IPv4 Addressing Lesson 2: Network IDs and Subnet Masks

IPv4 Addressing Lesson 2: Network IDs and Subnet Masks

Subnetting made easy | Understanding Network IDs
In this lesson on IP addressing you will learn all about Network IDs, Subnet Masks, and CIDR notation. This lesson is the second of a series of three total lessons on IP addressing which break down the IPv4 address, network IDs, subnet masks, and the IPv4 class system.

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Lesson 1: https://www.youtube.com/watch?v=ddM9AcreVqY
Lesson 2: https://www.youtube.com/watch?v=XQ3T14SIlV4
Lesson 3: https://www.youtube.com/watch?v=4xlzlgYGqW8IT

50 Comments

  1. Eren YESILTAS on November 19, 2021 at 11:21 am

    thank you for the best explanation…. finally..

  2. Chris Cas on November 19, 2021 at 11:22 am

    what is the point of all manual calculation if there are ip subnet calculators everywhere as well as subnet reference tables

  3. J M on November 19, 2021 at 11:23 am

    So I like the video but what seems to be missing is the correlation to a realworld network to see what all u said can mean in terms of a network/subnet structure

  4. Nathan Alemayehu on November 19, 2021 at 11:24 am

    tanks sir!

  5. Shari W on November 19, 2021 at 11:26 am

    I love you!!!!

  6. Bobbygf62 on November 19, 2021 at 11:26 am

    man this video helped me so much. seriously thank you guys!

  7. Amir Al-Gibury on November 19, 2021 at 11:28 am

    gg wp

  8. Moshe Azoulay on November 19, 2021 at 11:29 am

    Awesome video

  9. Ithu Chakma on November 19, 2021 at 11:31 am

    Thank you finally understood damn 😊 subnetting

  10. Zahra Khilwatgar on November 19, 2021 at 11:33 am

    i fell in love with your teaching method, wonderful you deserve a clap!!!!!!

  11. Juan Petter on November 19, 2021 at 11:33 am

    Can NextGen help me get a job if I am not a US resident or have a valid working visa?

  12. Samuel on November 19, 2021 at 11:33 am

    shout out to this guy omg

  13. ModdedHands on November 19, 2021 at 11:36 am

    The fact that I have to come to YouTube to get a better education than what I’m getting in a Univeristy is crazy. I got so confused in my lectures that I had to come here to actually figure out what to do. Big thanks man!

  14. King Hutt on November 19, 2021 at 11:36 am

    I literally learned this so fast because of your video 😂

  15. Jackson Campbell on November 19, 2021 at 11:36 am

    This threw me for a loop when he used a class B subnet mask (customizing the 3rd byte to make it under 255.255.255.0) for a class C IP address at 5:26. The network portion of the subnet mask never changes; hence why we have classes. The classes define which part of the IP address are the network portion as opposed to which bytes can be allocated to the subnet and hosts. The lowest CIDR for a class C IP address is /24, so having a /21 on a class C IP address is not plausible and would be an error. Slight overlook but sort of worked to teach the concept.

  16. Chris on November 19, 2021 at 11:36 am

    Ok guys

  17. SH LB on November 19, 2021 at 11:40 am

    wonderful explanation, thanks a lot.

  18. Sam B on November 19, 2021 at 11:42 am

    Wonderful video, thank you so much.

  19. Trevor Thornton on November 19, 2021 at 11:44 am

    THIS! This made it all make sense to me. This video taught me things that the CompTIA Certmaster Learning Plan didn’t tell me. I was confused so I came to this video and it showed me the way! Thank you

  20. Revi on November 19, 2021 at 11:45 am

    AMAZING, thank you !

  21. Farzi guy on November 19, 2021 at 11:46 am

    Just one word…… Fantabulous

  22. ALECIA K ADJEI on November 19, 2021 at 11:47 am

    Is there a way I can find the subnet mask without using the CIDR method?

  23. marshall Audet on November 19, 2021 at 11:48 am

    thank u that was super helpful

  24. Pantelis Vasileiadis on November 19, 2021 at 11:48 am

    THANK YOU! you really saved me one day before the exams haha

  25. Marvin Naidoo on November 19, 2021 at 11:48 am

    I could not get my head around this until now! Thank you for making it so simple!

  26. JEFFHERNANDEZ87 on November 19, 2021 at 11:49 am

    Very helpful! Thank You

  27. Relax and Explore on November 19, 2021 at 11:51 am

    Added this to Plex.

  28. Johnny Lor on November 19, 2021 at 11:55 am

    To find usable host. 255-192= 63, 63-1, since first address is use for broadcasting. So, you have 62 usable hosts

  29. leo black on November 19, 2021 at 11:55 am

    Channels like this are my real teacher

  30. Mack Guillermo Felipe herrera on November 19, 2021 at 11:56 am

    Traductor a español
    Pliss

  31. EFE SHENEM on November 19, 2021 at 11:57 am

    Thank you so much. you solved one of my biggest problems 🙂 with this video. you explained so good.

  32. haftu kahsay on November 19, 2021 at 12:00 pm

    It is Good leactures thank you again and again

  33. Jazzadrin on November 19, 2021 at 12:00 pm

    This video was really good. I have watched many videos on subnetting, and neither those videos or my lectures in college have made it understandable for me. But with these videos it has become a lot clearer. Thank you!

  34. Night Rain on November 19, 2021 at 12:00 pm

    This helped a lot thanks 🙂

  35. Shock Awe on November 19, 2021 at 12:01 pm

    Explained like a Pro.

  36. Nafsialogy on November 19, 2021 at 12:02 pm

    thank you very much

  37. Suleiman Boutzamat on November 19, 2021 at 12:02 pm

    I never understood subnetting until this. And I’ve seen alot of videos 😅

  38. Fynn Cat on November 19, 2021 at 12:07 pm

    How do we work out the mask just using the IP address?

  39. qu1te contrary on November 19, 2021 at 12:10 pm

    Thank you Love you:)

  40. Grzegorz Majewski on November 19, 2021 at 12:11 pm

    Właśnie ta konfiguracja działa mi tylko na ustawieniach sieciowych Windows 10 Phone i Windows 10 a na Windows 11 Cumulative 🆕 nie chce mi działać i nie pozwala na aktualizowanie Windows 11 Cumulative 🆕.

  41. shitzuation on November 19, 2021 at 12:12 pm

    Omggg I FINALLLY GET IT!! LOL thank you SO MUCH dude I’ve really been struggling with this whole concept in class ❤️👏😆

  42. Joe Ram on November 19, 2021 at 12:12 pm

    starting off hard was a good idea?

  43. Omar Cham on November 19, 2021 at 12:12 pm

    you literally make me want to learn. Thanks man

  44. xydo on November 19, 2021 at 12:14 pm

    Excellent presentation, clear and to the point. Many thanks!

  45. Trenetta McDonald on November 19, 2021 at 12:14 pm

    THANK YOU! This is one of the best videos explaining subnetting for newbies like me. lol!

  46. Shane Todd on November 19, 2021 at 12:17 pm

    Thank you! Thank you! Thank you!

  47. Brandon Todd on November 19, 2021 at 12:17 pm

    FUCK THIS BULLSHIT!

  48. Chelsea Fletcher on November 19, 2021 at 12:18 pm

    Great video very easy to understand I got it on the first example

  49. Kashif Hussain on November 19, 2021 at 12:18 pm

    Great video helped a lot

  50. Joao Carlos on November 19, 2021 at 12:19 pm

    Amazing thx

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