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Re: Strange problem with ath9k and ASUS N66U AP.

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On 04/24/2012 03:50 PM, Ben Greear wrote:
I am trying some ath9k virtual clients against an ASUS N66U.

Kernel is 3.3.3+, but we've been seeing weird things since at
least 3.0 kernel with another Asus AP, but haven't looked at
the problem in detail on older kernels yet.

The issue seems to be that the ath9k side thinks all is well,
but the N66U shows it as not authenticated.

If anyone has any ideas on how to go about debugging
this, please let me know.

sta11 is :0C, and is not working properly
sta12 is :0D, and is working fine.

Here is part of the N66U wifi log showing that it
thinks sta11 is not authorized:

00:95:95:00:00:0C  associated
00:95:95:00:00:0D  associated authorized

Here's a better log.  Makes me think supplicant might be at fault???

sta8 failed, sta9 works fine.  The difference appears to be the extra
RX EAPOL packet that sta8 receives...

1335313181.632116: sta8: Event ASSOC (0) received
1335313181.632121: sta8: Association info event
1335313181.632151: sta8: freq=2462 MHz
1335313181.632155: sta8: State: ASSOCIATING -> ASSOCIATED
1335313181.632171: sta8: Associated to a new BSS: BSSID=c8:60:00:e8:88:b0
1335313181.632194: sta8: No keys have been configured - skip key clearing
1335313181.632199: sta8: Associated with c8:60:00:e8:88:b0
1335313181.632203: sta8: WPA: Association event - clear replay counter
1335313181.632207: sta8: WPA: Clear old PTK
1335313181.632313: sta8: Setting authentication timeout: 10 sec 0 usec
1335313181.632318: sta8: Cancelling scan request
1335313181.965215: sta8: RX EAPOL from c8:60:00:e8:88:b0
1335313181.965261: sta8: Setting authentication timeout: 10 sec 0 usec
1335313181.965276: sta8: IEEE 802.1X RX: version=2 type=3 length=117
1335313181.965286: sta8:   EAPOL-Key type=2
1335313181.965294: sta8:   key_info 0x8a (ver=2 keyidx=0 rsvd=0 Pairwise Ack)
1335313181.965302: sta8:   key_length=16 key_data_length=22
1335313181.965358: sta8: State: ASSOCIATED -> 4WAY_HANDSHAKE
1335313181.965364: sta8: WPA: RX message 1 of 4-Way Handshake from c8:60:00:e8:88:b0 (ver=2)
1335313181.965386: sta8: RSN: no matching PMKID found
1335313181.965838: sta8: WPA: Sending EAPOL-Key 2/4
1335313181.999176: sta8: RX EAPOL from c8:60:00:e8:88:b0
1335313181.999235: sta8: IEEE 802.1X RX: version=2 type=3 length=175
1335313181.999241: sta8:   EAPOL-Key type=2
1335313181.999248: sta8:   key_info 0x13ca (ver=2 keyidx=0 rsvd=0 Pairwise Install Ack MIC Secure Encr)
1335313181.999253: sta8:   key_length=16 key_data_length=80
1335313181.999414: sta8: State: 4WAY_HANDSHAKE -> 4WAY_HANDSHAKE
1335313181.999422: sta8: WPA: RX message 3 of 4-Way Handshake from c8:60:00:e8:88:b0 (ver=2)
1335313181.999465: sta8: WPA: Sending EAPOL-Key 4/4
1335313181.999526: sta8: WPA: Installing PTK to the driver
1335313181.999655: sta8: State: 4WAY_HANDSHAKE -> GROUP_HANDSHAKE
1335313181.999671: sta8: WPA: Installing GTK to the driver (keyidx=1 tx=0 len=32)
1335313181.999745: sta8: WPA: Key negotiation completed with c8:60:00:e8:88:b0 [PTK=CCMP GTK=TKIP secure=512 dbg=pairwise-gtk]
1335313181.999753: sta8: Cancelling authentication timeout
1335313181.999759: sta8: State: GROUP_HANDSHAKE -> COMPLETED
1335313181.999764: sta8: CTRL-EVENT-CONNECTED - Connection to c8:60:00:e8:88:b0 completed (auth) [id=0 id_str=]
1335313182.000884: RTM_NEWLINK, IFLA_IFNAME: Interface 'sta8' added

1335313182.063407: sta8: RX EAPOL from c8:60:00:e8:88:b0
1335313182.063475: sta8: IEEE 802.1X RX: version=2 type=3 length=175
1335313182.063482: sta8:   EAPOL-Key type=2
1335313182.063491: sta8:   key_info 0x13ca (ver=2 keyidx=0 rsvd=0 Pairwise Install Ack MIC Secure Encr)
1335313182.063497: sta8:   key_length=16 key_data_length=80
1335313182.063685: sta8: State: COMPLETED -> 4WAY_HANDSHAKE
1335313182.063695: sta8: WPA: RX message 3 of 4-Way Handshake from c8:60:00:e8:88:b0 (ver=2)
1335313182.063745: sta8: WPA: Sending EAPOL-Key 4/4
1335313182.063842: sta8: WPA: Installing PTK to the driver
1335313182.069303: sta8: State: 4WAY_HANDSHAKE -> GROUP_HANDSHAKE
1335313182.069318: sta8: WPA: Installing GTK to the driver (keyidx=1 tx=0 len=32)
1335313182.082245: sta8: WPA: Key negotiation completed with c8:60:00:e8:88:b0 [PTK=CCMP GTK=TKIP secure=512 dbg=pairwise-gtk]
1335313182.082261: sta8: Cancelling authentication timeout
1335313182.082270: sta8: State: GROUP_HANDSHAKE -> COMPLETED


1335313181.588919: RTM_NEWLINK, IFLA_IFNAME: Interface 'sta9' added
1335313181.588949: RTM_NEWLINK, IFLA_IFNAME: Interface 'sta9' added
1335313181.631797: sta9: Event ASSOC (0) received
1335313181.631802: sta9: Association info event
1335313181.631825: sta9: freq=2462 MHz
1335313181.631829: sta9: State: ASSOCIATING -> ASSOCIATED
1335313181.631845: sta9: Associated to a new BSS: BSSID=c8:60:00:e8:88:b0
1335313181.631868: sta9: No keys have been configured - skip key clearing
1335313181.631873: sta9: Associated with c8:60:00:e8:88:b0
1335313181.631877: sta9: WPA: Association event - clear replay counter
1335313181.631881: sta9: WPA: Clear old PTK
1335313181.631984: sta9: Setting authentication timeout: 10 sec 0 usec
1335313181.631990: sta9: Cancelling scan request
1335313181.963212: sta9: RX EAPOL from c8:60:00:e8:88:b0
1335313181.963250: sta9: Setting authentication timeout: 10 sec 0 usec
1335313181.963262: sta9: IEEE 802.1X RX: version=2 type=3 length=117
1335313181.963279: sta9:   EAPOL-Key type=2
1335313181.963289: sta9:   key_info 0x8a (ver=2 keyidx=0 rsvd=0 Pairwise Ack)
1335313181.963298: sta9:   key_length=16 key_data_length=22
1335313181.963409: sta9: State: ASSOCIATED -> 4WAY_HANDSHAKE
1335313181.963420: sta9: WPA: RX message 1 of 4-Way Handshake from c8:60:00:e8:88:b0 (ver=2)
1335313181.963457: sta9: RSN: no matching PMKID found
1335313181.964203: sta9: WPA: Sending EAPOL-Key 2/4
1335313181.997092: sta9: RX EAPOL from c8:60:00:e8:88:b0
1335313181.997141: sta9: IEEE 802.1X RX: version=2 type=3 length=175
1335313181.997148: sta9:   EAPOL-Key type=2
1335313181.997156: sta9:   key_info 0x13ca (ver=2 keyidx=0 rsvd=0 Pairwise Install Ack MIC Secure Encr)
1335313181.997162: sta9:   key_length=16 key_data_length=80
1335313181.997343: sta9: State: 4WAY_HANDSHAKE -> 4WAY_HANDSHAKE
1335313181.997351: sta9: WPA: RX message 3 of 4-Way Handshake from c8:60:00:e8:88:b0 (ver=2)
1335313181.997402: sta9: WPA: Sending EAPOL-Key 4/4
1335313181.997468: sta9: WPA: Installing PTK to the driver
1335313181.997584: sta9: State: 4WAY_HANDSHAKE -> GROUP_HANDSHAKE
1335313181.997599: sta9: WPA: Installing GTK to the driver (keyidx=1 tx=0 len=32)
1335313181.997688: sta9: WPA: Key negotiation completed with c8:60:00:e8:88:b0 [PTK=CCMP GTK=TKIP secure=512 dbg=pairwise-gtk]
1335313181.997697: sta9: Cancelling authentication timeout
1335313181.997705: sta9: State: GROUP_HANDSHAKE -> COMPLETED
1335313181.997713: sta9: CTRL-EVENT-CONNECTED - Connection to c8:60:00:e8:88:b0 completed (auth) [id=0 id_str=]
1335313181.998971: RTM_NEWLINK, IFLA_IFNAME: Interface 'sta9' added



--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc  http://www.candelatech.com

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