Destroy a network with one command! (FREE CCNA 200-301 Course 2025)

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  • Опубліковано 3 лют 2025

КОМЕНТАРІ • 61

  • @DavidBombalTech
    @DavidBombalTech  4 місяці тому +4

    Be very careful doing this in a switched network! It could potentially melt your network! But, how do you protect against this?
    // CCNA Complete Practical Course: //
    Expect regular updates - the full CCNA course will be uploaded on my new CCNA playlist here: ua-cam.com/play/PLw6kwOJVj3MbMZ8B72ZgUryj8OSETC0ds.html
    // David's SOCIAL //
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    // MY STUFF //
    www.amazon.com/shop/davidbombal
    // SPONSORS //
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    // MENU //
    0:00 - Introduction
    00:50 - BPDU Filtering
    04:44 - Loop Guard
    06:18 - Explaining Unidirectional Links
    06:56 - Network Topology Breakdown
    09:18 - Discussing Loop Guard Theory
    10:08 - Loop Guard Practical Demo
    12:41 - Breaking the Network
    14:03 - Sending a Broadcast into the Network
    17:22 - Fixing the Problem with Loop Guard
    21:01 - Receiving BPDUs
    21:32 - Conclusion
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    Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!
    Disclaimer: This video is for educational purposes only.
    #ccna #cisco #free

    • @GamingFruguy
      @GamingFruguy 4 місяці тому

      Add the videos to the new version playlist

    • @AmozishakWiFi
      @AmozishakWiFi 4 місяці тому

      Please teach all Kali Linux programs

  • @TheDrewCrawford
    @TheDrewCrawford 4 місяці тому +4

    This is so helpful. You have really hit on something beneficial here by using real hardware and focused topics such as this. Excellent work on the video, and thank you very much for sharing your knowledge.

  • @tijlsiongers1841
    @tijlsiongers1841 Місяць тому

    Thank you, for the time and effort you put in this video. To compare simulation with a real world environement makes it so much easier to understand, and it was really fun to see the broadcaststorm happening before our eyes, it was impressive.

  • @majiddehbi9186
    @majiddehbi9186 4 місяці тому +3

    it's always pleasure to take networking lessons with david it remind me my first step as student and I hope to all of you much success

  • @mihretabneway6811
    @mihretabneway6811 27 днів тому

    Great demo for BPDU filtering and loop guard. It help me visualize real-time and appreciate your effort!

  • @yurisebastiao1872
    @yurisebastiao1872 4 місяці тому +1

    ❤🎉 Thanks a lot, David! It's very considerate of you having some time set aside to help us improve our net skills. 😊

  • @mabdulmalikRiyadh
    @mabdulmalikRiyadh 4 місяці тому +5

    Sir, I enjoyed your videos and this is tremendous work.
    Needs little improvement:
    1 - please give appropriate title to the video so we can understand the topic.
    2 - please give a “number” to the video title, it will help us to keep up with the course without missing a video. If we missed any video, so we can track the missed one by its number.
    Thanks

  • @Oomtet
    @Oomtet 2 місяці тому

    thank you this is one of the best illustration of you everything works a real network....

  • @AyoubLaaziz-e5o
    @AyoubLaaziz-e5o 4 місяці тому +13

    You do a great job but If you can make videos every week it will be good i appreciate what you do for us 😊

    • @DavidBombalTech
      @DavidBombalTech  4 місяці тому +9

      We've had some technical issues... but hopefully a lot more content coming soon 😀

    • @lateefyakub1895
      @lateefyakub1895 4 місяці тому

      Thank you, really expecting more content.

  • @Net-Guru
    @Net-Guru 4 місяці тому +1

    Always to the point and clear 💯

  • @tonygibbs9339
    @tonygibbs9339 4 місяці тому

    Thank you David for showing how a broadcast storm can really paralyse a switched Ethernet. I have seen it happen as you demonstrated and it does not take long.
    Good demonstration!

  • @micah6465
    @micah6465 4 місяці тому

    Heck yeah! This is the kind of training I’ve been looking for!! 🎉

  • @floridastefy2432
    @floridastefy2432 4 місяці тому

    Hey they Sir Dav I'm delighted to be here yet agian for another amazing journey with you

  • @knight2000-NC
    @knight2000-NC 4 місяці тому +1

    lol we did this in my CLSC class back in 2000 when they shipped cat 5000s to the class. The instructor said if you introduce a loop in the network you can run the cpu to 100%, I was like really? cool, lets do it.. and we proceeded to. It was an awesome practical demonstration.

  • @Supersmallpig
    @Supersmallpig 4 місяці тому

    Thank you for the great sharing again my best teacher of networking engineering of all time 🎉❤

  • @henryjrbausa735
    @henryjrbausa735 4 місяці тому

    Many thanks for the real-life demonstration of STP attacks.😁

  • @ahorgahevans3510
    @ahorgahevans3510 4 місяці тому

    Even since I subscribed to your UA-cam channel I have understood how switch and routers communicate especially how layer 2 switch and layer 3 switches communicate
    Thanks David

  • @MISTYEYED.
    @MISTYEYED. 4 місяці тому +1

    Thank you, David.

  • @AbidHafeez-o2c
    @AbidHafeez-o2c 3 місяці тому

    Excellent explaination with practical.

  • @oshriizec8417
    @oshriizec8417 4 місяці тому

    Awesome network demonstration! Thanks a lot, appreciate your efforts!

  • @floridastefy2432
    @floridastefy2432 4 місяці тому

    I'm a great fan and I great lover of your work thanks Alot for always advising, teaching, and educating us thanks

  • @Chouaf_M19
    @Chouaf_M19 4 місяці тому

    Waouw top video I'm learning how spanning-tree really works. THX from Belgium!!

  • @Muhamed662
    @Muhamed662 4 місяці тому

    Thanks for being on UA-cam

  • @D0mie7
    @D0mie7 4 місяці тому

    This is a pretty cool video. Ngl!

  • @syed_wahid
    @syed_wahid 4 місяці тому +1

    I was Waiting and finally i got the first step

  • @michellapointe9145
    @michellapointe9145 4 місяці тому +3

    Hi Dave - small typo at 4:57 "loop gaurd" - please leave it there to remind everyone that you are human 🙂

  • @cmorbach
    @cmorbach 4 місяці тому

    Thanks for the cool videos! @2:18 You mean BPDU filter

  • @marcuswinsnes
    @marcuswinsnes 4 місяці тому

    You are my favourite youtuber 🐧

  • @AnotherName-i5z
    @AnotherName-i5z 4 місяці тому

    Great Work but i've problem to understanding maybe b'coz i don't have pre-knowledge of networking but you've done great demonstration and explanation!!!

  • @xylemroze
    @xylemroze 4 місяці тому

    Thanks David

  • @TheJokerQuotes-f6c
    @TheJokerQuotes-f6c 4 місяці тому

    Thank you

  • @RazoBeckett.
    @RazoBeckett. 4 місяці тому

    awesome sir!

  • @Hamzanadeem54692
    @Hamzanadeem54692 Місяць тому

    God bless you 😇

  • @scottspa74
    @scottspa74 4 місяці тому

    How funny, I just watched a Wendell Odom video the other day about bpdu filtering, and he used the exact same topology.

  • @-MadeinJapan
    @-MadeinJapan 4 місяці тому

    Much better

  • @gamereditor59ner22
    @gamereditor59ner22 4 місяці тому +1

    Wow!
    Edit: What other method to stop this command?...🤔

  • @anthonym.4356
    @anthonym.4356 4 місяці тому

    merci

  • @AmozishakWiFi
    @AmozishakWiFi 4 місяці тому +1

    Please teach all Kali Linux programs

  • @usamahahmed3805
    @usamahahmed3805 4 місяці тому

    Is it recommended to get David's course on Udemy for CCNA 200-301 or should I wait for him to release his course on UA-cam?
    David, does your course cover v1.1 on Udemy with a similar teaching technique to this?
    I agree, I learn much better by seeing real life scenarios and not following presentation slides.
    Thanks!

  • @floridastefy2432
    @floridastefy2432 4 місяці тому

    My dream is to become a cyber security professional but I don't have any money to buy course online so I will please like to ask you can you give me a series of UA-cam video both on your channel and any other where I can learn everything I need to know about ethical hacking and cyber security from a beginner aspect to mastery please where I can learn about the theory and the practical concept please Dav please that's my worry

  • @TheNightshadeian
    @TheNightshadeian 4 місяці тому

    Do you recommend setting loop guard global on all switches then?

  • @asamoahfrimpongkwame
    @asamoahfrimpongkwame 4 місяці тому

    can you share the PDFs for the course

  • @kamas74able
    @kamas74able 2 місяці тому

    how you control all computers on one screen?

  • @chuckcrizer
    @chuckcrizer 4 місяці тому

    Wait what? How does a port stay UP when it is receiving no light? Once down, it ain't sending anything.

  • @godbks
    @godbks 3 місяці тому

    Great video, but I don’t understand why the CCNA content started off strong and then quickly jumped into advanced topics. Most creators usually begin with basics like networking devices, then move on to IP addressing and gradually progress to intermediate topics before tackling the advanced material. I was really enjoying it at first, but I got lost once it shifted to more advanced concepts too soon.

  • @floridastefy2432
    @floridastefy2432 4 місяці тому

    Hey Dave please can you please answer me please

  • @floridastefy2432
    @floridastefy2432 4 місяці тому

    But please I have a problem please I need your help I'm a Third year student at university studying Computer Engineering but our school doesn't teach us what I need

  • @syed_wahid
    @syed_wahid 4 місяці тому

    😊

  • @PLAYERUNKNOWNBATTLEGROUND
    @PLAYERUNKNOWNBATTLEGROUND 4 місяці тому

    Sir I emailed you, but didn't get any reply, it's something urgent sir

  • @Muddasir-h6h
    @Muddasir-h6h 4 місяці тому

    sir i think your doing joking , I waiting for you after 12 days because you uploaded a video in which talked about this free course but I can not see any video related CCNA ... so kindly plz stop fake video promise

    • @DearGod-e2f
      @DearGod-e2f 4 місяці тому

      Stop being a clown and be appreciative. He’s not compelled to do what’s he’s doing.

    • @Muddasir-h6h
      @Muddasir-h6h 4 місяці тому

      @@DearGod-e2f did you know one months gone but but still there is no video of CCNA ...I am waiting for weeks for course...what I do...