Numbered ACL Syntax -- Access Control Lists (ACLs) -- Part 2 of 8

Welcome to Part 2 of an eight part series discussing Access Control Lists on Cisco IOS Routers. In this video we will be picking apart the syntax to configure Numbered ACLs on Cisco Routers. I'll show you the command, and then we'll talk through each field.
0:00 - Start / Review of Part 1
0:42 - Two sets of Syntax (Named vs Numbered)
1:05 - Syntax for Numbered ACL (Standard and Extended)
1:26 - Command: access-list
1:37 - ID Number
3:28 - Action
4:42 - Protocol
5:37 - Source and/or Destination
5:57 - Specifying IP Address
6:39 - Specifying Ports
8:11 - Summary and 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...

[@PracticalNetworking]

Part 3 is available here: kzbin.info/www/bejne/aZrYaIGJpqeHesk

[@chineduokafor687]

Implementing some ACLs this week got me so confused. But after going through all the video series of Access Control lists, I was able to implement the rules in less than 5 minutes. Thank you very much👍😊

[@firewall_warden]

Thank you so much for the content. The Ads are just a small price to pay. I am not skipping any.

[@PracticalNetworking]

That is very kind of you. Thank you for your support. Glad you enjoyed the content.

[@wutangdf]

I read the chapter on netacad and was lost. I watched your videos and it's crystal clear! Thank you very much.

[@PracticalNetworking]

You're very welcome, Wutangdf. Glad you understand ACLs =). Do me a favor... you probably know others that would benefit from this series. Would you be willing to share this content amongst your peers?

[@02stampede]

Very well done and easy to understand. Thanks!

[@PracticalNetworking]

Thank you. Glad you liked the video =)

[@ankur9829]

your videos are really helpful for me in my current situation.

[@PracticalNetworking]

Glad to hear =)

[@guimaraeste]

Thank you so much!!!! It helped me a lot

[@PracticalNetworking]

Glad it helped!

[@alexandrkovalsky1711]

great video!

[@carcamp5451]

நன்றிகள்😇

[@misadmin4782]

Hi, I appreciate your content more power

[@PracticalNetworking]

Cheers, glad you enjoyed it!

[@ciscobatais2]

well done

[@admin_e]

thank very much

[@PracticalNetworking]

Thank you for your support, Erkin =). Glad you've enjoyed this content!

[@pavelkarvutev8051]

Amazinggggggg..............................

[@PracticalNetworking]

Thank you, Pavel =)

[@ediomuhanzule7279]

Great content I'll recommend my professor to we maybe he can learn how to lesson

[@PracticalNetworking]

Thanks, Edio =)

[@storyjesse]

Thank you so much for this course! I've been trying to find a (starting at the start) explanation of firewalls and a little digging has now shown me that iptables on linux are an implementation of ACLs on Linux. If I've understood correctly iptables actually works with the linux kernel to build and maintain the kernel's ACL. So iptables is a front-end to the kernel's ACL. Have I got that right?

[@ewoutverheij4745]

So if I understand this correctly, for ID numbers in an standard ACL it's either 1-99 OR 1300-1999, you cannot use both at the same time in the same list? If that's the case then the same would apply for the Extended number set I presume.

[@PracticalNetworking]

The ID# _is_ what identifies _each_ ACL. You can absolutely have a single router with thirty lines in ACL 55 and another forty lines in ACL 1355 --- both of them would be Standard ACLs. So you can use them at the same time on the same router, but by definition they would be different access control lists.

[@BekoIQ]

Where y was bro , amazing explain just want ask you some information not be mentioned with other why I don't know its ccnp level or no , and I hope see like this for prefix-list , route-map Thanks again from my heart

[@PracticalNetworking]

I might cover prefix lists and route-maps when I cover BGP. Glad you enjoyed this =)