Non-DFS channel

[sunder]

Thank very much  for precise clarification.
 
Best Regards,


k.sunder
 
> Date: Wed, 7 Oct 2015 23:14:42 +0300
> From: j at w1.fi
> To: sunder_k at hotmail.com
> CC: avinashapatil at gmail.com; hostap at lists.shmoo.com
> Subject: Re: Non-DFS channel
> 
> On Wed, Oct 07, 2015 at 06:18:13PM +0000, sunder wrote:
> >  Issue :
> > A 11ac card came up with wlan0.  Linux kernel 3.18 and ath10 were used.
> > The country code is set, say US. 
> >  
> > If 11ac card can find APs beaconing  in the channels 5180 MHz [36], 5200 MHz [40], 5220 MHz [44],  5240 MHz [48] during its scanning using iw tool.   The NO IR will get eliminated regulatory domain setting and it can start as 11ac AP with 80MHz.  
> >  
> >  Assume, an isolated area, where there is no AP with 5GHz near vicinity.  In that case, it cannot start the network.
> 
> Assuming this WLAN card has been provisioned for world roaming and not
> for a specific country (which is likely the case for station products),
> this behavior is correct and expected. No user action is supposed to
> allow it to set up an AP on a "no IR" channel without there being
> sufficient external information to allow the constraint to be lifted.
> 
> In any case, this is not really in scope for the hostap mailing list as
> this is a driver enforced constraint and something that seems to be
> there by design if I understood the card configuration correctly.
> 
> -- 
> Jouni Malinen                                            PGP id EFC895FA
 		 	   		  
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