Re: [Bridge] Hardware requirements for bridging wired+wireless together

[Simon Barber <simon@superduper.net>]

The problem is not the WiFi chipset - it's the IEEE802.11 standard. The 
standard does not allow for 'promiscuous mode' (not to be confused with 
monitor mode), nor does it require clients and access points to support 
4 address format frames which the bridge needs to work.

Simon

On 05/19/2010 02:08 PM, Umar Qureshey wrote:
>>> -----Original Message-----
>>> From: Simon Barber [mailto:simon@superduper.net]
>>> Sent: Wednesday, May 19, 2010 1:59 PM
>>> To: John W. Linville
>>> Cc: Umar Qureshey; bridge@lists.linux-foundation.org
>>> Subject: Re: [Bridge] Hardware requirements for bridging
> wired+wireless together
>>>
>>> I did write an ebtables module to work around this 802.11 3 address
>>> problem - it performed L2 NAT on DHCP, ARP and IP packets, so
> allowing
>>> an 802.11 client be added to a bridge. It was released under GPL
> about 5
>>> years ago (from my previous company Instant802/Devicescape), but I
> can't
>>> find the source anymore!!!
>>>
>>> Simon
>
> That would be very useful.  Probably even more useful now than 5 years
> ago!  Apparently, Windows does MAC-level NAT allowing for the bridging
> of Ethernet and WiFi interfaces irrespective of the underlying Wifi
> chipset.
>
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