Loading...
Loading...
Older device attempting to use WPA2 to associate to WPA2/AES only WLAN. Client debugs show mismatch between association frame RSN IE and EAPOL-M2 frame RSN IE (length) as shown in example below: *Dot1x_NW_MsgTask_0: Apr 03 17:49:07.862: 00:40:17:6b:4d:90 Compare RSN IE in association and EAPOL-M2 frame(rsnie_len :20, and grpMgmtCipherLen:0) *Dot1x_NW_MsgTask_0: Apr 03 17:49:07.862: 00:40:17:6b:4d:90 rsnieCapabilty = 0 rsnie_len =20 *Dot1x_NW_MsgTask_0: Apr 03 17:49:07.862: 00:40:17:6b:4d:90 EAPOL-key M2 with invalid RSN IE received from mobile 00:40:17:6b:4d:90 rxed IE len :20, rxed IE length in association:22 rsnie_len to compare = 20 *Dot1x_NW_MsgTask_0: Apr 03 17:49:07.862: 00:40:17:6b:4d:90 Dumping RSNIE received in Association request(len = 22): *Dot1x_NW_MsgTask_0: Apr 03 17:49:07.862: 00000000: 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 0............... *Dot1x_NW_MsgTask_0: Apr 03 17:49:07.862: 00000010: 00 0f ac 02 28 00 ....(. *Dot1x_NW_MsgTask_0: Apr 03 17:49:07.862: 00:40:17:6b:4d:90 Dumping RSNIE received in EAPOL M2 (len = 20): *Dot1x_NW_MsgTask_0: Apr 03 17:49:07.862: 00000000: 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ................ *Dot1x_NW_MsgTask_0: Apr 03 17:49:07.862: 00000010: ac 02 00 00 ....
Older device attempting to use WPA2 to associate to WPA2/AES only WLAN on 8.5.140.0 code.
Utilize older code such as 8.2.170.2 which works fine or configure device to be WPA only and modify WLAN to be WPA/TKIP + WPA2/AES. We have introduced a new CLI to enable/disable RSN Capability validation. By default it will be enabled. (Cisco Controller) >config advanced eap rsn-capability-validation enable Enables RSN Capability validation disable Disables RSN Capability validation
Same device and same configuration works on 8.2.170.2 but does not work on 8.5.140.0.
Click on a version to see all relevant bugs
Cisco Integration
Learn more about where this data comes from
Bug Scrub Advisor
Streamline upgrades with automated vendor bug scrubs
BugZero Enterprise
Wish you caught this bug sooner? Get proactive today.