On Thu, 2010-10-28 at 00:47 -0700, "Lorna González" wrote:
> After trying to build two virtual interfaces, one as a STA and another one as 
> AP on mac80211 with an AR928X, creating a new interface with:
> 
> iw phy phy0 interface add wlan1 type __ap
> 
> I got a new interface called wlan1_rename, the one I used to build the AP 
> interface.

> But no other stations are able to see this Virtual AP and no more frames are 
> sent from the VAP. 

How did you set the MAC addresses on the interfaces? Based on a quick
test, I was able to get hostapd running on the interface created with
the command above at least when not changing the address on the created
interface. A station was able to see the AP and associate. Then I
changed the MAC address of the original interface by setting locally
administered bit (02:<rest of addr>) and I was able to associate it as a
station to an AP that was running on the same channel. The ping from the
virtual AP interface was still going through.

Just keep in mind that not all combinations will work as far as key
setup is concerned. In other words, you may be able to get associated
with multiple interfaces, but the data frames may not get through if the
driver is not yet ready to the setup you tested. These will be
eventually addressed for most cases, but for now, you may also want to
experiment with nohwcrypt=1 if you see something that could be caused by
this.

- Jouni


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