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From: Jim Thompson <jim@netgate.com>
Date: Thu, 20 Oct 2005 05:00:19 -1000
To: "Andrew Atrens" <atrens@nortel.com>
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Cc: freebsd-current@freebsd.org, Jiri Mikulas <konfer@mikulas.com>,
	Andrew Thompson <thompsa@freebsd.org>
Subject: Re: ath client bridge
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On Oct 20, 2005, at 4:51 AM, Andrew Atrens wrote:

> Jim Thompson wrote:
>
>> On Oct 20, 2005, at 3:24 AM, Jim Thompson wrote:
>>  >     1                0          DA      BSSID       SA        X
>> more importantly, when a device "behind" the AP sends a packet  
>> for  and SA that is behind your "client bridge", how does the AP  
>> know  where to send the frame on the wireless medium?
>>
>
>
> Aha. I had SA confused with TA.  Please replace SA with TA on my  
> last response. :)
>
> The kludge I see my deliberant 'wireless' bridges use is some kind  
> of 'mac nat',
> so SA gets replaced by TA when the client bridges the packet out to  
> the AP.

You may want to wait for Sam's WDS code, which includes a really nice  
"client bridge" mode that doesn't involve the translation.