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Re: [lwip-users] Connect two machines running LWIP applications via WLAN

From: Sylvain Rochet
Subject: Re: [lwip-users] Connect two machines running LWIP applications via WLAN
Date: Tue, 4 Apr 2017 15:38:09 +0200
User-agent: Mutt/1.5.23 (2014-03-12)


On Tue, Apr 04, 2017 at 03:30:46PM +0200, Sylvain Rochet wrote:
> Hi,
> On Tue, Apr 04, 2017 at 03:12:09PM +0200, Dirk Ziegelmeier wrote:
> > I sent this link because of the first answer:
> > 
> > 
> > It is not possible to bridge between wireless (client a.k.a. station mode)
> > and wired interfaces according to this thread on linux-ath5k-devel
> > <http://web.archive.org/web/20110925231256/http://kerneltrap.org/mailarchive/linux-ath5k-devel/2010/3/21/6871733>
> > .
> > One should set up NAT instead:
> The master (access-point) of a wireless network must be aware of all 
> existing managed nodes, this is why you have to associate (and I hope 
> authenticate as well :-) ) your client. What you want to achieve with a 
> bridged wireless network is a wireless mesh network, which isn't 
> supported with basic equipments, and which is achieved using proprietary 
> protocols or with WDS for a very basic tree.
> Knowing that, it is obvious that it doesn't work. In other words, for 
> general cases, layer 1 domain and layer 2 domain must be the same for 
> wireless networks.

Erm, I have to add that master can be bridged to a wired network, since 
it is the central point, and this is the only way (without mesh, WDS, 
blabla.) to bridge a wireless network and therefore extend the layer 2 
domain over the wireless layer 1 domain. The bridge limitation only 
applies to managed nodes (client).


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