupid if this is for beginners. Garbage.
You’re not late. I’m just now studying for my CCNA and I’m on day 2 ❤ so technically, you’re already 4 months ahead of me, if you’re still studying by the time you read this!
🔥🔥 Dude you are the best IT guru out there, I've done my CCNA in 2011, but no one has explained topics like you do, You dont just explain "How" but you also explain "Why", adding it with analogies, that's what a great teacher does. Explaining the WHY with ANALOGY. You will be remembered for generations🔥
I'm pretty much just teaching myself this stuff for fun because I am interested in tech and all and I really learn alot from these videos. But what I love most about them is not the easy to follow explanations or the style of the presentation, but rather the enthusiasm Chuck shows in his videos. Seeing him be so excited about the material makes listening and learning from him so much more enjoyable.
Dude, I appreciate your ongoing efforts in making content like this, not only available to people but accessible as well. I am a senior network/security administrator with a 12 year old daughter who just started her CCNA journey. She loves your approach and method of teaching; basically it's a huge IT world that is an essential part of our lives. Learning about it is no longer just the domain of nerds, it is something that we should understand, same as we know how to check the oil or coolant in our cars, change the filters in our vacuums, or know how to balance our (virtual) checkbooks. I'm a fan of your teaching style as well. Between you, Jeremy Cioaro, Keith Barker, Knox Hutchinson, (just to name a few) and (humbly) myself, the next generation of IT engineers is taking strong root in my house. Thanking you immensely for your work.
Man looking at other courses normally dealing with the OSI layer I would get so confused. I love how you were able to show us both physically and through Cisco Packet Tracer. This made it 10 times easier for me to grasp this concept. Thank you, Chuck!
Good luck with that, you are not going to see that bullshit in the real world. I know from experience. Packet tracer is okay, but it is still a load of shit. When you are actually working with switches and end devices you are not going to see menus like that at all. You will be SSH using something PUTTY, to log into the switch. This is clown shit...
you're a perfect instructor, I haven't seen anybody teaches with this brilliant techniques and this quality, thank you for your effort, you make learning much easier
Chuck, you’re a God send! Keep doing your thing. Two years ago I was sitting on my couch with a beer discouraged about my current career. And for some reason, I landed one one of your videos, and your passion inspired on a journey to change my career! It’s been a lot of grinding but I can always count of your, what I call a “Packet Sermons” to get me pumped to study!
Chuck, thanks for all you do for us. I am a Electrical Superintendent and was transferred to a new project as the security manager. With that I have to do networking with cameras and changing their IP addresses, going from Fiber to Cat 6 because of the distance. I had no idea what I was doing. Know I know about using a switch and router. POE was like, what are you talking about, the elephant in the room. Thank you for these video's, they are such a big help. Know I know how to change the IP address on the cameras. Again, you ROCK! I am almost 60 years old and I know you have thought this old dog new tricks. LOL.
I already have my CCNA, I’m still watching! Good to see how different people teach the same topics. When I was studying it helped to have multiple ways of studying, I understood some things better reading, labs, and, other things by video. Even different ways people explain, different topics “clicked” better with different people explaining topics.
@@CaptainJleeb probably not, but everyone is different. I had to use the study guide and watched videos. If I didn’t understand a concept by reading, I had to dig deeper and find other reading material and more videos.
This guy is incredibly motivating. I wish all teachers were this passionate about what it is they are teaching. Just look at the way he explains the simplest things, he does it in such a joyful way! You can really tell how much he loves this stuff.
You're the best instructor I've even seen !!! The way you explained, the energy, the animation ... make the content very easy to understand and fun to watch. Thanks you so much !!!
I started to learn like a month ago and I need to admit that your content is top notch, I knew nothing about computers and networking and now I feel like it's all making sense! Also I work as a barista, now I try to change my career slowly, so seeing you drinking filter coffee on every episode makes me so happy! :D Thank You very much and greetings from Poland!
after watching video i realized that teaching is really a skill not anyone can have very good job you actually explained in 20 mins what my professor didn't in 2 hours ❤
I've been a Network Engineer for 4 years now and so far this course has been one of the easiest to follow and understand thoroughly. I watch a ton of training materials and would really like you to consider a CCNP-ENCOR series! Keep up the great work!!
This course is great. I love how you break it all up. It's helping me refresh for a big job interview currently. If only it were all finished already! Keep up the good work Chuck.
I'm taking a CCNA class right now and have been watching these videos as supplemental content. I don't particularly care for networking (sorry), but you make learning about it a lot easier and much more enjoyable! Thanks, Chuck!
Recently became an IT sales manager. Chuck you’re helping me learn the language that the wizards keep talking to me about assuming that I’m not just a knuckle dragging ape that can convince people to buy things! 😂😂😂 thank you ❤
Great content, gonna watch the rest of the series, but I wanted to post here before I forget. Do you end up covering the WHY of some of it? like, "Why can't a router do it all?" or "Why bother with the "MAC address, why doesn't a switch just map IP addresses?" On the surface it seems like an unnecessary complication though I'm sure there are good reasons why.
13:40 He means Johnny for anyone that may have gotten confused for a sec. Again thank you for your free lessons, highly appreciated. Would love to learn more from you!!! very easy to follow
Hey Chuck, Great content! I am going through a course to get my CCNA and I am supplementing it with your videos because they are so dynamic and well put. You are gifted to teach and its excited to see it. keep it up! Prayers for you and your family.
This has been huge for me. I took a career break and realized I still wanted to be in the IT industry. Massive thank you, Chuck. You're going to be a major part of why I am getting certified.
If you know your computers already. You can easily cut the time down in half. I’ve heard some people went into the field with neither of these and made it through until you get to higher paying jobs.
Your enthusiasm is so contagious! I work for a major telecommunications company. Right now I am in construction. I put the telephone poles in the ground and physically run the fiber/copper. I absolutely love the job, but I don’t want to be climbing poles in the winter when I’m older. Your videos are easy to follow and I’ve learned so much already. I’m excited to learn more.
Just getting started on this journey , i really enjoyed the quiz on day 1 and was looking forward to one at the end of every session 😂 Your work is amazing !
I didn't know I didn't know and wanted to know! Amazing content! Yesterday I was just an engineering thinking about hit network and a switch, now I'm an engineer going to impress our IT department and give them prop's for their work 👌👌
I've spent about a week studying the OSI model and explanations about packet routing and layer 2 stuff, but none of it clicked until now. Thank you so much!
I love the simplicity in the explanation. Once thing I will add is when the ARP request message is broadcast to all ffff....! and once the destination send the ARP reply back, the switch will not flood everything again because the switch remember on which interface the ARP request came from(the source).
Quick question : How does my router get Mac address of my cloudflare/Google DNS server 1.1.1.1 or 8.8.8.8 ? Is it sending ARP requests to all subsequent router's between my router and the one directly connected to the DNS server ?
Hi Nik. Good question, and to answer it, your router never learns the MAC address of your preferred DNS server(s), unless he is part of the 1.1.1.0/24 (1.1.1.0-1.1.1.255) or 8.8.8.0/24 (8.8.8.0-8.8.8.255) networks. MAC addresses are only learned within the same network. Whenever a frame is sent to a host that’s not inside your network, that frame will always be forwarded to a gateway, and only the gateway’s MAC will be learned. For e.g. let’s introduce another router into Chuck’s lab that Google’s DNS server (8.8.8.8) sits behind. You are in the 10.1.1.0/24 network along with your router, however, your router is also part of the 10.2.1.0/24 network shared with the second router, which is part of both the 10.2.1.0/24 and 8.8.8.0/24 networks. Whenever you want to talk to 8.8.8.8, you’re going to forward that to your router, which first requires you to learn his MAC address. Once your frame reaches your router, because it’s also not part of the 8.8.8.0/24 network, it forwards it on to his gateway, which is 10.2.1.1, and he will have to learn its MAC address. Once he knows the second router’s MAC address, he forwards the frame onto it. Finally when it reaches the second router, who is part of the 8.8.8.0/24 network, the second router sends an ARP request to learn 8.8.8.8’s MAC address after which your request finally gets delivered to him. As you can see, only the router that’s part of the DNS server’s network has to learn it’s MAC address, so your router will always just learn the MAC addresses of hosts that are part of the same networks it belongs to. Hope this answered your question. :)
Check out 7:20 There's a lot more to it that he'll probably get into in later episodes but basically, first, your device makes a query for 1.1.1.1, and your router checks what subnet it belongs to, in this case we'll use 192.168.0.1/24 (which is 192.168.0.0-192.168.0.255, google CIDR notation or "subnet cheat sheet" if it's confusing) as an example. since 1.1.1.1 is not located between 192.168.0.0 and 192.168.0.255, it forwards the request to the gateway configured on the router. The router above yours is run by your ISP, and has an entire block of public IPs, (let's say 20.0.0.0/24) that it allocates from for your use, usually through DHCP (don't worry about DHCP now, basically it's a way of giving out ip addresses as demand calls for them) and it checks within that new public address IP block for whether 1.1.1.1 is there. Since 1.1.1.1 still isn't between 20.0.0.0 and 20.0.0.255, the router will forward the request to the gateway above it. At this point you are probably talking BGP, (which there are a lot of videos about and you can search for if you're interested), but basically the BGP router will check its routing table and check for which IP blocks in its routing table *does* contain 1.1.1.1, *or* which of its peers can get there. For sake of argument and simplicity we'll say that your ISP peers directly with Cloudflare/ARIN and that the router can find what it's looking for directly. Then, the process gets reversed. The BGP router run by Cloudflare (the one we're trying to find 1.1.1.1 on) will be advertising 1.1.1.0/24 and at this point the packet follows this route because 1.1.1.1 *is* between 1.1.1.0 and 1.1.1.255. Then it goes down a router and let's say the router says you can find 1.1.1.0/30 (1.1.1.0 to 1.1.1.3) below here. At some point on the other end you hit a point where there's never an advertised level that's lower than you currently are, and then it checks the routing table for the MAC address and subsequently the server you're looking for, then the response reverses the process back to you. I was making some gross simplifications and assumptions here that I'm sure someone will comment on but basically it's like finding a specific chair in a specific room of a specific floor of a specific skyscraper at a specific building number of a specific street of a specific city in a specific country. Start at the little and work up till you hit as big as it gets, go across, then work back down in reverse till it hits the proper destination. chair-room-floor-building-block-city-country to country-city-block-building-floor-room-chair Also if you were wondering how 192.168.0.1/24 was located inside 20.0.0.1/24 lookup "RFC 1918 reserved address space" and "Network Address Translation" PS hopefully all of that makes sense Edit: @Reginald Greyling has a much better and more succinct answer than I put, didn't see it till I refreshed the page
This is absolutely the best content to learn networking. I have no intention of giving CCNA but I wanted to.learn about networks and Chuck has made it so.simple.and Intuitive. Bravo
What is a NETWORK ROUTER? FREE CCNA Course 200-301 - sponsored by the Boson Summer Sale 25% off: bit.ly/bosonexsimccna (affiliate) Watch the whole course: bit.ly/nc-ccna Go deeper: ntck.co/ncccna 🔥🔥Join the NetworkChuck Academy!: ntck.co/NCAcademy 👊👊👊support the mission, join thisisIT: bit.ly/thisisitio ☕☕OFFICIAL NetworkChuck Coffee: NetworkChuck.coffee ☕☕ Watch the whole course: bit.ly/nc-ccna Install Packet Tracer: bit.ly/packtracer CCNA Episode 2 Packet Tracer Lab: bit.ly/ccnaep2pt 0:00 ⏩ Intro 1:11 ⏩ remember switches? 1:57 ⏩ what is a ROUTER? 2:54 ⏩ do we actually NEED routers?? 4:16 ⏩ what is ARP? 7:17 ⏩ Life without a ROUTER!!! 9:44 ⏩ routers SAVE THE DAY 14:20 ⏩ SNEAK PEAK.....DNS 18:44 ⏩ Your 1st Router command
So I assume this course will be centered around the new CCNA? I just passed my Network+ and have been using the Testout version of CCNA. However even though I understand the concepts it never walks me how to practice taking a router from my classroom, resetting it, and actually getting it to route my vlans without connecting to an already existing LAN. I have a managed Cisco Catalyst switch at home running off a SOHO. I would like to take an old Cisco router and start running Windows Server at home to get experience for my first job. I graduate college next month at have a good number of CompTIA certifications. I have yet to take the new CCNA until I find a good study source that covers the NEW test (after feb 2020). I can get it working on packet tracer but I could not get it working in a sandbox in my class lab.
The clarity, the context and the level of engagement that you teach this is unmatched!! I couldn't even make it half way through other courses because I would be falling asleep! I would give this 100 likes if I could!
One of the biggest duh realization I had on this topic was that “no, devices are not really assigned IP addresses. Interface are assigned IP addresses.” It helped a lot in my journey.
I am part of an online certification program that covers the CompTia A+ Hardware and Software, Network +, Security +, Cisco CCNA, Cisco Cyber Security, AWS Cloud, and MOS application in a 12 month time period. Thank you for giving us such a valuable gift. Without it I would be struggling big time. You present information in an informal and relatable way..so thanks again
You have a real talent of only telling people what is absolutely necessary and only revealing new information when they're ready to learn it; in a way that is easy to follow and understand!
I've just come across your channel and making my way thru the CCNA series. I've watched a few other CCNA videos and they were dry and difficult to follow, but not yours. The hands on visual way of explaining the principles has given me the enthusiasm to work towards my CCNA again.
this is way better than my university course. the way you explain and show things keeps me really intrigued and interested that I am enjoying the learning process. thank you
Dude you took something most people teach in a boring and mundane way and made it super fun. I have been coding for 3 years and am super interest in diving low level and networking knowledge has always been a barrier to entry for me. You are making this stuff fun to learn.
I just can,t stop myself from watching this amazing content. i just want to say that plz don,t stop keep going . and i promoise i would do CCNA certification through your videos. you are an inspiration
I found your channel while searching for information to configure my own home network. Completely enthralled with networking and how it works now, and absolutely loving the "free ccna" course. Big thanks from NZ for the quality content.
Absolutely INSANE what a difference a good teacher can make. Really appreciate your enthusiasm and energy, only other teacher I've ever come across on this level is David Malan from CS50 - you are in good company. Makes me excited to learn this. Thanks again!
Such a good way of explaining complicated stuff !! I literally went many through networking tuts like for ages and this is the first time I got a complete clarity on the topic!! I JUST LOVED YOUR CONTENT it's probably the best out there!
man you make this nice and simple. Ive recently got in to my first IT job, i started off with help desk , then i got moved to a mobile team due to my background, i started to learn and talk to some of the guys who are in networking and what they do is really interesting they mentioned if i wanted to work my way there i should get my CCNA cert, Your videos are some of the first i found and its super easy to follow along, i appreciate your content!
Just starting out in the 'IT world'.....9 months into my level 3 apprenticeship and these videos have helped me so much to understand and follow the basics. Thank you!
Ok I just started learning about all of this couple weeks ago on Coursera and i really just want to say how much i appreciate these classes. I'm doing my courses on there so i can be accepted into this college but haven't learned anything. Just basic info to pass quizzes but that's it. Ur classes actually keep me engaged and wanting to learn more and with my ADHD that's very hard to come by so thank you so much. You have no idea how much that makes me happy
Just keep in mind his video series is not complete. There's still a ton of information he hasn't covered which is important to know if you're going for the CCNA. He's a good presenter, but he still needs a lot of work to get his series finished.
I just joined in and I am completely blown away. I've been around computers since the early 80s and simply used them; not realizing that I should have gotten more familiar with the inner workings. Thank you for this superlative content 🙏 👏
Hey Chuck, so I just wanted to say thank you for these videos. I love watching them even though I already know this stuff its just a great way that you teach it. I took Cisco Networking in my senior year of high school in BOCES/Vocational School. It is always great to get a refresher on what you learned that you might forget.
I'm starting these videos without anything but basic gamer knowledge, I've always wondered how those messages work. I mean at first it was a simple question, now I just want to know more. It does look insane omg, I love it
I did an HND and a degree in IT (that's 5 years of learning this stuff) and I have to say that this is the first time i have ever actually fully understood what the teacher was saying. Thank you so much, i'm starting to believe that i might actually be able to pass my CCNA exam thanks to you
Thanks for all your help, brother! I have my BS in CyberSecurity and I am going back to Georgia Tech for my Masters. In between, I will get some of the certifications. I am a deputy at a jail in Florida, a liaison between security and IT. I have almost 16 yeqrs years in and a little over 8 years left until retirement, at which point I want to really hit hard with in this field and start a new. I have 3 children, and 2 are autistic. My son is further down on the spectrum, so when I retire, I want to set myself up for something remote. Thanks again. You have helped me garner and understand the information where I am actually gaining some confidence.
I'm amazed at the content you've created here. I started my degree in Cyber Security and one of the required courses is CCNAv7 via Cisco Netacad. Since it's a distance learning university, there aren't a lot of face-to-face explanations of the content. These videos have made the information easier to digest and have reaffirmed my love for IT. Thanks again!
This just gives me so many reasons of inspirations to do the same for this community of innovating curious peacocks just newly entering the field. I'd love to sometime start and educate people for free, support and give back to the field, what it gave to me... Internet is definitely a miraculous invention, and I can't thank the previous lords of networks and computers to bring about such an event
I'm studying Sys Admin and Networking and last year I had to drop Networking because I didn´t get the basics. Thanks to your videos I can learn the basics and follow the subject this year.
I must say " This is the real content".
Couldn’t agree more. This is awesome.
So, go and take an exam.
Yes 👍
tell me you aced your ccna!!
Buddies got no right making Networking this fun and interesting.
Learned more in these 2 videos than I did in my entire networking course at college. Bro you are killing it with these.
Same here. 4 semesters of very confusing and cumbersome networking classes and this guy comes out of nowhere teaching stuff better than any college professor as if it was easy.
Dude me2 I was convinced I was too dumb to learn but this dude explains things so well.
@@jmelchor29the problem is that amazing teachers can make complex information super simple, while a bad teacher is an expert complicating things that are actually simple
@@justpassingby9825 no doubt brother
College is still valuable, honestly if you have all these certs + a degree you’re getting picked for the interview over someone who just has certs. But yes this is very good for a free option and network chuck makes it exciting and interesting
We didn't get any questions at the end of this episode. Can we continue with questions? It helps pick the brain and actually allows you to think about what you've just covered. That's just my feedback. Overall amazing content. Keep up the good work!
Who would dislike this?! It's free fun education.
You're not doing it right unless you have at least a few haters.
Juniper people O.O /s
People trying to sell an education, probably.
@@jong2359 Haha! If that's the case, they would be better off putting time into improving themselves than getting all salty.
@@AlphaZeroOmega They are too used to doing nothing and collecting all the money... they only know how to improve profit margins ;-)
I seriously wish my Netowrking teachers at UNI taught more like this rather than from a pre made presentation, I am so much more of a visual/hands on learner so when they just talked from a slide that didnt show much then threw us into a lab and expected us to know exactly what to do made it hard.
Exactly!!!!
Dude you and I both. My UNI professor, who i really like, never did stuff like this w us. And in the end I had to go and learn it myself watching videos like this.
Traditional school is obsolete. This video is a perfect example why! I can't describe how grateful I am for this content, while also being simultaneously angry about all the wasted time from traditional shitty classroom "learning"
Teaching like that goes hand in hand.
Presentation about a topic covering sumurised infromation > Reading more in depth about what the teacher presented > Practical exercise > Test on the chapter.
It's by far the easiest way to learn something. I had no problems learning when i found this out for myself, Teacher had a presentation for 10-15 minutes about a chapter, then i read through the chapter in the book after that i did a practical exercise or try to think of a few situations where it could be applied and then i was done for the rest of the chapter.
A example by what i mean with trying to think of a situation where i could apply what i learned in the chapter using the video as a example would be building up a different network with 3 switches and a few computers in each network and then on papper, note how they can communicate with each other. And thats all i would need to do to score perfectly on the test afterwards.
I usually did this in one lesson and then could spend the rest of the week doing whatever i wanted , then the day before the test i would have a summary of the chapter and just quickly go over it.
I went from barley passing to straight A's and sometimes A+ (which is the highest grade u can have here)
amen 🙏
I'm really amazed with the quality of your content. I'm computer engineer and I really appreciate what you're doing. Congrats and best wishes for this channel.
so cool see you around here! Dos creadores de contenidos de alto calibre. Un saludo Dani
Genial! Yo sigo a ambos también
Wow, que asombroso
Wow it's amazing 😮😮
In nomine Patris et Filii et Spiritus Hacking
As a computer engineer what advance would you provide most about getting into the tech world?
I know I'm late to the party, but your series has (even at two episodes) been incredible. The information sticks and makes sense. I look forward to the rest of them.
I don't know I am starting to think he is full of shit... He may know the information, but this is a bunch of bullshit that no person would know starting off. After being in Networks now for awhile, this is stupid if this is for beginners. Garbage.
late as well
You’re not late. I’m just now studying for my CCNA and I’m on day 2 ❤ so technically, you’re already 4 months ahead of me, if you’re still studying by the time you read this!
im even later and i agree
@@corellonable did the link for the practice lab work for you?
This is The Most Complicated Coffee Advertise that I EVER Watched!! :D :D :D
lOl
Came for the coffee, left addicted to Xanax 😳
...and he didn't even sweeten it!!!
I've watched this three times already. I can't believe he is teaching this stuff for free.
Man these videos are so fun to watch! Keep it up!
Thanks Jeremy! Congrats on the CCNA pass btw
NetworkChuck + Jeremy = > Who said CCNA is hard?
You both are awesome.
Agree
@@abdulsarker9836 where is david bombal anyway
🔥🔥 Dude you are the best IT guru out there, I've done my CCNA in 2011, but no one has explained topics like you do, You dont just explain "How" but you also explain "Why", adding it with analogies, that's what a great teacher does. Explaining the WHY with ANALOGY. You will be remembered for generations🔥
this is like a movie, its hard to wait a week for an episode.
I'm pretty much just teaching myself this stuff for fun because I am interested in tech and all and I really learn alot from these videos. But what I love most about them is not the easy to follow explanations or the style of the presentation, but rather the enthusiasm Chuck shows in his videos. Seeing him be so excited about the material makes listening and learning from him so much more enjoyable.
Dude, I appreciate your ongoing efforts in making content like this, not only available to people but accessible as well. I am a senior network/security administrator with a 12 year old daughter who just started her CCNA journey. She loves your approach and method of teaching; basically it's a huge IT world that is an essential part of our lives. Learning about it is no longer just the domain of nerds, it is something that we should understand, same as we know how to check the oil or coolant in our cars, change the filters in our vacuums, or know how to balance our (virtual) checkbooks. I'm a fan of your teaching style as well. Between you, Jeremy Cioaro, Keith Barker, Knox Hutchinson, (just to name a few) and (humbly) myself, the next generation of IT engineers is taking strong root in my house. Thanking you immensely for your work.
haven't seen anyone with high enthusiasm to teach like you. Thanks, Chuck
Man looking at other courses normally dealing with the OSI layer I would get so confused. I love how you were able to show us both physically and through Cisco Packet Tracer. This made it 10 times easier for me to grasp this concept. Thank you, Chuck!
Good luck with that, you are not going to see that bullshit in the real world. I know from experience. Packet tracer is okay, but it is still a load of shit. When you are actually working with switches and end devices you are not going to see menus like that at all. You will be SSH using something PUTTY, to log into the switch. This is clown shit...
you're a perfect instructor, I haven't seen anybody teaches with this brilliant techniques and this quality, thank you for your effort, you make learning much easier
I'm taking the CCNA certification in a couple of weeks so any content related to that is really appreciated! Thanks man keep the good work!
Good luck with your cert test
Good luck, dude! Check placefortech.com
How'd you do??
Did you pass it bro 👀
4 years later....
But just have to say;
You are the "Dog whisperer" of teaching Networking!
Thank you so much for the effort, energy, and knowledge!!!
Chuck, you’re a God send! Keep doing your thing. Two years ago I was sitting on my couch with a beer discouraged about my current career. And for some reason, I landed one one of your videos, and your passion inspired on a journey to change my career! It’s been a lot of grinding but I can always count of your, what I call a “Packet Sermons” to get me pumped to study!
Chuck, thanks for all you do for us. I am a Electrical Superintendent and was transferred to a new project as the security manager. With that I have to do networking with cameras and changing their IP addresses, going from Fiber to Cat 6 because of the distance. I had no idea what I was doing. Know I know about using a switch and router. POE was like, what are you talking about, the elephant in the room. Thank you for these video's, they are such a big help. Know I know how to change the IP address on the cameras.
Again, you ROCK! I am almost 60 years old and I know you have thought this old dog new tricks. LOL.
I already have my CCNA, I’m still watching! Good to see how different people teach the same topics. When I was studying it helped to have multiple ways of studying, I understood some things better reading, labs, and, other things by video. Even different ways people explain, different topics “clicked” better with different people explaining topics.
If i study just from him is it gonna be enough for the exam?
@@CaptainJleeb probably not, but everyone is different. I had to use the study guide and watched videos. If I didn’t understand a concept by reading, I had to dig deeper and find other reading material and more videos.
@@CaptainJleeb Have you done studing networking bro by now. ?
@@nishantdalvi9470 nah bro I'm currently enrolled in a tuition course, there's a guy he's a network engineer, so i pay him and he's teaching me
u done?@@CaptainJleeb
super helpful video. I liked how the first one had a quiz at the end. I would've liked for you to continue with that quiz at the end approach.
This guy is incredibly motivating. I wish all teachers were this passionate about what it is they are teaching. Just look at the way he explains the simplest things, he does it in such a joyful way! You can really tell how much he loves this stuff.
Woah! I hope everyone interested and taking this career field seriously discovers this channel! This is great! No teases, real substantial content
You're the best instructor I've even seen !!! The way you explained, the energy, the animation ... make the content very easy to understand and fun to watch. Thanks you so much !!!
Bro taught me more in networking than my entire Engineering lol. Thanks a lot for making it free. You are a real gem.
I started to learn like a month ago and I need to admit that your content is top notch, I knew nothing about computers and networking and now I feel like it's all making sense! Also I work as a barista, now I try to change my career slowly, so seeing you drinking filter coffee on every episode makes me so happy! :D Thank You very much and greetings from Poland!
any update on your career switch?
@@FlyThanos still learning, doing courses, it is a lot to take, so I'm kind of taking my time, but I can tell there is a lot of progess
after watching video i realized that teaching is really a skill not anyone can have very good job you actually explained in 20 mins what my professor didn't in 2 hours ❤
I've been a Network Engineer for 4 years now and so far this course has been one of the easiest to follow and understand thoroughly. I watch a ton of training materials and would really like you to consider a CCNP-ENCOR series! Keep up the great work!!
I'm speechless with your teaching style. You really breakdown everything and I can easily digest it.
la forma de explicar que tiene y lo visual que lo hace todo es increíble, talento innato para la docencia
Your Lessons are simple , practical and effective . Data Center is complex - but through this channel, we are
learning in Simple way.
This course is great. I love how you break it all up. It's helping me refresh for a big job interview currently. If only it were all finished already! Keep up the good work Chuck.
I'm taking a CCNA class right now and have been watching these videos as supplemental content. I don't particularly care for networking (sorry), but you make learning about it a lot easier and much more enjoyable! Thanks, Chuck!
Thank you, Dave, for all the effort you've put into this series!!! This is an absolute 'no wasting time' video!!!
Recently became an IT sales manager. Chuck you’re helping me learn the language that the wizards keep talking to me about assuming that I’m not just a knuckle dragging ape that can convince people to buy things! 😂😂😂 thank you ❤
Great content, gonna watch the rest of the series, but I wanted to post here before I forget. Do you end up covering the WHY of some of it? like, "Why can't a router do it all?" or "Why bother with the "MAC address, why doesn't a switch just map IP addresses?" On the surface it seems like an unnecessary complication though I'm sure there are good reasons why.
13:40
He means Johnny for anyone that may have gotten confused for a sec.
Again thank you for your free lessons, highly appreciated.
Would love to learn more from you!!!
very easy to follow
Greetings from Somalia 🇸🇴👏❤️
Thank you for teaching us free CCNA lessons here on youtube
this is the education that we need in college,
Thank you man
Hey Chuck, Great content! I am going through a course to get my CCNA and I am supplementing it with your videos because they are so dynamic and well put. You are gifted to teach and its excited to see it. keep it up! Prayers for you and your family.
Thank you for this AWESOME Course, love u man!
Really helping me get to grips in my new job! Thank you!
Having some base level knowledge from highschool 9 years ago, this content is so easily digestible, thank you!
I love this, i can actually understand what you're saying .
As a coffee profession learning about Networking i must say am enjoying learning from you as well as hearing the coffee topic 🙌🏾
This is what I needed when I was reading and studying that way. This makes it so simplistic.
Explaining while showing the hardware and simulations helps so much with understanding. You make this stuff easy!
You make this very interesting to relearn networking! Where were you when I was taking Cisco courses :(
y do i go to college???????????????????????????????????
Same here bro
Depends on your education system.
Because thats what everyone else has told you worked before…
to get a degree which looks good on your resume
@@enderman_666 if it's not good then don't go (now the sentence completed)
This has been huge for me. I took a career break and realized I still wanted to be in the IT industry. Massive thank you, Chuck. You're going to be a major part of why I am getting certified.
Set this video to 2x speed if you are a mad man
1:56 Incredible how this guy make people understood the stuff rapidly!! I grab this concept so fast. Thank
Love From India ❤️
All Indians Like
//Here //
I am a programmer for 15 years. Finally I learn this things.
How long can we expect this whole course to take you to complete?
The new CCNA course is of average 120 hrs, 30 minutes video per week, 240 videos, 4 videos per month, 60 months=5 years
@@vishalnazare1607 5 years!!!! Thats insane!!! By then they will have a new version of the test out
If you know your computers already. You can easily cut the time down in half. I’ve heard some people went into the field with neither of these and made it through until you get to higher paying jobs.
@@fifteendollarbill who is limiting their study time to one 30 minute video per week...?
@@whitenite007 i was wondering the same thing ;)
Your enthusiasm is so contagious!
I work for a major telecommunications company.
Right now I am in construction. I put the telephone poles in the ground and physically run the fiber/copper.
I absolutely love the job, but I don’t want to be climbing poles in the winter when I’m older.
Your videos are easy to follow and I’ve learned so much already. I’m excited to learn more.
Just getting started on this journey , i really enjoyed the quiz on day 1 and was looking forward to one at the end of every session 😂
Your work is amazing !
I didn't know I didn't know and wanted to know! Amazing content!
Yesterday I was just an engineering thinking about hit network and a switch, now I'm an engineer going to impress our IT department and give them prop's for their work 👌👌
Phrase of the day "Holy Junk Sauce", thanks Chuck, haha.
I've spent about a week studying the OSI model and explanations about packet routing and layer 2 stuff, but none of it clicked until now. Thank you so much!
10:57 making a whole edit just to add that .1..appeciated
:), it was going to bother me.
@@NetworkChuck that's why you are the best...glad I found your channel in the lockdown
@@sariksiddiqui6059 me too, same feelings
I love the simplicity in the explanation. Once thing I will add is when the ARP request message is broadcast to all ffff....! and once the destination send the ARP reply back, the switch will not flood everything again because the switch remember on which interface the ARP request came from(the source).
Quick question : How does my router get Mac address of my cloudflare/Google DNS server 1.1.1.1 or 8.8.8.8 ? Is it sending ARP requests to all subsequent router's between my router and the one directly connected to the DNS server ?
Hi Nik. Good question, and to answer it, your router never learns the MAC address of your preferred DNS server(s), unless he is part of the 1.1.1.0/24 (1.1.1.0-1.1.1.255) or 8.8.8.0/24 (8.8.8.0-8.8.8.255) networks. MAC addresses are only learned within the same network.
Whenever a frame is sent to a host that’s not inside your network, that frame will always be forwarded to a gateway, and only the gateway’s MAC will be learned.
For e.g. let’s introduce another router into Chuck’s lab that Google’s DNS server (8.8.8.8) sits behind. You are in the 10.1.1.0/24 network along with your router, however, your router is also part of the 10.2.1.0/24 network shared with the second router, which is part of both the 10.2.1.0/24 and 8.8.8.0/24 networks.
Whenever you want to talk to 8.8.8.8, you’re going to forward that to your router, which first requires you to learn his MAC address. Once your frame reaches your router, because it’s also not part of the 8.8.8.0/24 network, it forwards it on to his gateway, which is 10.2.1.1, and he will have to learn its MAC address. Once he knows the second router’s MAC address, he forwards the frame onto it. Finally when it reaches the second router, who is part of the 8.8.8.0/24 network, the second router sends an ARP request to learn 8.8.8.8’s MAC address after which your request finally gets delivered to him.
As you can see, only the router that’s part of the DNS server’s network has to learn it’s MAC address, so your router will always just learn the MAC addresses of hosts that are part of the same networks it belongs to.
Hope this answered your question. :)
Check out 7:20
There's a lot more to it that he'll probably get into in later episodes but basically, first, your device makes a query for 1.1.1.1, and your router checks what subnet it belongs to, in this case we'll use 192.168.0.1/24 (which is 192.168.0.0-192.168.0.255, google CIDR notation or "subnet cheat sheet" if it's confusing) as an example. since 1.1.1.1 is not located between 192.168.0.0 and 192.168.0.255, it forwards the request to the gateway configured on the router. The router above yours is run by your ISP, and has an entire block of public IPs, (let's say 20.0.0.0/24) that it allocates from for your use, usually through DHCP (don't worry about DHCP now, basically it's a way of giving out ip addresses as demand calls for them) and it checks within that new public address IP block for whether 1.1.1.1 is there. Since 1.1.1.1 still isn't between 20.0.0.0 and 20.0.0.255, the router will forward the request to the gateway above it. At this point you are probably talking BGP, (which there are a lot of videos about and you can search for if you're interested), but basically the BGP router will check its routing table and check for which IP blocks in its routing table *does* contain 1.1.1.1, *or* which of its peers can get there. For sake of argument and simplicity we'll say that your ISP peers directly with Cloudflare/ARIN and that the router can find what it's looking for directly. Then, the process gets reversed. The BGP router run by Cloudflare (the one we're trying to find 1.1.1.1 on) will be advertising 1.1.1.0/24 and at this point the packet follows this route because 1.1.1.1 *is* between 1.1.1.0 and 1.1.1.255. Then it goes down a router and let's say the router says you can find 1.1.1.0/30 (1.1.1.0 to 1.1.1.3) below here. At some point on the other end you hit a point where there's never an advertised level that's lower than you currently are, and then it checks the routing table for the MAC address and subsequently the server you're looking for, then the response reverses the process back to you.
I was making some gross simplifications and assumptions here that I'm sure someone will comment on but basically it's like finding a specific chair in a specific room of a specific floor of a specific skyscraper at a specific building number of a specific street of a specific city in a specific country. Start at the little and work up till you hit as big as it gets, go across, then work back down in reverse till it hits the proper destination. chair-room-floor-building-block-city-country to country-city-block-building-floor-room-chair
Also if you were wondering how 192.168.0.1/24 was located inside 20.0.0.1/24 lookup "RFC 1918 reserved address space" and "Network Address Translation"
PS hopefully all of that makes sense
Edit: @Reginald Greyling has a much better and more succinct answer than I put, didn't see it till I refreshed the page
thank all of you guys. I had the same question as Nikunj and both answers were great. Didnt know about BGP.
Cloudfare is horribly privacy invading government tools. Google too.
@@wally19 You can also search the internet for "DHCP DORA" to understand DHCP.
This is absolutely the best content to learn networking. I have no intention of giving CCNA but I wanted to.learn about networks and Chuck has made it so.simple.and Intuitive. Bravo
What is a NETWORK ROUTER? FREE CCNA Course 200-301 - sponsored by the Boson Summer Sale 25% off: bit.ly/bosonexsimccna (affiliate)
Watch the whole course: bit.ly/nc-ccna
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Watch the whole course: bit.ly/nc-ccna
Install Packet Tracer: bit.ly/packtracer
CCNA Episode 2 Packet Tracer Lab: bit.ly/ccnaep2pt
0:00 ⏩ Intro
1:11 ⏩ remember switches?
1:57 ⏩ what is a ROUTER?
2:54 ⏩ do we actually NEED routers??
4:16 ⏩ what is ARP?
7:17 ⏩ Life without a ROUTER!!!
9:44 ⏩ routers SAVE THE DAY
14:20 ⏩ SNEAK PEAK.....DNS
18:44 ⏩ Your 1st Router command
So wheres my coffee haha
Jk
How many episodes are there going to be in this series?
Awesome video thanks again. Please keep them coming!
Don't start something you can't finish , be consistent
So I assume this course will be centered around the new CCNA? I just passed my Network+ and have been using the Testout version of CCNA. However even though I understand the concepts it never walks me how to practice taking a router from my classroom, resetting it, and actually getting it to route my vlans without connecting to an already existing LAN. I have a managed Cisco Catalyst switch at home running off a SOHO. I would like to take an old Cisco router and start running Windows Server at home to get experience for my first job. I graduate college next month at have a good number of CompTIA certifications. I have yet to take the new CCNA until I find a good study source that covers the NEW test (after feb 2020). I can get it working on packet tracer but I could not get it working in a sandbox in my class lab.
The clarity, the context and the level of engagement that you teach this is unmatched!! I couldn't even make it half way through other courses because I would be falling asleep!
I would give this 100 likes if I could!
This is the best tutorial of networking i have found so far..Got clear understanding with the practical. Thank you.
One of the biggest duh realization I had on this topic was that “no, devices are not really assigned IP addresses. Interface are assigned IP addresses.”
It helped a lot in my journey.
I am part of an online certification program that covers the CompTia A+ Hardware and Software, Network +, Security +, Cisco CCNA, Cisco Cyber Security, AWS Cloud, and MOS application in a 12 month time period. Thank you for giving us such a valuable gift. Without it I would be struggling big time. You present information in an informal and relatable way..so thanks again
You have a real talent of only telling people what is absolutely necessary and only revealing new information when they're ready to learn it; in a way that is easy to follow and understand!
i hated networking, this chuck right here made it simple and entertaining that im switching careers
I've just come across your channel and making my way thru the CCNA series. I've watched a few other CCNA videos and they were dry and difficult to follow, but not yours. The hands on visual way of explaining the principles has given me the enthusiasm to work towards my CCNA again.
this is way better than my university course. the way you explain and show things keeps me really intrigued and interested that I am enjoying the learning process. thank you
Dude you took something most people teach in a boring and mundane way and made it super fun. I have been coding for 3 years and am super interest in diving low level and networking knowledge has always been a barrier to entry for me. You are making this stuff fun to learn.
As a network technician, this is high quality content. God bless you!
I just can,t stop myself from watching this amazing content. i just want to say that plz don,t stop keep going .
and i promoise i would do CCNA certification through your videos.
you are an inspiration
I found your channel while searching for information to configure my own home network. Completely enthralled with networking and how it works now, and absolutely loving the "free ccna" course.
Big thanks from NZ for the quality content.
Absolutely INSANE what a difference a good teacher can make. Really appreciate your enthusiasm and energy, only other teacher I've ever come across on this level is David Malan from CS50 - you are in good company. Makes me excited to learn this. Thanks again!
Such a good way of explaining complicated stuff !! I literally went many through networking tuts like for ages and this is the first time I got a complete clarity on the topic!! I JUST LOVED YOUR CONTENT it's probably the best out there!
man you make this nice and simple. Ive recently got in to my first IT job, i started off with help desk , then i got moved to a mobile team due to my background, i started to learn and talk to some of the guys who are in networking and what they do is really interesting they mentioned if i wanted to work my way there i should get my CCNA cert, Your videos are some of the first i found and its super easy to follow along, i appreciate your content!
Just starting out in the 'IT world'.....9 months into my level 3 apprenticeship and these videos have helped me so much to understand and follow the basics. Thank you!
I had have a completely boring network course until I am here, all I could say is I love you!!!!!!!
Ok I just started learning about all of this couple weeks ago on Coursera and i really just want to say how much i appreciate these classes. I'm doing my courses on there so i can be accepted into this college but haven't learned anything. Just basic info to pass quizzes but that's it. Ur classes actually keep me engaged and wanting to learn more and with my ADHD that's very hard to come by so thank you so much. You have no idea how much that makes me happy
Just keep in mind his video series is not complete. There's still a ton of information he hasn't covered which is important to know if you're going for the CCNA. He's a good presenter, but he still needs a lot of work to get his series finished.
Thank you. That is all I have to say. You're spreading good, golden knowledge.
I just joined in and I am completely blown away. I've been around computers since the early 80s and simply used them; not realizing that I should have gotten more familiar with the inner workings. Thank you for this superlative content 🙏 👏
I appreciate you, I know its an old video but its getting me through my classes better than anything in our book
wish had a teacher like him before great job (Mr.N Chuck) this open the gate to many possibles knowledge is power salute you again Chuck
Hey Chuck, so I just wanted to say thank you for these videos. I love watching them even though I already know this stuff its just a great way that you teach it. I took Cisco Networking in my senior year of high school in BOCES/Vocational School. It is always great to get a refresher on what you learned that you might forget.
I'm starting these videos without anything but basic gamer knowledge, I've always wondered how those messages work. I mean at first it was a simple question, now I just want to know more. It does look insane omg, I love it
I did an HND and a degree in IT (that's 5 years of learning this stuff) and I have to say that this is the first time i have ever actually fully understood what the teacher was saying. Thank you so much, i'm starting to believe that i might actually be able to pass my CCNA exam thanks to you
Thanks for all your help, brother! I have my BS in CyberSecurity and I am going back to Georgia Tech for my Masters. In between, I will get some of the certifications. I am a deputy at a jail in Florida, a liaison between security and IT. I have almost 16 yeqrs years in and a little over 8 years left until retirement, at which point I want to really hit hard with in this field and start a new. I have 3 children, and 2 are autistic. My son is further down on the spectrum, so when I retire, I want to set myself up for something remote. Thanks again. You have helped me garner and understand the information where I am actually gaining some confidence.
Dude! My 9 years old understands your explanation. Simply amazing!
Chuck you kill me, I listen to this lesson 3 times and watch on 4th and realizing who Mark and Lisa are in this video is beyond hilarious.
worked in the industry for 15 years, never seen anything as good as this :)
I'm amazed at the content you've created here. I started my degree in Cyber Security and one of the required courses is CCNAv7 via Cisco Netacad. Since it's a distance learning university, there aren't a lot of face-to-face explanations of the content. These videos have made the information easier to digest and have reaffirmed my love for IT. Thanks again!
This just gives me so many reasons of inspirations to do the same for this community of innovating curious peacocks just newly entering the field.
I'd love to sometime start and educate people for free, support and give back to the field, what it gave to me... Internet is definitely a miraculous invention, and I can't thank the previous lords of networks and computers to bring about such an event
I'm studying Sys Admin and Networking and last year I had to drop Networking because I didn´t get the basics. Thanks to your videos I can learn the basics and follow the subject this year.