NAT - SNAT, DNAT, PAT & Port Forwarding
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- čas přidán 2. 06. 2024
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In this video, I will talk about how classic private TCP/IP network was set up for the first two decades of the Internet. Why it did not work? What is network address translation, or NAT? Why do we need it?
For most parts, I will talk about four different types of NAT: Static NAT, Dynamic NAT, PAT, and Port Forwarding. I will discuss each in detail.
Playlist link: IPv4 Basics: • Tricks to five classes...
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Sunny Classroom
Everything at high level in just 9 minutes yet more than enough clarity and slowness to understand. Everything on point. This is awesome! Thank you Sunny.
He is a great teacher.
He’s a great teacher, I’m learning so much with him!
Slow network? To understand it?
wow man i watched 2 other videos had few open questions, watched your 9 minute video and everything is clear now. You are talented teacher
@Sam Darwin this is a spam
I love how Sunny explains the brief history behind technology in his videos, since at times it is a crucial part in the learning process to understand how the technology came to be and why we need it.
Simplicity! I love how you slowly and patiently explain complex subjects. Thank you🙏
Thank you sunny, i have been in the field for over 18 years, no one made the concepts so clear for me, You're the best! I like your chenglish toooooo.
Excellent presentation. It is very difficult to find a similar presentation which explained the differences between the 4 concepts as clearly and as easily.
Sunny man you always come up when I want to learn something new about networking. Easy, clear but high quality!
EXCELLENT VIDEO!! This was the explanation that I was missing 🙌🙌🙌
Currently learning network services and DNS. So glad to have found your channel. You provide such clear and logical explanations with helpful animations. Thank you for sharing! Subscribed!
the music at the end is epic ! it gives me recall of life in year 1980s and that time TV shows have this type of music. any way the content is best and crystal clear. good work.
Thanks a lot for your nice comment! I appreciate your encouragement.
Simply brilliant explanation! Your channel is a boon for anyone looking for good CS fundamentals. Keep it up and hope you can publish topics on Core OS concepts as well?
This was a simplest understanding of NAT and type. Examples are very simple and user friendly at each type of NAT describe by Sunny.
Thank you so much Sunny, I always come back to your lessons. It's my favorite reference.
Awesome, Sunny is my to go resource whenever I need to refresh concepts in networking, security and basically IT! Thanks again Sunny for the topnotch content :)
Credits to you fir explaining it in such a clear and easy understanding way, thanks!
You are quite welcome, Steve.
Thank you sunny , i have gone through all your videos they are well explanatory . you are the Teacher of the century
Thank you Sunny! For putting a number of topics into perspective.
Thank you Sunny, I have been watching many CZcams videos but they do not explained this in such a logical and simple way.
A really good explanation, well paced and clear. Thank you
WE LOVE YOU SUNN!!!! THANKS FOR THIS... AND PLENTY OTHER VIDEOS. I REALLY VALUE THE THINGS YOUVE TAUGHT ME
Thank you Sunny! clear explanation! To the point! no time wasting.
That moment when you search on youtube and cross your fingers a video with Sunny shows up in the results feed- BINGO! oh Thank Jesus....press PLAY! 😂
This is awesome! Thanks for the precision and detail, Sunny.
Quick, concise and very clear. Thanks!
Thanks Sunny.. you explain stuffs so well. Wish I found these lectures during my engineering..😃
You are welcome and thank you for your nice comment.
Simple and easy to understand... thank you
Thank you sir, the pace and simplicity with which you explain concepts is commendable, when In doubt or want to learn about a subject, I search with Sunny Classroom #####, #### stands for whatever network related concept I am looking for, simple and Brilliant
Awesome! Each concept clearly explained in a structured way with clearly illustrated charts. What more can one ask for? Great job!
Great to hear!
Wonderful explanation and illustration. Thanks so much!
Thanks for explaining the differences in the different types of NAT... i was a bit curious how the external unit would know where my request came from, but i think it is by using the PAT by default.
it's quite interesting how something really helpful and seemingly innoccous has prevented transition to IPV6.
Thank you for the clear and concise explanation as usual. Your videos taught me a lot!
I never write comments, but here it goes:
Networking topics will be part of my final exam in two weeks and honestly your videos have been such a life saver.
I hope you know you're changing lives with your content! Thank you Sir!
Great to hear!
Great video. It is very clear and detailed. Much easier to understand. Thank you Sunny.
You are welcome!
Excellent . No Other video can be better than to explain NAT-PAT
I loved this video. Very high quality explanation.
Thanks a lot or your nice comment.
Wonderful explaining my teacher. Thank you so much
Thank you Sunny, your videos helped me passed a lot of exams
Very Nice Explanation. Watched Many. only now all confusions are cleared
Very clear and concise explanation. Thank you Sir!
You are welcome!
Best explantion ever. Sunny is better than Google's IT course in exaplaining NAT, no doubt.
Great explanation. Thanks a lot!
Awesome explanation Sunny, Subscribed!
thank you very much for the videos, so clear, so easy to understand. Hats off 🤩
Very useful video, easy to understand and remember. Great job! Many thanks!
You are welcome!
Very informative, many thanks.
Excellent video. Extremelyt Informative. Subscribed!
Awesome Video Sunny , Well Explained !!!
At last I understood. Thank you sunny!
Hi Sunny Love ur teaching videoes. Thanks for sharing
you are welcome!
Very good Sunny! Thanks for making this video
Excellent content as always. Thanks Sunny!
Very good presentation! Thanks.
I can't say enough good things about Sunny Classroom.
Give this man the nobel peace prize for teaching !
Again, the best explained video I've seen on this. Your videos are excellent. I needed a refresh. I do have a couple of clarifying questions about this. 1) Dynamic NAT - what happens if all the public IP addresses are used up? Are internal hosts denied access to the internet then? 2) PAT - If an internal host sends an outgoing packet on port 80, but the gateway then translates that to port 8001, how does the web server on the internet know you are trying to communicate with it on port 80? Thanks, Sunny.
Here is what I think: 1) Yes, they must be denied access until an available public IP comes out; and if not using PAT. 2) The port 80 of the internal host is NATed. The web server doesn't care about that port but the one that comes by 8001 where it will reply the request. The router-gateway receives by 8001 and translates to 80 to the internal host. The web server will never know you tried by the port 80, and doesn't matter.
Excellent explanation. Thank you.
Thanks Mr. for your great videos.
Thank you! Very good explanation.
Your videos are amazing, thank you
You deserve more subscribers, this is awesome
you are wonderful teacher.
Great video! Thank you... Though I believe 7:25 should be "is 16-bit value", not "16 digit value" ?
Sunny, simple and excelent explication. Thanks
You are welcome!
Thats a Beautiful Explanation with some Graphics to explain
Glad it was helpful!
@@sunnyclassroom24 can you explain dmvpn the same way along with configuration? Is there a video tutorial already for dmvpn?
very great explainations about this 🤗🤗🤗
Short and sharp. I learnt alot within a short time.
A question here please.
If I'm using DNAT to connect, should I forget about PNAT? Or can I use them both simultaneously?
Hi Sunny, thanks for the video. On the PAT explanation, why a common PORT of 80 was chosen instead of a random port number also known as ephemeral port? thank you
Love youre videos. Thx for sharing
How amazing this explanation was!! 😀
Glad it was helpful!
Very clear, better than my expensive cissp textbook!
Thank you for watching!
Best on the web explanation. thanks bud
Great explanation!
Thanks for the explanation! your Videos are great!
You are welcome! Thank you for your time! Check out my other videos please!
Awesome explanations!!!!!!
A little confused here
Read a book where SNAT means Source Network Address Translation and DNAT means Destination Network Address Translation. The explanation you gave for PAT is what was given for DNAT.
What you read was correct. I am on the same page with you.
this is great effort .. keep up the great work.
Than you for your nice comments!
Great content. Thank you.
Love you sunny. such helpful vidz
Thank you for this interesting video. It enhances my understanding of NAT. I realized that this video was made quite some time and CGNAT is not yet widely used back then. With the advent of the use of CGNAT by most ISP, it basically deactivates the use of port forwarding in a private network. Do you have a way around this? I would love to see another video on this topic. Thank you!
all your videos are excellent
It is very nice of you to say that.
Nice explanation
Well explained!
Very clear video!
Great Video sir thanks
thank you Sunny. Very good video.
Thank you very much, Nicolae.
Awesome!!
You are so amazing tutor
Thanks a lot!
Very well explaination, thanks
You re welcome !
Very clear, many thanks~~
Really great video!
Mavaaa nuvu super
Very good Sunny
thank you for your help!!!!
thanks a lot brother sunny.
Very clear, thank you
Thanks a lot.
Thank you Sunny!
Really good video. If I understand well, what at my home I am doing in my router is only a simple port forwarding.
SNAT and DNAT are used at ISP level?
Or every home router is using ? and if yes,. .. can yuo explain me how?
Thank you very much. Great explanation. Cold you please help us with QOS concept
I will upload QOS, hopefully soon.
Great video! Thanks!
Thanks you for watching!
شكرا يا هندسة :)