Exam 300-430 topic 1 question 268 discussion

When configuring an ACL on a Cisco Wireless LAN Controller (WLC) to control IPv4 traffic to the CPU, the ACL must be applied in the inbound direction. Here's why: Inbound ACL: An inbound ACL filters traffic entering the WLC's CPU. This is the correct direction to control traffic that is destined for the CPU, such as management traffic, control traffic, or other packets that the CPU needs to process. Applying the ACL in the inbound direction ensures that unwanted or malicious traffic is filtered before it reaches the CPU, protecting the controller from potential attacks or resource exhaustion. Outbound ACL: An outbound ACL filters traffic leaving the WLC's CPU. This is not relevant for controlling traffic destined for the CPU. None/Any: These options are not valid for applying an ACL to control CPU traffic. The ACL must be explicitly applied in the inbound direction.