ifconfig down and mac80211 issue

ifconfig down and mac80211 issue

[voncken]

Hi,

    I am currently trying to use rstp protocol (using rstpd ) over
wireless interfaces (ath9k) and I've noticed some strange hostapd
behaviour.

    Everything seems to work great with wired Ethernet devices.

    this is what I do : 
	- I have configured an AP (with hostapd), and it works perfectly
(beacons were sent)
    	- ifconfig wlanx down
	- ifconfig wlanx up

    after the ifconfig up, the wlanx does not send any beacons although
clients are perfectly able to associate with (WPA-SUPPLICANT does an
active scan).

    Have you ever encounter such issue ?

    Thanks in advance,

-- 
VONCKEN Cédric
ACKSYS R&D dept

Re: ifconfig down and mac80211 issue

[Johannes Berg]

On Mon, 2011-11-07 at 15:54 +0100, voncken wrote:
> Hi,
> 
>     I am currently trying to use rstp protocol (using rstpd ) over
> wireless interfaces (ath9k) and I've noticed some strange hostapd
> behaviour.
> 
>     Everything seems to work great with wired Ethernet devices.
> 
>     this is what I do : 
> 	- I have configured an AP (with hostapd), and it works perfectly
> (beacons were sent)
>     	- ifconfig wlanx down
> 	- ifconfig wlanx up
> 
>     after the ifconfig up, the wlanx does not send any beacons although
> clients are perfectly able to associate with (WPA-SUPPLICANT does an
> active scan).

You can't do that. If you set down everything is unconfigured. If you
need to take it down/up then you need to do that before you start
hostapd.

johannes