Simon Kitching wrote:
On 09/04/2015 12:40 PM, Hazel Russman wrote:
It says: drivers: n180211 = Linux n180211/cfg80211 wext = Linux
wireless extensions (generic) wired = Wired Ethernet driver
* run "ps -ax | grep wpa_supp" and post that output too?
168 ? Ss 0:00 /sbin/wpa_supplicant=c
/etc/wpa_supplicant/wpa_supplicant-wlan0.conf -iwlan0
Thanks very much for your help.
I've finally figured out the cause: the nl80211 backend doesn't work
with a hidden SSID. The wext one does. Reconfiguring my router to
publish the SSID suddenly makes nl80211 work again.
I've contacted the wpa_supplicant list to see if this is expected
behaviour or a bug. Probably a bug, as it doesn't exit with an error
message but just fails to detect a network.
(and yes, I know that a non-published SSID can still be detected
reasonably easily with the right tools, ie doesn't add much to security).
Note that in the sysv version of BLFS the wpa service script has:
/sbin/wpa_supplicant -q -B -Dnl80211,wext ...
-- Bruce
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