Hi folks,
udev seems to create a problem here with the hostap (prism2) kernel
driver. Unlike many wifi devices, the hostap device driver always
creates paired interfaces, a raw interface (wifiX) and a network
interface (wlanX) that represents the configured network.
Unfortunately, udev (or hostap?) does not seem to be aware of this
linkage, and hence, if you have two wifi radios in your system, may
rename the second (wlanX) without the first (wifiX), and hence causing a
name mismatch between the two.
In general, this is not a problem, however, wpa_supplicant seems to
depend on the linkage of the names. Hence, if wifiX does not match
wlanX, wpa_supplicant will be unable to provide a WPA2 connection over a
hostap driven wifi connection.
Even worse, the complete procedure is completely untransparent to the
user, i.e. neither wpa_supplicant (nor network-manager, depending on
wpa_supplicant) nor network-manager provide a useful error message.
Any chance of fixing this problem? Is this "only" a configuration issue?
Is this an issue of hostap? Is this an issue of wpa_supplicant?
Either way, it took me several hours of figuring out what was wrong....
Greetings,
Thomsa
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