wpa_supplicant drops connection

Brian Carey BrianC at newmexicobusinesssolutions.com
Fri Jun 9 20:19:09 EDT 2006


Hi,

For some reason my wpa connections are dropping/timing out. I've noticed 
this behavior on a number of networks, and did not have the problem when 
using wep encryption, so I'm pretty sure it's wpa related.

Versions:
Slackware 10.2
Linux 2.6.13
wpa_supplicant 0.4.9
Any others needed?

Here is some of the output, let me know if it is not enough:

Initializing interface 'wlan0' conf '/etc/wpa_supplicant.conf' driver 
'wext' ctrl_interface 'N/A'
Configuration file '/etc/wpa_supplicant.conf' -> '/etc/wpa_supplicant.conf'
Reading configuration file '/etc/wpa_supplicant.conf'
ctrl_interface='/var/run/wpa_supplicant'
ctrl_interface_group=0
eapol_version=1
ap_scan=1
fast_reauth=1
Priority group 2
id=0 ssid='cocomango'
id=1 ssid='wsha'
id=2 ssid='OneStop'
        Initializing interface (2) 'wlan0'
        EAPOL: SUPP_PAE entering state DISCONNECTED
        EAPOL: KEY_RX entering state NO_KEY_RECEIVE
        EAPOL: SUPP_BE entering state INITIALIZE
        EAP: EAP entering state DISABLED
        EAPOL: External notification - portEnabled=0
        EAPOL: External notification - portValid=0
        SIOCGIWRANGE: WE(compiled)=18 WE(source)=18 enc_capa=0xe
          capabilities: key_mgmt 0xa enc 0xf
          Own MAC address: 00:90:4b:9e:b8:0e
          wpa_driver_wext_set_wpa
          wpa_driver_wext_set_key: alg=0 key_idx=0 set_tx=0 seq_len=0 
key_len=0
          wpa_driver_wext_set_key: alg=0 key_idx=1 set_tx=0 seq_len=0 
key_len=0
          wpa_driver_wext_set_key: alg=0 key_idx=2 set_tx=0 seq_len=0 
key_len=0
          wpa_driver_wext_set_key: alg=0 key_idx=3 set_tx=0 seq_len=0 
key_len=0
          wpa_driver_wext_set_countermeasures
          wpa_driver_wext_set_drop_unencrypted
          Setting scan request: 0 sec 100000 usec
          Added interface wlan0
          Wireless event: cmd=0x8b06 len=8
          RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added
          RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added
          State: DISCONNECTED -> SCANNING
          Starting AP scan (specific SSID)
...
and runs fine up to:
...

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_wext_set_key: alg=2 key_idx=0 set_tx=1 seq_len=6 key_len=32
                                                      State: 
4WAY_HANDSHAKE -> GROUP_HANDSHAKE
                                                      RX EAPOL from 
00:0f:3d:5e:b4:46
                                                      IEEE 802.1X RX: 
version=1 type=3 length=127
                                                        EAPOL-Key type=254
                                                          key_info 0x391 
(ver=1 keyidx=1 rsvd=0 Group Ack MIC Secure)
                                                            
key_length=32 key_data_length=32
                                                              
replay_counter - hexdump(len=8): 00 00 00 00 00 00 00 03
                                                                
key_nonce - hexdump(len=32): 00 37 87 9f 79 b3 3b e0 09 7a 4c 47 28 fd 
6f 19 da b8 d4 d8 9b
78 4c f6 d7 b7 ce 5e c3 87 36 5d
                                                                  key_iv 
- hexdump(len=16): a2 10 3e 87 d2 f3 39 d4 e4 6b 07 2b 0a b8 2e 70
                                                                    
key_rsc - hexdump(len=8): 00 00 00 00 00 00 00 00
                                                                      
key_id (reserved) - hexdump(len=8): 00 00 00 00 00 00 00 00
                                                                        
key_mic - hexdump(len=16): 9e 1c 5f 9f e8 85 70 ba a3 64 cd 2d cb 05 98 f9
                                                                        
State: GROUP_HANDSHAKE -> GROUP_HANDSHAKE
                                                                        
WPA: RX message 1 of Group Key Handshake from 00:0f:3d:5e:b4:46 (ver=1)
                                                                        
WPA: Group Key - hexdump(len=32): [REMOVED]
                                                                        
WPA: Installing GTK to the driver (keyidx=1 tx=0).
                                                                        
WPA: RSC - hexdump(len=6): 00 00 00 00 00 00
                                                                        
wpa_driver_wext_set_key: alg=2 key_idx=1 set_tx=0 seq_len=6 key_len=32
                                                                        
WPA: Sending EAPOL-Key 2/2
                                                                        
WPA: Key negotiation completed with 00:0f:3d:5e:b4:46 [PTK=TKIP GTK=TKIP]
                                                                        
Cancelling authentication timeout
                                                                        
State: GROUP_HANDSHAKE -> COMPLETED
                                                                        
CTRL-EVENT-CONNECTED - Connection to 00:0f:3d:5e:b4:46 completed (auth)
                                                                        
EAPOL: External notification - portValid=1
                                                                        
EAPOL: External notification - EAP success=1
                                                                        
EAPOL: SUPP_PAE entering state AUTHENTICATING
                                                                        
EAPOL: SUPP_BE entering state SUCCESS
                                                                        
EAP: EAP entering state DISABLED
                                                                        
EAPOL: SUPP_PAE entering state AUTHENTICATED
                                                                        
EAPOL: SUPP_BE entering state IDLE
                                                                        
EAPOL: startWhen --> 0


...
at which point i can get an ip address and all is fine, until suddenly I 
no longer have the network again.  The output at this point is:

...

RX EAPOL from 00:0f:3d:5e:b4:46
IEEE 802.1X RX: version=1 type=3 length=95
 EAPOL-Key type=254
 key_info 0x89 (ver=1 keyidx=0 rsvd=0 Pairwise Ack)
 key_length=32 key_data_length=0
 replay_counter - hexdump(len=8): 00 00 00 00 00 00 00 01
 key_nonce - hexdump(len=32): 44 e3 2d 64 01 23 f8 02 64 e6 21 6e d4 3e 
8b a1 d9 70 ce c5 20 62 75 a4 6b cc 62 03 10 a4 ac 69
 key_iv - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 key_rsc - hexdump(len=8): 00 00 00 00 00 00 00 00
 key_id (reserved) - hexdump(len=8): 00 00 00 00 00 00 00 00
 key_mic - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
WPA: EAPOL-Key Replay Counter did not increase - dropping packet
RX EAPOL from 00:0f:3d:5e:b4:46
IEEE 802.1X RX: version=1 type=3 length=95
 EAPOL-Key type=254
 key_info 0x89 (ver=1 keyidx=0 rsvd=0 Pairwise Ack)
 key_length=32 key_data_length=0
 replay_counter - hexdump(len=8): 00 00 00 00 00 00 00 02
 key_nonce - hexdump(len=32): 44 e3 2d 64 01 23 f8 02 64 e6 21 6e d4 3e 
8b a1 d9 70 ce c5 20 62 75 a4 6b cc 62 03 10 a4 ac 69
 key_iv - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 key_rsc - hexdump(len=8): 00 00 00 00 00 00 00 00
 key_id (reserved) - hexdump(len=8): 00 00 00 00 00 00 00 00
 key_mic - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
WPA: EAPOL-Key Replay Counter did not increase - dropping packet
RX EAPOL from 00:0f:3d:5e:b4:46
IEEE 802.1X RX: version=1 type=3 length=95
 EAPOL-Key type=254
 key_info 0x89 (ver=1 keyidx=0 rsvd=0 Pairwise Ack)
 key_length=32 key_data_length=0
 replay_counter - hexdump(len=8): 00 00 00 00 00 00 00 03
 key_nonce - hexdump(len=32): 44 e3 2d 64 01 23 f8 02 64 e6 21 6e d4 3e 
8b a1 d9 70 ce c5 20 62 75 a4 6b cc 62 03 10 a4 ac 69
 key_iv - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 key_rsc - hexdump(len=8): 00 00 00 00 00 00 00 00
 key_id (reserved) - hexdump(len=8): 00 00 00 00 00 00 00 00
 key_mic - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
WPA: EAPOL-Key Replay Counter did not increase - dropping packet
...

and then it just keeps going on like that.

Any suggestions for me?

Thanks,
Brian





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