Numbered ACL Configuration Demonstration -- Access Control Lists (ACLs) -- Part 3 of 8
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- เผยแพร่เมื่อ 8 ก.ค. 2024
- Welcome to Part 3 of an eight part video series discussing Access Control Lists on Cisco IOS Routers. In this video we'll be applying what we learned about the Syntax of Numbered ACLs in Part 2 as we configure various access-list entries together.
While configuring, I'll also be talking through some important considerations for access lists.
00:00 - Intro & Part 2 Recap
00:27 - ACL Remarks
01:28 - Matching IP traffic between two Hosts
02:37 - Specifying IP Addresses
02:45 - Matching IP traffic between a Subnet and a Host
03:32 - Matching all ICMP traffic (pings, traceroute, etc)
04:36 - Matching a single TCP packet explicitly
05:40 - Five fields of an Extended ACL
05:57 - Typical way to write ACL statements
06:39 - Matching TCP/UDP traffic from a particular application
07:20 - Matching Response traffic
07:54 - Implicit Deny
09:04 - Denying TCP/UDP traffic from a particular application
10:37 - First Match processing
12:22 - Summary
12:57 - Removing entries from Numbered ACLs
13:57 - Outro
Part 1 - What are Access Lists?
• What Are Access Lists?...
Part 2 - Numbered ACL Syntax
• Numbered ACL Syntax --...
Part 3 - Numbered ACL Configuration Demonstration
• Numbered ACL Configura...
Part 4 - Named ACL Syntax
• Named ACL Syntax -- Ac...
Part 5 - Named ACL Configuration Demonstration
• Named ACL Configuratio...
Part 6 - IPv6 ACLs - Syntax and Demonstration
• IPv6 ACLs - Syntax and...
Part 7 - Applying ACLs to Interfaces
• Applying ACLs to Inter...
Part 8 - Where should you apply ACLs (closer to source or destination?)
• ACL Placement: Closer ...
Entire Series:
www.practicalnetworking.net/s... - วิทยาศาสตร์และเทคโนโลยี
Video 4: th-cam.com/video/7JdsrLW5Tvw/w-d-xo.html
Simply brilliant. Now I have an understanding and I now prefer named to numbered because of the limitations now.
I can't believe you only have 8k views. This stuff is so helpful! I feel like I found a gold mine!
Thanks again, Solomon.
If you have any ideas about how to get more visibility on these videos, I'm all ears =).
In the mean time... Could you do me a favor? Do you mind sharing this video on Linked In, Reddit, Twitter, Facebook, or any other social media you use? As an independent creator, that would be an _enormous_ help, and I would appreciate it _greatly_ .
@@PracticalNetworking That is not a problem for me at all. Happy to help out! You more than deserve it!
@@sotumodo4317 Thank you for your support.
Great video! Explains it so good to someone who has almost no clue about networking.
Awesome. Glad you enjoyed it =)
I am studying for ACLs and this course it's absolutely amazing with variety of examples!
Glad it helped you, Mr. D =).
Could you do me a favor? Do you mind sharing this video on Linked In, Reddit, Facebook, or any other social media you use? As an independent creator, that would be an _enormous_ help, and I would appreciate it _greatly_ .
@@PracticalNetworking Of course! My pleasure :) You put so much effort in, you deserve the best!! 👌
@@mrd4233 Thank you kindly, Mr. D =)
Absolutely brilliant, keep the great work :)
Heartfelt thanks for your great effort as well as the way of your explanation is excellent. Please do keep up the good work. Cheers :-)
Thank you for the kind words. Mahesh. Cheers!
I love the video series. For some more advanced users ... to re-order the ACL, you could:
do a show run
copy the contents into a text file
fix the order the way you want and save the file
tftp it back to the router
copy filename.txt running-config
=)
that would save a heap of time, good one
Great session, Thank you!
You're welcome, Mabrouk.
lovely explanation 🤩
Glad you enjoyed this =) Cheers !
Nice explanation,
excellent presentation.
Glad you are enjoying all the content on this channel =). Thanks for the kind words!
great video!
i wish i would have come across practical networking long before. i now understood how packet travels from end to end in HOST to Host communication with different interconnecting devices.
Glad to hear it, Vishal. =)
The best for ever
;)
Hey Scorpio! Glad to see you're at it hot and heavy and making an excellent represent for the whole Tribe! We rule the world. I am creating a new book on Astrological Physical Types and was going to call your type the Matthew Mcconaughey archtype. However, Matt's getting older and we all neutralize as we age so, you keep gaining in popularity, and I'll have to get together with you about labeling it the Ed Harmoush Archetype.
Greatt Video please upload part 4 thank you
Next video is going live on Tuesday =).
Thank you very much
You're welcome!
Thanks!
Thank you for your support Brie! You're my second "Thank you" =). If you enjoyed this content, I might point you to a few other resources:
Subnetting: th-cam.com/play/PLIFyRwBY_4bQUE4IB5c4VPRyDoLgOdExE.html
Networking: th-cam.com/play/PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi.html
OSPF: th-cam.com/play/PLIFyRwBY_4bSkwy0-im5ERL-_CeBxEdx3.html
Cheers, and thank you again for your support!
really interesting. am wondering whether different syntax is applicable to non cisco routers.
Hi Yokelee! It's not likely that it is. Arista's syntax is heavily based on Ciscos, so maybe for Arista devices. But generally most vendors have unique syntax.
Since the deny statement implicitly is always there at the end, if you configure an ace to deny certain actions, does the implicit deny go away?
Good question. No, it remains in place to deny all the other traffic that might not be matched by your explicit deny statement.
What software are you using to execute those commands?
GNS3 =)
@@PracticalNetworking thank you!
What is that R1 cmd ? How to get that ?
Is this course on Udemy? Wow
I did post it to Udemy as well =), at no charge: www.udemy.com/course/access-control-lists-acls-on-cisco/