ACL practices when modifying and applying new policies

jaz0nj4ckaljaz0nj4ckal Junior MemberMember Posts: 19 ■□□□□□□□□□
Folks:

I am studying for my CCNA, and I am confused at how to manage ACL lists that are already applied to an interface.

For example: I have an ACL already applied to S0; however, I need to modify it. Cisco recommends that you disable the list first with the no ip access-group command; however, from my understanding, if I remove the list – traffic will be unfiltered. How do I modify an applied ACL and still filter traffic? Do I create another ACL to black all traffic until I modify my selected ACL?

Thank you

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