Problem with station constantly disassociated/authenticated/associated

[mlist000]

Hi,

I am using hostapd version 0.6.3. (This same error occurs on 0.5.8.and 
0.5.10)

I have been using hostapd successfully for several years with various 
stations.

I have trouble connecting a Nokia N95 and Fujitsu Tablet st5112 (running 
Fedora 9 with Intel PRO/Wireless 3945ABG/3945BG).

In the example of the N95, I get repeated error messages "Too Short Data".

Also - when I enable more debug info it says:

Jul 16 20:09:20 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
authenticated
Jul 16 20:09:20 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
associated (aid 1, accounting session 487E393B-00000000)
Jul 16 20:09:20 fmac dhcpd: DHCPDISCOVER from 00:1d:e9:f8:8c:31 via wlan0
Jul 16 20:09:21 fmac dhcpd: DHCPOFFER on 172.30.131.45 to 
00:1d:e9:f8:8c:31 via wlan0
Jul 16 20:09:21 fmac dhcpd: DHCPREQUEST for 172.30.131.45 (172.30.131.1) 
from 00:1d:e9:f8:8c:31 via wlan0
Jul 16 20:09:21 fmac dhcpd: DHCPACK on 172.30.131.45 to 
00:1d:e9:f8:8c:31 via wlan0
Jul 16 20:09:21 fmac dhcpd: DHCPREQUEST for 172.30.131.45 (172.30.131.1) 
from 00:1d:e9:f8:8c:31 via wlan0
Jul 16 20:09:21 fmac dhcpd: DHCPACK on 172.30.131.45 to 
00:1d:e9:f8:8c:31 via wlan0
Jul 16 20:09:27 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
disassociated
Jul 16 20:09:27 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
authenticated
Jul 16 20:09:27 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
associated (aid 1, accounting session 487E393B-00000001)
Jul 16 20:09:28 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
disassociated
Jul 16 20:09:28 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
authenticated
Jul 16 20:09:28 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
associated (aid 1, accounting session 487E393B-00000002)
Jul 16 20:09:28 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
disassociated
Jul 16 20:09:28 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
authenticated
Jul 16 20:09:28 fmac hostapd: wlan0: STA 00:1d:e9:f8:8c:31 IEEE 802.11: 
associated (aid 1, accounting session 487E393B-00000003)
Jul 16 20:09:29 fmac hostapd: wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: 
disassociated
Jul 16 20:09:29 fmac hostapd: wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: 
authenticated
Jul 16 20:09:29 fmac hostapd: wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: 
associated (aid 1, accounting session 487E393B-00000004)
Jul 16 20:09:29 fmac hostapd: wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: 
disassociated
Jul 16 20:09:29 fmac hostapd: wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: 
authenticated
Jul 16 20:09:29 fmac hostapd: wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: 
associated (aid 1, accounting session 487E393B-00000005)
Jul 16 20:09:30 fmac hostapd: wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: 
disassociated
Jul 16 20:09:30 fmac hostapd: wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: 
authenticated



This constant association/disassociation continues repeatedly.

I added a few debug print statements which gave:




wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: authenticated
wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: associated (aid 1, accounting 
session 487E674D-00000000)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
Data Len is 18   ---   should be more than 18
Data Left is 0   ---   total len is 18 ----  802.11 hdr len is 18
Too short data frame
Data Left is 0   ---   should be more than rfc1042 hdr(6)
wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: disassociated
wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: authenticated
wlan0: STA 00:1d:e9:f7:8c:37 IEEE 802.11: associated (aid 1, accounting 
session 487E674D-00000001)

...



I have no trouble at the moment connecting Nokia N93 and E60. (Which are 
older phones).

The difference with the connections is that the N95 specifies 
listen_interval=20. (The other devices all specify listen_interval=10).

Could this be the problem ?

Does any one else have a similar problem ?

Thankyou.
Talei.