One of my clients asked me the below requirement.
"I wan to run CDP to all my Cisco Devices but under an ACL. The CDP will run only my LAN/WAN Devices which is allowed by IP/MAC address through an ACL.Only match IP addresses device will talk/communicate with each other."
I want to know if it is possible to meet the requirement using ACL ..
And I also know that it can be done using Cisco ISE,RADIUS-Authorization feature. but as client wants to do it by ACL , so I need a specific answer.