How Network Address Translation Works

Explanation of what Network Address Translation is, how it works and why we need it to keep the internet growing. IP version 4 and 6 are also discussed.

[@varunsaproo4120]

8 years later, this video is still perfect

[@lukasaudir8]

Man that's sad that this guy stopped working on this channel all his videos are great and super simple to understand, he has a gift 👍 Thank you Pieter!

[@kennethhowell5291]

Thank you! After 10 years of trying to understand nat, you have explained it clearly in 2 seconds. Thank you!

[@CSEPracticals]

but where does that port no came from ?

[@hieunt0204]

It's provided randomly by your router and pc

[@TheIminator25]

10 min*

[@FingerThatO]

@@hieunt0204 do the ports change or are they static per device?

[@nikhilpatil5615]

No some ports are reserved for particular use but u can specify particular port for your use

[@bsummer]

I came back here because of aws natgateway . Your vid always clears doubts. Thanks for this.. Appreciate

[@AP-eh6gr]

at 1.25x, your video is perfect

[@PristinePerceptions]

+ashish paralkar I agree! It's almost feels like he recorded at 1.25x and then slowed it down :D

[@boydseabiscuit2635]

rap!

[@zebbleganubi723]

0.5 is funnier. it sounds like he has brain damage

[@Niko-zl5hn]

ashish paralkar lmao

[@itsmemarva1763]

I watched it at 2x...

[@michaelstyler1606]

Pieter, you have a gift for teaching. Please consider making more videos. I've been learning CompTIA Network+ Objectives for the exam and am brand new to networking, and your teaching style and presentation is perfect. The visuals are super high quality and helpful. Thanks for doing what you do. Your materials are some of the best on the internet.... but you need more videos! Lol

[@bammoore8593]

Finally someone knows how to keep it simple!

[@hiteshgarg649]

Hi ! your videos are awesome. but why are you not making more videos related to computer networking? please upload more videos. these videos are very interesting.

[@tusharjajodia9077]

Hitesh Garg good though

[@user-on5gk5wr5x]

So clearly! As said Einstein: “If you can't explain it to a six year old, you don't understand it yourself.” Thank you!

[@luisalduucin]

Amazing ... you only can explain something when you understand it. This video proves that you understand it very well . Thanks

[@Benjamin-bf8fo]

Your videos are life savers! I'm in the middle of studying for my exam on networking and the officiall university slides use so much technobabble that it's hard to grasp the underlying concepts. Also these videos are exceptionally well structured and your voice is very clear. Thanks a lot for doing this!

[@kidtury]

Really straightforward and easy to understand. One of the best tech explanation videos out there. We need more.

[@DiaborMagics]

This video is pure GOLD! Thank you so much! You explained this about 4.2 billion times more clearly than my professor!

[@4949smiley]

I came through NAT but I never was able to understand the clear picture of WHAT and HOW it works. You explained bit by bit. Simple and easy. Thanks :)

[@rafikhandoker9802]

even in 2019 this is helpful

[@jasonscalzo9597]

I've been having trouble understanding NAT and your video is what did it for me, thanks a lot! I had trouble realizing that private IP addresses can be reused on different networks, something I kind of already knew, and understanding how the router knows which device to send the packets to. You explained it wonderfully

[@alecdoazan2771]

This is the best video series on the web for understanding internet networking. I personally suck at it, and now I feel like I could explain all of it to other! Brilliant!

[@sayandiproychowdhury7767]

i havent seen any better explanation before...pls pls pls make more videos on networking... network is fun

[@Exodiq]

watched like 50 videos that explain the internet and that was the only one that really helped . Thanks alot!

[@irfan_antennas]

Your video did my assignment of Avionics Engineering in 2020 . Thanks keep rising and shining.

[@nightwingx6]

You make fantastic videos that are clear, make sense visually, and hold true to the theory. THANK YOU!!!

[@ananyalittlesharma5426]

4 i 2 to

[@prafullavishwakarma2256]

What would I do without you Pieter. So amazingly explained , I was gonna leave this topic for my exam . Thanks to you :)

[@jtigsi]

Thank you so much. NAT was confusing at first and explained it in simple terms in this video. Helped a lot for writing about NAT and how it is used.

[@seetsamolapo5600]

Please make more videos. This was hands down the best explanation for NAT Don't mind me just making myself some notes here: -There are more people available who even use more devices than there are IPv4 addresses -Local machines in a local network are all connected to a router, which is in turn connected to the internet - external public networks - To reach a public server, the packet from a local private IP has to go through the home/local router. Then through the internet - multiple routes. Then finally the webserver. - The home router changes the packet private IP source address into its own public IP address - The home router also creates a NAT forwarding table which helps with return packets to know which packets go to which host in the local network by mapping host's private addresses to reserved public addresses in it - The web server creates a response packet with it's destination as a the home router which is a public IP - At the home router the packet's destination IP address is changed to the corresponding/matching local private IP address on the NAT forwarding table. Then the packet will be forwarded to the local host

[@nblandfriends]

Great video! Stumbled across this while I was researching CIDR block addressing.

[@mrkaa001]

Thank you very much!! I wonder why some lecturers cant explain as clearly as you.

[@LynFantast]

I was disappointed to click on your channel and see that you had no more videos. This one was of great help, I hope you make more!

[@maryjohn3397]

I have taken a full course in networking in India and haven't get to know how NAT works.But this video helped me to understand this concept.Great video.Keep this up Pieter.

[@reactorscience]

only 6 video on the channel and 54k subscribers, that kind of tells you the quality of the content. It is super amazing.

[@elegantuser1090]

It's to the point that i was looking for. Literally, I was hungry, you helped me to grab more than what I consume usually, lol. Thank you.

[@raymartin1687]

NAT address translation very well explained! Thank you. I went to several other sites but none handled it as well. The animation was key as was the illustration of the IP addresses and the specific port numbers

[@vivekshivhare8820]

I just love the way you teach, clear and crisp, thank you so much.

[@babisuper85]

Pieter, thank you.This helps me a lot. I'm entering new position and required me know the high level of IP Network. Your video is just amazingly easy to understand. Keep posting please.

[@aler13CR]

This is a great video explanation about NAT!

[@arontigerful]

You make NAT so simple to understand, thank you! I was always have a question inside my head what is the function of NAT, after I see this video it become so clear to me what is the importance of NAT. I expect more video about networking from you

[@leojacquemin2037]

Seen half a vid only and already subscribed. Speaks for itself.

[@emonmahbub969]

it is October of 2020, after 8 years of uploading this video I have to say it was a great job

[@Spaniards56]

Thanks a lot for your explanation! Please do not stop sharing your knowledge. This is needed by people who, like me, are trying to learn these concepts.

[@priyankananwani8595]

Your illustrations are excellent. :) Please create more such videos especially around networking, how internet works, the different types of protocols - their history, advantages and disadvantages, and so on, thanks.

[@SaadJameelAlrawi]

Man, the way you speak is amazing. Thank you very much.

[@exotool]

This video is just missing "Hi, everybody!".

[@PieterExplainsTech]

Just wait until you hear me imitate Dr. Nick on purpose.

[@kk-transport]

+exotool yeah

[@nealdavidson3715]

Man I been looking for a clear cut explanation. Thank you !

[@1sames]

Fantastic! Thank you for explaining that so clearly.

[@kalleidoskop2]

Brilliant! I was sincerely wondering how these things work a while back when I set up a server. Now I know, thanks!

[@RaghunandanChakravarthy]

The concepts have been articulated very eloquently. Please make more videos like this and share your knowledge with us.

[@jishadpeevees9510]

I was looking for such a simple video to understand NAT and its use.

[@LakshmipathiG]

Honestly, this channel deserve at-least half-a million (not 40k) subscribers. Thank you for your time and effort.

[@Gooseycoyne]

Absolutely brilliant video. So easy to understand. Made me understand NAT very clearly. Thank you

[@PieterExplainsTech]

Thanks! As far as the subtitles are concerned, they're generated automatically by KZbin and their accuracy varies.

[@logancarvalho]

I am so impressed about the quality of your videos that I want to cry. Congratulations, this work is wonderful, your explanation is excellent and your english is perfect.

[@motoojatt4153]

Explains perfectly the purpose having a NAT table! Thanks.

[@EddieSundvall]

Exactly the explanation I was looking for, been wondering about this subject for some time. Very pedagogic script and images/animations. You deserve a subscription!

[@johnconnor9787]

This video is the best. Guys, you make the content of a very high quality. Your way of explanation is brilliant. But it seems like you stopped making videos and that is a sad story. Thank you! Please continue making your videos, we need this)))

[@muccapazza8869]

This is the best explanation for this topic on the internet. thanks for sharing much appreciated :)

[@boogabooga223]

one of the best videos ive seen on youtube. so well explained.

[@dimasdark]

Omg the best teaching lessons I've ever got! You explain the concepts like magic, and I've already have classes with 3 network professors, and they were not as clear as you. I hope you make more videos =(

[@ana-mariacotilici4158]

Your channel is amazing, you make these things very easy to understand, thank you!

[@SamoZain]

you are amazing. I've never understood how it's worked until I saw that video. thanks man

[@oweibor]

best NAT Network and IPv4/v6 Explanation ever! Love you man!

[@ajaytamang5957]

Pieter you are just awesome...Thanks for this video and your simplest explanation of such a complex tropics

[@mohamad.baalbaki]

Man you just made me understand what the hell is the difference between public and private ips, thanks!

[@vikasp5161]

your videos are great ! simple and just the perfect amount of info required

[@samantkumar7200]

thanks a lot sir , i have my computer network exams tomorrow and i gained a lot of knowledge by watching few videos , keep up the good work ...

[@alihassan2203]

how much marks you got?

[@artistinept464]

Your videos are awesome! thank you for breaking it down in a simple way

[@adrielomalley]

Watched a BBC documentary "The Joy of Data" from 2016. It explained things amazingly.

[@NicoleMurray01]

Thank you Pieter. This was a very simple and clear explanations. I will be checking out more of your stuff. I hope to find more networking videos.

[@shyamsundersamudrala5314]

Wonderful explanation! Simple and crisp.

[@johnconnor9787]

The one who explains this material, the one who created this video presentation is a genious))) I watched tones of videos, read a lot of materials related to this topic, but nobody could explain it so clearly. You have a talent)) Please, start making new videos again. See, you have just 5 or 6 videos, but you have 54K subscribers. I believe that you are able to reach million in a short period. Thank you very much. You are the best

[@rajeshs7477]

Really a very good explanation. Even a beginner can easily understand it. Thank you Pieter.

[@realtebo]

Absolutely best video on NAT for entry-level as me

[@Jasmohan]

Thank you for this tutorial. It was clear and easy to understand. Good work!

[@sagarraut9455]

Video has cleared the concept of NAT. i have seen your other videos too... it's really simple to understand

[@mohammadhaque6404]

Awesome: Hope you are doing great!! Come back man. We guys are waiting for you. You have the capability to make the things very easy.

[@EscapeePrisoner]

Oh, praise be to Pieter. Thank you so much for explaining that in such a nice way. I'm sure there's more complexity to it but at least I can understand it at a fundamental level now. Subscribed.

[@ppvshenoy]

Very nicely and clearly explained, this simple yet important concept. Much appreciated.

[@piarahman2929]

It is really helpful. Simple, precise but enough. Thanks.

[@herozero2007]

Excellent way of describing the concepts using diagrams/illustrations/animation. Great job done PieterExplainsTech. And also explained slowly. Thanks for providing this informative video :)

[@grishamcrime]

Great presentation and analogy. Straight to the point and well explained. I like it.

[@osho2810]

Mind blowing explanation ....thanks from heart ..

[@djpunisha29]

flawless explanation, thank you Pieter!

[@AbhishekNigam]

Great explanation!! Would love to see this channel posting more videos!!

[@daveys]

Really good video Peter, very clear explaination and the backstory was really useful to put it all into context. Many thanks!!

[@dvishwanath6996]

Thank you so much. This video is better way to understand concept of NAT.

[@password7157]

Well, this video dumbs the complexity of the basic functions of personal/public ip addresses down enough that along with the simple animations it can be understood by anyone who has any idea what an ip address is. Thank you for the videos, haters are going to hate no matter what, so keep up the good work

[@aosis]

In love with your video. Gr8 job! Simple and sober.

[@leepettit9516]

Thanks a lot !!!!im not very computer savy & have read some articles but still didn't get. You explained it so simply and consicely I got first time thanks heaps for clearing it up simply :)

[@TheSmootherCriminal]

This video is so clear and understandable! I couldn't have asked for more. I hope you continue to make more videos

[@ryan_ruby]

awesome! this video helps me understand NAT in ten mins, thanks!

[@debanandasagarsahu7647]

Hey I am a CCNA certified. I just felt like checking out some videos. And yes I found the best.

[@swarupbanerjee4338]

Thank you for this!! Very nicely explained

[@SwathiMenta]

Whoa! Your videos are simply outstanding! The best of the lot for understanding networks! Would love to watch some videos of this kind on the two networking models (OSI and TCP/IP). Great job! Thanks!:)

[@bladegunrawat]

Explained Beautifully .....appreciate your efforts..Thank You

[@miloblue6740]

One of the best explained videos i have ever seen.....thumbs up!

[@zhrgould123]

Very good explanation! Very easy to understand! Thank you !

[@TabInvader]

Fantastic video! Thank you for the simple explanation!

[@ToanTran-ev8im]

Very helpful, details and comprehensive explaination, thanks alot.

[@sankaeureka4989]

Thank you so much for this lesson.............i have learned lot about NAT

[@utkarshlivee]

Amazingly explained its just clear each everything just keep up the good work

[@AllThingsLit]

You are good brother!! I feel like a genius after watching this video. Thank you sooo much.

[@Buet-yb6ht]

THANK YOU FOR THIS! explanation was easy to understand, keep up the good work!