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Why does MAC authentication not work with Wi-Fi Protected Access (WPA) in Cisco IOS Software Release 12.3(8)JA2?

April 26, 2017authentication cisco ios Mac protected release Software wi-fi wpa

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Why does MAC authentication not work with Wi-Fi Protected Access (WPA) in Cisco IOS Software Release 12.3(8)JA2?

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A. The only level of security for MAC authentication is to check the MAC address of the client against a list of permitted MAC addresses. This is considered very weak. In earlier Cisco IOS Software releases, you could configure MAC authentication and WPA to encrypt the information. But because WPA itself has a MAC address that checks, Cisco decided not to allow this type of configuration in later Cisco IOS Software releases and decided only to improve security features.