Core Issue
The default behavior of the Access Point (AP) is to permit all associations.
Resolution
MAC address filters allow or disallow the forwarding of unicast and multicast packets either sent from or addressed to specific MAC addresses. You can create a filter that passes traffic to all MAC addresses except those you specify, or you can create a filter that blocks traffic to all MAC addresses except those you specify.
When you create a list of allowed MAC addresses with the intent to permit only those addresses, you must configure the AP to deny all other MAC addresses.
For APs running VxWorks, refer to the MAC Address Filtering section of Configuring Filters and QoS. For additional information, refer to the Default Multicast Address Filters section of Radio Configuration and Basic Settings.
For APs running Cisco IOS Software, refer to the Configuring and Enabling MAC Address Filters section of Configuring Filters.
Problem Type
Associated but cannot pass any traffic
Configure / Configuration issues
Client / Device cannot authenticate
Products
Workgroup bridges
Access point
Bridge
WLAN adapters (wireless card) / ACU (Aironet Client Utility)
