Michael MIC failure detected

Shawn Adams shawn_adams at web.de
Thu Nov 3 13:59:28 EST 2005


I'm wondering about the error message:

Michael MIC failure detected

does this correspond to the AP syslog message:

Information: WPA group key update fails at 00-20-d8-03-86-94

???

Thanks



State: 4WAY_HANDSHAKE -> 4WAY_HANDSHAKE
WPA: RX message 3 of 4-Way Handshake from 00:20:d8:03:8a:bc (ver=1)
WPA: IE KeyData - hexdump(len=26): dd 18 00 50 f2 01 01 00 00 50 f2 02
01 00 00 50 f2 02 01 00 00 50 f2 01 00 00
WPA: Sending EAPOL-Key 4/4
WPA: Installing PTK to the driver.
WPA: RSC - hexdump(len=6): 00 00 00 00 00 00
wpa_driver_madwifi_set_key: alg=TKIP key_idx=0 set_tx=1 seq_len=6 key_len=32
State: 4WAY_HANDSHAKE -> GROUP_HANDSHAKE
Wireless event: cmd=0x8c02 len=85
Custom wireless event: 'MLME-MICHAELMICFAILURE.indication(keyid=0
unicast addr=00:20:d8:03:86:94)'
Michael MIC failure detected
WPA: Sending EAPOL-Key Request (error=1 pairwise=1 ptk_set=1 len=99)
Wireless event: cmd=0x8c02 len=85
Custom wireless event: 'MLME-MICHAELMICFAILURE.indication(keyid=0
unicast addr=00:20:d8:03:86:94)'
Michael MIC failure detected
WPA: Sending EAPOL-Key Request (error=1 pairwise=1 ptk_set=1 len=99)
TKIP countermeasures started
wpa_driver_madwifi_set_countermeasures: enabled=1

-- 
Shawn Adams
shawn_adams at web.de




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