Re: ath0 going haywire

2007-05-28 Thread Gunther Mayer

Ghirai wrote:

Hello Gunther,

Monday, May 28, 2007, 2:45:07 AM, you wrote:

  

Hi there,



  

My ath0 wireless interface is going crazy lately. In my logs the kernel
keeps telling me



  

May 28 01:26:28 greg ath0: link state changed to UP
May 28 01:26:28 greg ath0: link state changed to UP
May 28 01:26:28 greg ath0: link state changed to DOWN
May 28 01:26:28 greg ath0: link state changed to DOWN



  

while the wireless connection becomes completely useless. The first time
this happened was 5 days ago when I got these messages every couple of
minutes. Today it happened again but much worse than before: First 4 
such messages every 3 seconds, then later 15/sec!!! This kept going for

almost 2 hours while I tried to debug things over the wired interface,
but I had no luck until miraculously it stopped its madness and came 
back to normal 15 min ago. No other hints in /var/log/messages...



  

This this a sign of failing hardware? Or some other obscure bug in the
ath driver?



  

My signal is pretty solid at 25-30 S:N btw so it can't be that...




  

Gunther




Maybe someone is performing a deauth attack on your AP,
in hopes of getting your password?
  
Very unlikely since my wireless is actually unencrypted. Unless it's a 
DoS of course. How could I trace that? Tcpdump on the wireless interface 
on the ap shows nothing unusual.


My laptop associates 100% with the same ap btw, also the card is 
completely useless now and I have to string a cable through my whole 
house...


Gunther
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Re: ath0 going haywire

2007-05-27 Thread Ghirai
Hello Gunther,

Monday, May 28, 2007, 2:45:07 AM, you wrote:

 Hi there,

 My ath0 wireless interface is going crazy lately. In my logs the kernel
 keeps telling me

 May 28 01:26:28 greg ath0: link state changed to UP
 May 28 01:26:28 greg ath0: link state changed to UP
 May 28 01:26:28 greg ath0: link state changed to DOWN
 May 28 01:26:28 greg ath0: link state changed to DOWN

 while the wireless connection becomes completely useless. The first time
 this happened was 5 days ago when I got these messages every couple of
 minutes. Today it happened again but much worse than before: First 4 
 such messages every 3 seconds, then later 15/sec!!! This kept going for
 almost 2 hours while I tried to debug things over the wired interface,
 but I had no luck until miraculously it stopped its madness and came 
 back to normal 15 min ago. No other hints in /var/log/messages...

 This this a sign of failing hardware? Or some other obscure bug in the
 ath driver?

 My signal is pretty solid at 25-30 S:N btw so it can't be that...


 Gunther


Maybe someone is performing a deauth attack on your AP,
in hopes of getting your password?

-- 
Best regards,
Ghirai.

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