Specifications

D-8
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-5260-01
Appendix D Error and Event Messages
802.11 Subsystem Messages
Error Message DOT11-3-RF_LOOPBACK_FAILURE: Interface [number] Radio failed to pass
RF loopback test
Explanation
Radio loopback test failed for a radio interface.
Recommended Action None.
Error Message DOT11-3-RF_LOOPBACK__FREQ_FAILURE: Radio failed to pass RF loopback
test at freq [frequency]
Explanation
Radio loopback test failed at a given frequency.
Recommended Action None.
Error Message DOT11-AUTH_FAILED: Station [mac-address] authentication failed
Explanation The station failed authentication.
Recommended Action Verify that the user entered the correct username and password, and check that
the authentication server is online.
Error Message DOT11-CCKM_AUTH_FAILED: Station [mac-address] CCKM authentication
failed
Explanation The station failed CCKM authentication.
Recommended Action Verify that the topology of the access points configured to use the WDS access
point is functional.
Error Message DOT11-TKIP_MIC_FAILURE: TKIP Michael MIC failure was detected on a
packet (TSC=0x0) received from [mac-address]
Explanation
TKIP Michael MIC failure was detected on a unicast frame decrypted locally with the
pairwise key.
Recommended Action A failure of the Michael MIC in a packet usually indicates an active attack on
your network. Search for and remove potential rogue devices from your wireless LAN.
Error Message DOT11-TKIP_MIC_FAILURE_REPORT: Received TKIP Michael MIC failure
report from the station [mac-address] on the packet (TSC=0x0) encrypted and
protected by [key] key
Explanation
The access point received an EAPOL-key from a station notifying the access point that
TKIP Michael MIC failed on a packet transmitted by this access point.
Recommended Action None.