Ok; then there is a driver issue , unless any hardware failure ?
I'll submit a ticket to the Madwifi project group.
Do you have any information about Madwifi and mini-pci Atheros cards ?
What may have cause such failure ?

(like unplugged antenna ?)

Thanks,
Mekabe

On Sat, Jul 11, 2009 at 11:01 PM, Tom Eastep<[email protected]> wrote:
> Mekabe Ramein wrote:
>> Shorewall dump is attached to this email.
>>
>> Thanks for any comments/suggestions.
>>
>> On Sat, Jul 11, 2009 at 10:44 PM, Mekabe Ramein<[email protected]> wrote:
>>> Hi,
>>>
>>> I am using Shorewall shell on my Linux router. Basically the router
>>> has 2 interfaces; ppp0 for wan , br0 for lan.
>>> Under br0 bridge interface I have ath0 (wifi atheros) and eth2 interfaces.
>>>
>>> I have no performance problem on the lan clients which are connected
>>> to eth2, but for the clients connected to ath0 wifi interface there is
>>> a big performance issue.
>>>
>>> When there is no traffic on wifi interface, the client can ping the
>>> router with 2ms response. But when the client starts any web browsing
>>> or any oher traffic, the ping responses from the router go above
>>> 1000ms or even 2000ms.
>>> Of course data communication from the wifi clients are terribly slow.
>>> The client seems to be connected with 54Mbps but it can't go even up to 
>>> 100kbps.
>>>
>>> It first seemed to be a trafffic shaping problem to me , so I moved
>>> all tcrules, tcclasses and tcdevices files and restarted without any
>>> traffic shaping. But that didn't solve the issue.
>>>
>>> How can I troubleshoot this ?
>>>
>>> Below is some information from my linux router. I will send the
>>> shorewall dump output in a seperate email.
>
> 4: wifi0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
> qlen 280
>    link/ieee802.11 00:80:48:4f:21:8d brd ff:ff:ff:ff:ff:ff
>    RX: bytes  packets  errors  dropped overrun mcast
>    1143084    8705     0       0       0       0
>    TX: bytes  packets  errors  dropped carrier collsns
>    7520750    13496    8274    0       0       0
>
> That is a horrible error rate. Looks to me like a hardware or driver issue.
>
> -Tom
> --
> Tom Eastep        \ When I die, I want to go like my Grandfather who
> Shoreline,         \ died peacefully in his sleep. Not screaming like
> Washington, USA     \ all of the passengers in his car
> http://shorewall.net \________________________________________________
>
>
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