Well, the thing about ACL's is once you start one, being they work from the first line on down, you can't delete just a portion. You gotta start over but what I do is use a common text editor and save 'em to a file I can modify then paste it in when I'm sure. To remove one don't forget to use no ip access-group with the list number for every interface then the no access-list with list numbers as well.
Actually, I think the best way and most easiest is to setup a tftp server on your network that is secure. Copy all of your Accesslists to a file. ie: acl-10.txt, acl-30.txt, (Accesslist 10, Accesslist 30).
Make the change on your tftp server. Login to the router, issue a 'No access-list xxx" exit out of configure mode and do a copy tftp://hostname/acl-10.txt running. That will copy your entire access-list via tftp into your running config. As long as all is good, issue a "write" and you are done. This procedure works very well on large systems with a great deal of access-lists to control.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...