Specifications

D-9
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-5260-01
Appendix D Error and Event Messages
Inter-Access Point Protocol Messages
Error Message DOT11-TKIP_MIC_FAILURE_REPEATED: Two TKIP Michael MIC failures were
detected within [number] seconds on [interface] interface. The interface will be
put on MIC failure hold state for next [number] seconds
Explanation
Because MIC failures usually indicate an active attack on your network, the interface
will be put on hold for the configured time. During this hold time, stations using TKIP ciphers are
disassociatedand cannot reassociate until the hold time ends. At the end of the hold time, the interface
operates normally.
Recommended Action Michael MIC failures usually indicate an active attack on your network. Search
for and remove potential rogue devices from your wireless LAN. If this is a false alarm and the
interface should not be on hold this long, use the countermeasure tkip hold-time command to adjust
the hold time.
Inter-Access Point Protocol Messages
Error Message DOT11-6-ROAMED: Station [mac-address] Roamed to [mac-address]
Explanation
A station has roamed to a new access point.
Recommended Action None.
Error Message DOT11-6-STANDBY_ACTIVE: Standby to Active, Reason = [chars] ([int])
Explanation The access point is transitioning from standby mode to active mode.
Recommended Action None.
Error Message DOT11-6-ROGUE_AP: Rogue AP [mac-address] reported. Reason: [chars]
Explanation
A station has reported a potential rogue access point for the stated reason.
Recommended Action None.
Error Message SCHED-3-UNEXPECTEDMESSAGE: Unknown message [hex] received (ptr arg
[hex], num arg [hex]).
Explanation
A process can register to be notified when various events occur in the router. This
message indicates that a process received a message from another process that it does not know how
to handle.
Recommended Action Copy the error message exactly as it appears, and report it to your technical
support representative.