For the Cisco Autonomous Access Point, ensure that the SSID is configured for open + eap and network-eap when using 802.1x
authentication.
dot11 ssid voice
vlan 21
authentication
open eap
authentication
network-eap
authentication key-management wpa cckm
admit-traffic
If the Cisco Autonomous Access Point is registered to a WDS (Wireless Domain Services) server, ensure both leap and eap
types of authentication are enabled in the WDS configuration.
Cisco IP Phone 8800 Series Wireless LAN Deployment Guide
eap_methods
eap_methods
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