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Hello!<br>
I am having problems with my hostapd wireless AP and any help from you
people out there would be greatly appreciated! I have done my best to
explain the problem and copy and paste what I believe to be relevant
debug output.<br>
<br>
<b>THE PROBLEM</b><br>
I can connect to my wireless network with my laptop and everything works
fine, but after a while (<5 minutes) I get disconnected. When I try
to reconnect it does not work until I reboot the server/AP. It would
probably suffice to just kill the hostapd process correctly and then
restart it, but since I am new to the Linux world I don't know how.<br>
<br>
<b>THE SETUP</b><br>
Server/AP<br>
OS version: Ubuntu Server 10.04/Linux 2.6.31-21-generic-pae<br>
hostapd version: hostapd v0.6.9<br>
Wireless card model in AP: Atheros AR928X Wireless Network adapter<br>
Wireless driver: athk9 (came with my Ubuntu installation, I think)<br>
MAC-address Wireless card in AP: 00:22:43:66:21:4d<br>
<br>
Laptop/Client<br>
Wireless card model in laptop: Intel WiFi link 5300 AGN<br>
MAC-address Wireless card in laptop: 00:21:6a:92:1c:36<br>
<br>
Configuration file<br>
This is the output of my hostapd.conf: <b>sudo grep -v \#
/etc/hostapd/hostapd.conf | grep -v "^$"</b><br>
<br>
<b>interface=wlan0<br>
bridge=br0<br>
driver=nl80211<br>
logger_syslog=-1<br>
logger_syslog_level=2<br>
logger_stdout=-1<br>
logger_stdout_level=2<br>
dump_file=/tmp/hostapd.dump<br>
ctrl_interface=/var/run/hostapd<br>
ctrl_interface_group=0<br>
ssid=dalvik[dot]no[dash]ip[dot]org<br>
hw_mode=g<br>
channel=1<br>
beacon_int=100<br>
dtim_period=2<br>
max_num_sta=255<br>
rts_threshold=2347<br>
fragm_threshold=2346<br>
macaddr_acl=0<br>
auth_algs=1<br>
ignore_broadcast_ssid=0<br>
wme_enabled=1<br>
wme_ac_bk_cwmin=4<br>
wme_ac_bk_cwmax=10<br>
wme_ac_bk_aifs=7<br>
wme_ac_bk_txop_limit=0<br>
wme_ac_bk_acm=0<br>
wme_ac_be_aifs=3<br>
wme_ac_be_cwmin=4<br>
wme_ac_be_cwmax=10<br>
wme_ac_be_txop_limit=0<br>
wme_ac_be_acm=0<br>
wme_ac_vi_aifs=2<br>
wme_ac_vi_cwmin=3<br>
wme_ac_vi_cwmax=4<br>
wme_ac_vi_txop_limit=94<br>
wme_ac_vi_acm=0<br>
wme_ac_vo_aifs=2<br>
wme_ac_vo_cwmin=2<br>
wme_ac_vo_cwmax=3<br>
wme_ac_vo_txop_limit=47<br>
wme_ac_vo_acm=0<br>
ieee80211n=1<br>
eapol_key_index_workaround=0<br>
eap_server=0<br>
own_ip_addr=127.0.0.1<br>
wpa=2<br>
wpa_passphrase=password<br>
wpa_key_mgmt=WPA-PSK<br>
wpa_pairwise=TKIP<br>
rsn_pairwise=CCMP</b><br>
<br>
<br>
<b>INFO FROM DEBUG OUTPUT</b><br>
I run hostapd with the following command:<br>
<br>
<b>evilannanas@dalvik:~$ sudo hostapd -dd /etc/hostapd/hostapd.conf<br>
[sudo] password for evilannanas:</b><br>
<br>
<br>
hostapd starts and I get some debugging output:<br>
<br>
<br>
<b>Configuration file: /etc/hostapd/hostapd.conf<br>
ctrl_interface_group=0<br>
Opening raw packet socket for ifindex -1215979532<br>
BSS count 1, BSSID mask ff:ff:ff:ff:ff:ff (0 bits)<br>
SIOCGIWRANGE: WE(compiled)=22 WE(source)=21 enc_capa=0xf<br>
nl80211: Added 802.11b mode based on 802.11g information<br>
Allowed channel: mode=1 chan=1 freq=2412 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=2 freq=2417 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=3 freq=2422 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=4 freq=2427 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=5 freq=2432 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=6 freq=2437 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=7 freq=2442 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=8 freq=2447 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=9 freq=2452 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=10 freq=2457 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=1 chan=11 freq=2462 MHz max_tx_power=20 dBm<br>
Allowed channel: mode=0 chan=1 freq=2412 MHz max_tx_power=20 dBm<br>
....<br>
RATE[0] rate=10 flags=0x2<br>
RATE[1] rate=20 flags=0x6<br>
RATE[2] rate=55 flags=0x4<br>
RATE[3] rate=110 flags=0x4<br>
Passive scanning not supported<br>
Flushing old station entries<br>
Deauthenticate all stations<br>
Mode: IEEE 802.11b Channel: 1 Frequency: 2412 MHz<br>
Using interface wlan0 with hwaddr 00:22:43:66:21:4d and ssid
'dalvik[dot]no[dash]ip[dot]org'<br>
SSID - hexdump_ascii(len=29):<br>
64 61 6c 76 69 6b 5b 64 6f 74 5d 6e 6f 5b 64 61 dalvik[dot]no[da<br>
73 68 5d 69 70 5b 64 6f 74 5d 6f 72 67 sh]ip[dot]org<br>
PSK (ASCII passphrase) - hexdump_ascii(len=10):<br>
66 75 70 70 65 6c 6d 75 70 70 password<br>
PSK (from passphrase) - hexdump(len=32): 19 12 6b 2c 40 3a 05 1b 36 dd
ab 6d 76 30 0f 57 fb 87 85 ce 1a 32 65 0f 06 00 bc 9e 76 47 ad 72<br>
WPA: group state machine entering state GTK_INIT (VLAN-ID 0)<br>
GMK - hexdump(len=32): [REMOVED]<br>
GTK - hexdump(len=16): [REMOVED]<br>
WPA: group state machine entering state SETKEYSDONE (VLAN-ID 0)<br>
wlan0: Setup of interface done.<br>
</b><br>
<br>
Everything seems fine so far and I connect my laptop to the AP. It
generates the following output:<br>
<br>
<b>STA 00:21:6a:92:1c:36 sent probe request for broadcast SSID<br>
MGMT (TX callback) ACK<br>
mgmt::proberesp cb<br>
STA 00:21:6a:92:1c:36 sent probe request for our SSID<br>
STA 00:21:6a:92:1c:36 sent probe request for our SSID<br>
MGMT (TX callback) ACK<br>
mgmt::proberesp cb<br>
MGMT (TX callback) ACK<br>
mgmt::proberesp cb<br>
MGMT<br>
mgmt::auth<br>
authentication: STA=00:21:6a:92:1c:36 auth_alg=0 auth_transaction=1
status_code=0 wep=0<br>
New STA<br>
wlan0: STA 00:21:6a:92:1c:36 IEEE 802.11: authentication OK (open
system)<br>
wlan0: STA 00:21:6a:92:1c:36 MLME:
MLME-AUTHENTICATE.indication(00:21:6a:92:1c:36, OPEN_SYSTEM)<br>
wlan0: STA 00:21:6a:92:1c:36 MLME:
MLME-DELETEKEYS.request(00:21:6a:92:1c:36)<br>
authentication reply: STA=00:21:6a:92:1c:36 auth_alg=0
auth_transaction=2 resp=0 (IE len=0)<br>
MGMT (TX callback) ACK<br>
mgmt::auth cb<br>
wlan0: STA 00:21:6a:92:1c:36 IEEE 802.11: authenticated<br>
MGMT<br>
mgmt::assoc_req<br>
association request: STA=00:21:6a:92:1c:36 capab_info=0x411
listen_interval=10<br>
WME IE - hexdump(len=7): 00 50 f2 02 00 01 00<br>
Validating WME IE: OUI 00:50:f2 OUI type 2 OUI sub-type 0 version 1<br>
HT: STA 00:21:6a:92:1c:36 HT Capabilities Info: 0x0830<br>
handle_assoc STA 00:21:6a:92:1c:36 - 20 MHz HT, num of 20MHz HT STAs 1<br>
hostapd_ht_operation_update current operation mode=0x13<br>
hostapd_ht_operation_update new operation mode=0x13 changes=0<br>
new AID 2<br>
wlan0: STA 00:21:6a:92:1c:36 IEEE 802.11: association OK (aid 2)<br>
MGMT (TX callback) ACK<br>
mgmt::assoc_resp cb<br>
wlan0: STA 00:21:6a:92:1c:36 IEEE 802.11: associated (aid 2)<br>
wlan0: STA 00:21:6a:92:1c:36 MLME:
MLME-ASSOCIATE.indication(00:21:6a:92:1c:36)<br>
wlan0: STA 00:21:6a:92:1c:36 MLME:
MLME-DELETEKEYS.request(00:21:6a:92:1c:36)<br>
wlan0: STA 00:21:6a:92:1c:36 WPA: event 1 notification<br>
wlan0: STA 00:21:6a:92:1c:36 WPA: start authentication<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state INITIALIZE<br>
wlan0: STA 00:21:6a:92:1c:36 IEEE 802.1X: unauthorizing port<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK_GROUP entering state IDLE<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state AUTHENTICATION<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state AUTHENTICATION2<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state INITPSK<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state PTKSTART<br>
wlan0: STA 00:21:6a:92:1c:36 WPA: sending 1/4 msg of 4-Way Handshake<br>
WPA: Send EAPOL(version=2 secure=0 mic=0 ack=1 install=0 pairwise=8
kde_len=0 keyidx=0 encr=0)<br>
IEEE 802.1X: 00:21:6a:92:1c:36 TX status - version=2 type=3 length=95 -
ack=0<br>
wlan0: STA 00:21:6a:92:1c:36 IEEE 802.1X: did not Ack EAPOL-Key frame
(unicast index=79)<br>
wlan0: STA 00:21:6a:92:1c:36 WPA: EAPOL-Key timeout<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state PTKSTART<br>
wlan0: STA 00:21:6a:92:1c:36 WPA: sending 1/4 msg of 4-Way Handshake<br>
WPA: Send EAPOL(version=2 secure=0 mic=0 ack=1 install=0 pairwise=8
kde_len=0 keyidx=0 encr=0)<br>
IEEE 802.1X: 00:21:6a:92:1c:36 TX status - version=2 type=3 length=95 -
ack=1<br>
IEEE 802.1X: 123 bytes from 00:21:6a:92:1c:36<br>
IEEE 802.1X: version=1 type=3 length=119<br>
wlan0: STA 00:21:6a:92:1c:36 WPA: received EAPOL-Key frame (2/4
Pairwise)<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state PTKCALCNEGOTIATING<br>
WPA: PTK derivation - A1=00:22:43:66:21:4d A2=00:21:6a:92:1c:36<br>
WPA: PMK - hexdump(len=32): 19 12 6b 2c 40 3a 05 1b 36 dd ab 6d 76 30 0f
57 fb 87 85 ce 1a 32 65 0f 06 00 bc 9e 76 47 ad 72<br>
WPA: PTK - hexdump(len=64): ad d9 e6 8d b5 07 41 06 8b a0 dc 75 e5 ca 53
9f 72 dd b7 bc 11 8e 4b 26 39 f9 d0 09 c3 46 13 c1 89 13 e7 c9 50 a7 38
8f 96 ad ee 02 b2 f8 92 36 aa e0 ca 0a 1d da 14 18 52 48 2d 02 a6 7f ab
65<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state PTKCALCNEGOTIATING2<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state PTKINITNEGOTIATING<br>
wlan0: STA 00:21:6a:92:1c:36 WPA: sending 3/4 msg of 4-Way Handshake<br>
WPA: Send EAPOL(version=2 secure=1 mic=1 ack=1 install=1 pairwise=8
kde_len=46 keyidx=1 encr=1)<br>
Plaintext EAPOL-Key Key Data - hexdump(len=56): 30 14 01 00 00 0f ac 04
01 00 00 0f ac 04 01 00 00 0f ac 02 0c 00 dd 16 00 0f ac 01 01 00 96 ad
0c 20 bc 54 09 a7 fa bf 6d 81 e4 62 ac af dd 00 00 00 00 00 00 00 00 00<br>
IEEE 802.1X: 00:21:6a:92:1c:36 TX status - version=2 type=3 length=151 -
ack=1<br>
IEEE 802.1X: 99 bytes from 00:21:6a:92:1c:36<br>
IEEE 802.1X: version=1 type=3 length=95<br>
wlan0: STA 00:21:6a:92:1c:36 WPA: received EAPOL-Key frame (4/4
Pairwise)<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state PTKINITDONE<br>
wlan0: STA 00:21:6a:92:1c:36 IEEE 802.1X: authorizing port<br>
wlan0: STA 00:21:6a:92:1c:36 RADIUS: starting accounting session
4BEB0D8C-00000001<br>
wlan0: STA 00:21:6a:92:1c:36 WPA: pairwise key handshake completed (RSN)<br>
</b><br>
<br>
Everything works fine, I can connect to the WLAN/LAN and Internet. After
a short while, though, my laptop gets disconnected from the wireless
network and I am unable to reconnect unless I restart the server/AP
running hostapd. I get the following debug output on the AP/server
screen, I think it is related to my problem:<br>
<br>
<br>
<b>MGMT<br>
mgmt::action<br>
wlan0: STA 00:21:6a:92:1c:36 IEEE 802.11: handle_action - unknown action
category 7 or invalid frame<br>
IEEE 802.11: Return unknown Action frame back to sender<br>
MGMT (TX callback) ACK<br>
mgmt::action cb<br>
MGMT (TX callback) ACK<br>
mgmt::action cb<br>
MGMT (TX callback) ACK</b><br>
<br>
... and I also see this message in the log:<br>
<br>
<b>hostapd_wpa_auth_disconnect: WPA authenticator requests disconnect:
STA 00:21:6a:92:1c:36 reason 2<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK_GROUP entering state IDLE<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state DISCONNECTED<br>
WPA: 00:21:6a:92:1c:36 WPA_PTK entering state INITIALIZE<br>
wlan0: STA 00:21:6a:92:1c:36 IEEE 802.1X: unauthorizing port</b><br>
<br>
<br>
What does this mean (<b>"unknown action category 7 or invalid frame" /
"WPA authenticator requests disconnect: STA 00:21:6a:92:1c:36 reason 2" </b>?)
Why do I get disconnected, and why can't I reconnect without restarting
my AP? Is there anything wrong with my configuration? Thanks everyone!<br>
<br>
Regards,<br>
Gustav <br /><hr />Hotmail: Trusted email with Microsoft’s powerful SPAM protection. <a href='https://signup.live.com/signup.aspx?id=60969' target='_new'>Sign up now.</a></body>
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