Invalid Tunnel MIC

Jack Yip Jack
Wed Mar 26 10:16:05 PDT 2008


Hi,
I am working with the EAP-FAST with the Cisco Server AP.
 
But I got  the following debug msg from the Cisco Server. And it said there is invalid tunnel MIC.
 

*Mar  8 06:02:30.107: RADSRV EAP-FAST: Add teap client 0011.d605.2cdc
*Mar  8 06:02:30.107: RADSRV EAP-FAST:  Sending TEAP start
*Mar  8 06:02:30.253: RADSRV EAP-FAST: verify client_hello
*Mar  8 06:02:30.253: RADSRV EAP-FAST: PAC to be provisioned, parsed 49, length
49

*Mar  8 06:02:30.253: RADSRV EAP-FAST: Build (provision) Server Hello, 0011.d605
.2cdc
*Mar  8 06:02:30.254: RADSRV EAP-FAST: Calculting DH Server public.. 0011.d605.2
cdc
*Mar  8 06:02:30.466: RADSRV EAP-FAST: DH public number generation failed
*Mar  8 06:02:30.466: RADSRV EAP-FAST:  Sending Server Hello, 0011.d605.2cdc
*Mar  8 06:02:41.137: RADSRV EAP-FAST: verify client_finished, 0011.d605.2cdc
*Mar  8 06:02:41.137: RADSRV EAP-FAST: Calculting premaster secret..
*Mar  8 06:02:41.405: RADSRV EAP-FAST: Calculating Master secret...
*Mar  8 06:02:41.408: RADSRV EAP-FAST: tunnel Decrypt pak (size 48):
*Mar  8 06:02:41.408:  Data out
00DAA450:                            59C9D621              YIV!
00DAA460: CCF5E055 050EB6CB B37CF708 D97A0DB5  Lu`U..6K3|w.Yz.5
00DAA470: C6D7FF1C 65B2A7FB 6A8D2F7A CEC3BB13  FW..e2'{j./zNC;.
00DAA480: 16D843E6 46E37722 E3B7C3EF           .XCfFcw"c7Co
*Mar  8 06:02:41.409: RADSRV EAP-FAST: invalid tunnel MIC
*Mar  8 06:02:41.409: RADSRV EAP-FAST: sending alert level 2, desc 0
*Mar  8 06:02:56.409: RADSRV EAP-FAST: Timer expired,  teap client 0011.d605.2cd
c
*Mar  8 06:02:56.409: RADSRV EAP-FAST: Delete teap client 0011.d605.2cdc

 
 
Do anyone know what is the problem?
Is that because I set the parameter wrongly inside the structure "wpa_ssid" at the beginning?
 
Please advise!!!
 
Jack
 
 
 
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