Access Control Lists | Cisco CCNA 200-301

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  • เผยแพร่เมื่อ 7 มิ.ย. 2021
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    Access control lists, also known as ACLs or access lists, are rule-based lists that are used by switches and routers to identify traffic. They can identify traffic based on source address, destination address and port numbers.
    The most common use for an access list is to deny or permit traffic, but there are other uses for Access Lists such as configuring Network Address Translation (NAT) and Quality of Service (QoS).
    Standard Access List
    Standard access lists only use the source address to identify traffic.
    A standard access list uses numbers between 1 - 99.
    Cisco decided to expand this to also include 1300 - 1999
    Extended Access List
    Extended access lists allow us to identify traffic based on the destination address, protocol and port number.
    Extended access lists use numbers 100 - 199 and expanded numbers 2000 - 2699.
    Named Access List
    A name access list allows standard or extended access list to be given names rather than numbers. If you have multiple access lists on a device, named lists makes it easier to identify what each list does making them easier to manage.
    #ccna #cisco #networking

ความคิดเห็น • 88

  • @Da_Black_Man
    @Da_Black_Man 2 ปีที่แล้ว +31

    You guys literally break it down 100x better than the course from Cisco themselves 👏🏾

    • @TideTurn
      @TideTurn หลายเดือนก่อน

      I concur, those words came right out of my mouth

  • @bobbinatorrah67
    @bobbinatorrah67 3 ปีที่แล้ว +15

    I've been watching cisco videos for a couple of years first for my CCENT, now my CCNA, and yours are my absolute favorite. I've learned and forgotten exactly how and what some of these topics are that I don't use daily, and your videos really, really help.

    • @Certbros
      @Certbros  2 ปีที่แล้ว

      Thank you! Great to hear these video are helping you brush up on these topics.

  • @ardentdfender4116
    @ardentdfender4116 ปีที่แล้ว

    Found the link in the description under the vid that links to the full course on Teachable. Bought it. Done! I’ve no doubt it will be worth it and don’t mind the financial support in doing so either. Will finish watching the TH-cam CCNA Playlist since I’m almost done with 3-4 vids left to watch.

  • @GianniKoch
    @GianniKoch 3 ปีที่แล้ว +9

    Damn, I've already watched 10+ video's today helping me explain the slides of cisco, have an exam soon so thanks a lot for speeding the study up by explaining things so clearly! Keep up the awesome work!

    • @Certbros
      @Certbros  3 ปีที่แล้ว +1

      Thank you Gianni! Really glad this video helped you out.
      Good luck with the exam!! You'll smash it 👍

    • @zes3813
      @zes3813 2 ปีที่แล้ว

      no suhc thin gas worryx aobut it, no worryx nmw, no such thing as will xlookx or understandx or not, no worryx for suchx, anyx, dothigns not wory about thingx, otherx

  • @ravikeshri1
    @ravikeshri1 2 ปีที่แล้ว

    An explanation so clear and crisp!

  • @RexRai-dt6fx
    @RexRai-dt6fx 24 วันที่ผ่านมา

    Really explained in a clear way Sir

  • @oriostx
    @oriostx 10 หลายเดือนก่อน

    Great video! This was so helpful, thank you for breaking it down.

  • @Batukibatta
    @Batukibatta ปีที่แล้ว

    I really liked the video .. it’s soo good and descriptive. I had my paper still I took tym to write and to appreciate the work done by this young man 😅.

  • @FonsieClaw
    @FonsieClaw 3 ปีที่แล้ว +2

    Very clear explanation once again, thank you so much for these videos, you are an enormous help.

    • @Certbros
      @Certbros  3 ปีที่แล้ว

      Thank you! Glad you liked it.

  • @benjaminblankson4297
    @benjaminblankson4297 4 หลายเดือนก่อน

    Excellent teaching. An extremely clear explanation. Thanks

  • @NemohegbeJr
    @NemohegbeJr 3 หลายเดือนก่อน

    CertBros My Hero💪

  • @robbiwafik494
    @robbiwafik494 2 ปีที่แล้ว

    Thanks for the video, really clear and concise explanatory.

  • @gd2860
    @gd2860 ปีที่แล้ว

    I love how u broke it down dumb style for my brain. Thumbs up!!!!!!!!!! Do a packet capture vid like this using EPC

  • @Dev_skoll
    @Dev_skoll 3 ปีที่แล้ว +45

    You guys need to make a Udemy Course, I feel your content surpasses much of the paid content on there. I'm saying this because you deserve something out of the content you release.

    • @xxjustinx34xx
      @xxjustinx34xx 3 ปีที่แล้ว +3

      Yes please that would be great!

    • @Certbros
      @Certbros  3 ปีที่แล้ว +11

      Thanks Bryce! I really appreciate the thought!
      While I don't have a Udemy course, I am in the middle of making a full course on teachable. Link in the description if you are interested.

    • @Da_Black_Man
      @Da_Black_Man 2 ปีที่แล้ว +1

      I agree

    • @cryptodax6922
      @cryptodax6922 ปีที่แล้ว +2

      @@Certbros just bought the curse for 10 dollars !!! im sure my soon will buy your CISCO certified Guide in 10 years from now !! good job and thanks, when I feel something is not right your vides helps a lot !

    • @Certbros
      @Certbros  ปีที่แล้ว +1

      @@cryptodax6922 Thank you! Happy to hear the videos have been helping and thank you for your support. Enjoy the course and let me know if you get stuck!

  • @songlyrics6612
    @songlyrics6612 3 ปีที่แล้ว +5

    This channel needs more subs

    • @Certbros
      @Certbros  3 ปีที่แล้ว +1

      Thanks! Got my eyes on that 100k! 😁

    • @songlyrics6612
      @songlyrics6612 3 ปีที่แล้ว +1

      @@Certbros u deserve more mate , keep up the great work

    • @Certbros
      @Certbros  3 ปีที่แล้ว +1

      Thanks mate, I appreciate it 🙏

  • @luck4o_
    @luck4o_ 2 ปีที่แล้ว

    Cara, que explicação sensacional! Muito bom

  • @emmanueladuku8136
    @emmanueladuku8136 3 ปีที่แล้ว +2

    Great yet simple as usual.

    • @Certbros
      @Certbros  3 ปีที่แล้ว

      Thank you Emmanuel! Appreciate it 👌

  • @kumarraunak3884
    @kumarraunak3884 ปีที่แล้ว

    Why i didn't discovered this channel earlier 😢. You really explain complex topic in easy to understand simple manner. Your presentation is fabulous.

  • @szymon2633
    @szymon2633 2 ปีที่แล้ว

    Good one, helped a lot!

  • @mehdiroudeau8809
    @mehdiroudeau8809 ปีที่แล้ว

    i love u guys u are helping me sooooooooooo much

  • @andrewritchie1699
    @andrewritchie1699 2 ปีที่แล้ว

    Great video. Thank you.

  • @piyush42962
    @piyush42962 2 ปีที่แล้ว

    I have now a fair understanding of ACLS. All I need now is to regularly practice it.

  • @ukaszkiepas57
    @ukaszkiepas57 19 วันที่ผ่านมา +1

    thank you ! :)

  • @techinfor864
    @techinfor864 2 ปีที่แล้ว

    Great explanation, Thanks

  • @JunPetsWorld
    @JunPetsWorld 2 ปีที่แล้ว

    Excellent explanation.

  • @zikobht6618
    @zikobht6618 5 หลายเดือนก่อน

    Amazing video!! The only thing omho you should've talked about is how to apply the ACL on an interface (in/out). Thanks for sharing these amazing videos

  • @b5mrjacob373
    @b5mrjacob373 9 วันที่ผ่านมา

    Thank you so much

  • @ichrakstudent2558
    @ichrakstudent2558 2 ปีที่แล้ว

    The most helpful and straight to the point video ever. Subscribed. Love your vids guys.

  • @mahadihasanazad1400
    @mahadihasanazad1400 2 ปีที่แล้ว

    Wonderful teaching method.

  • @balintmucsanyi6322
    @balintmucsanyi6322 2 ปีที่แล้ว

    Great video

  • @Martin_JY
    @Martin_JY ปีที่แล้ว

    Thank you!

  • @vargaszilvia774
    @vargaszilvia774 ปีที่แล้ว

    awesome thank you

  • @abdirahman6734
    @abdirahman6734 2 ปีที่แล้ว

    thank you bro

  • @douvicndilbe663
    @douvicndilbe663 2 ปีที่แล้ว

    Thanks very much .

  • @m-electronics5977
    @m-electronics5977 10 หลายเดือนก่อน

    First: very good video, I must use ACLs yesterday but not for the "default" use case. I must use ACL to specify which prefixes will get an LDP Label! There I've must think a lot because of is the prefix now source or destination.😅
    I still don't understand it in this usecase but when you think it don't name SRC and DST rather Input and Output of a function then it makes sense it must be source. But thanks for your video also when I understand this direct because it is like FW Rules...

  • @chukwudin2189
    @chukwudin2189 3 ปีที่แล้ว +2

    Nice vid🔥

    • @Certbros
      @Certbros  3 ปีที่แล้ว

      First comment 👌 Thank you!

  • @leothalion3983
    @leothalion3983 3 ปีที่แล้ว +1

    Awesome!

    • @Certbros
      @Certbros  3 ปีที่แล้ว

      Thanks! 👍

  • @Acradus
    @Acradus 2 ปีที่แล้ว +2

    This video did not cover how to determine which direction on the interface the port it is applied on, could you elaborate on this?

  • @user-me4et3bp7k
    @user-me4et3bp7k 2 ปีที่แล้ว

    Was cool

  • @chrispainter3602
    @chrispainter3602 3 ปีที่แล้ว +4

    Thanks for the video, your effort is appreciated!
    Clear and concise, great delivery too.
    I wanted to find out more but came up to some roadblocks:
    The register your interest link is broken, brings up a 404.
    The amazon link just links to amazon, not a specific product.
    The exam link also brings up a 404.
    Hope this helps you and everyone who comes across this great video

    • @Certbros
      @Certbros  3 ปีที่แล้ว +1

      Thanks for the heads up Chris! I've fixed all of the links now.
      Glad you liked the video.

    • @chrispainter3602
      @chrispainter3602 3 ปีที่แล้ว +1

      @@Certbros I will take another look, thanks

  • @ardentdfender4116
    @ardentdfender4116 ปีที่แล้ว

    Understanding use of Wildcards often usually screws my brain into short circuit thinking. But it’s made a bit easier in thinking 🤔 when you say it’s totally inverse of regular subnet mark or in how it’s written in meaning. Much understandable. ACLs can be damn confusing really in my opinion and takes a lot of work to understand them, their use and where exactly they are used.

    • @Karma-nc3kg
      @Karma-nc3kg หลายเดือนก่อน

      absolutely

  • @111hhhhhhd
    @111hhhhhhd 3 ปีที่แล้ว +1

    so good

    • @Certbros
      @Certbros  2 ปีที่แล้ว

      Thank you!

  • @JWTechStream
    @JWTechStream 3 ปีที่แล้ว +6

    Could you also cover best placement location for ACL's? like which router to place them on etc, inbound outbound

    • @Certbros
      @Certbros  3 ปีที่แล้ว +6

      Great suggestion! If I get more interest I'll make a part 2 for placement.

    • @tresmcneil
      @tresmcneil 2 ปีที่แล้ว +1

      @@Certbros I’d be down for a part 2

    • @trayjobe6995
      @trayjobe6995 2 ปีที่แล้ว +2

      @@Certbros me to . been studying for the CCNA acls lost me a little. + there commands can get long

    • @ardentdfender4116
      @ardentdfender4116 ปีที่แล้ว

      This would be a much needed video as this is quite important where these ACLs are placed.

  • @ganapathyramakrishnan1190
    @ganapathyramakrishnan1190 3 ปีที่แล้ว +1

    @CertBros Your explanation are really WOW.. is there anyway you can explain BNG[Broadband Network gateway] concept ?

    • @Certbros
      @Certbros  2 ปีที่แล้ว

      Thank you! If enough people make a suggestion then I'll certainly look into making it 👍

  • @rafapilecki1256
    @rafapilecki1256 2 ปีที่แล้ว

    You forgot to mention that Extended ACL's are stored near to Source and Standard ACL's next to Destination of the traffic

  • @sateeshmendadala1329
    @sateeshmendadala1329 2 ปีที่แล้ว

    Tq

  • @joedarvish70
    @joedarvish70 2 ปีที่แล้ว

    Good video. problem is too many commercial interruptions.

  • @ciscobatais2
    @ciscobatais2 9 หลายเดือนก่อน

    better than cisco courses itselves 👍👍

  • @imherovirat
    @imherovirat 3 ปีที่แล้ว +1

    Hey CertBros please Make a video on subnetting.
    How Isp provider give us Ip address?
    How can i know how many Devices can i connect on my router?
    How can i know how many active hosts are there using my wifi?

    • @Certbros
      @Certbros  3 ปีที่แล้ว +1

      Thanks for the suggestions Aashish! If more people request these then I'll happily put some videos together.

    • @MegaNatebreezy
      @MegaNatebreezy 3 ปีที่แล้ว

      @@Certbros Please make a video on subnetting!

  • @sIdeoFFx
    @sIdeoFFx 2 ปีที่แล้ว

    I believe there’s a mistake in this video. At 10:38 in, he says destined for that first ACL entry instead of sourced from.

    • @mokodo_
      @mokodo_ 2 ปีที่แล้ว

      not a mistake my friend, he was mentioning the Destination IP address at 10:38

  • @AMina-rb9tm
    @AMina-rb9tm 3 ปีที่แล้ว +1

    Could you make a video about QoS?

    • @Certbros
      @Certbros  3 ปีที่แล้ว +1

      Yes QoS is on my to-do list 👍

    • @AMina-rb9tm
      @AMina-rb9tm 3 ปีที่แล้ว +1

      @@Certbrosawesome 😎

  • @rachidnageeye7865
    @rachidnageeye7865 3 ปีที่แล้ว

    We are also need NAT

    • @salimmali9533
      @salimmali9533 3 ปีที่แล้ว +1

      bro cyber s miyad barta

    • @rachidnageeye7865
      @rachidnageeye7865 3 ปีที่แล้ว

      @@salimmali9533 hda networking ayan ku dhax jiraa lkn for future ayan rajeyna Cyber

  • @tahersadeghi6773
    @tahersadeghi6773 ปีที่แล้ว

    Numbah?

  • @mareek4173
    @mareek4173 2 ปีที่แล้ว

    kamo co to je :/(