topic Re: How do I remove a single ACL line in a 2811 router? in Network Security

How do I remove a single ACL line in a 2811 router?

ttrevino1 — Mon, 11 Mar 2019 11:00:21 GMT

I need to remove one line of code in a Cisco 2811 router, without removing the entire ACL. I'm used to making these changes in firewalls, but have figured out it's a little different in the router. Can someone provide me with some instruction? I heard I need to go into a sub-interface of the acl, but how do I do that?

Also, will making this change affect any traffic routing through this router?

Thanks for the help, I'm going to need to make this change within the next hour or so.

Re: How do I remove a single ACL line in a 2811 router?

kevin.shi — Tue, 21 Aug 2007 15:15:35 GMT

If it is a extended CAL(100-199), you can go to extended mode to delete/add items without affecting live traffic.

for example:

ip access-list extended 120

no .....

Re: How do I remove a single ACL line in a 2811 router?

kevin.shi — Tue, 21 Aug 2007 15:21:44 GMT

same story for the standard ACL, hope it helps!

Re: How do I remove a single ACL line in a 2811 router?

ttrevino1 — Tue, 21 Aug 2007 15:30:50 GMT

It is, 101. So if I use that command,

"ip access-list extended 101", that will put me into the sub-interface, allowing me to remove individual lines of code?

Re: How do I remove a single ACL line in a 2811 router?

kevin.shi — Tue, 21 Aug 2007 15:46:10 GMT

ip access-list extended 101 then press 'enter'

you will get into 'sub-interface' of ACL

Re: How do I remove a single ACL line in a 2811 router?

anandramapathy — Wed, 22 Aug 2007 07:51:51 GMT

The process is as follows

show access-list (NAME )

It will show you the access list with the line number

10 Line 1

20 Line 2

30 Line 3

40 Line 4

Suppose you want to remove Line 3,

conf t

ip accesss-list extended (name )

>no 30

That should remove your Line.

HTH Pls rate if it helps

Re: How do I remove a single ACL line in a 2811 router?

ttrevino1 — Wed, 22 Aug 2007 16:56:59 GMT

This is resolved, thanks for the help! 🐵

Thank You :) Best Regards

Didier Ribbens — Sun, 06 Sep 2015 05:29:42 GMT

Thank You 🙂

Best Regards,

Didier

Re: How do I remove a single ACL line in a 2811 router?

mertyilmaz — Wed, 05 Feb 2020 14:47:05 GMT

I really appreciate this. Thank you very much. My second CCNA attempt will be on this Friday. I wish you all the best.

Re: How do I remove a single ACL line in a 2811 router?

mertyilmaz — Wed, 05 Feb 2020 14:48:38 GMT

I really appreciate this. Thank you very much. My second CCNA attempt will be on this Friday. I wish you all the best.