Strange sniffer result for "iwconfig wlan0 channel" and "iwconfig wlan0 AP"
Mon Jul 18 02:44:03 PDT 2005
Today I got a strange sniffer result.the testbed as follows(APs and
terminal all is driven with hostap driver 0.3.7) :
AP 1 works channel 1 and its mac address is ap1_MAC; AP 2 works channel 6
and its mac address is ap2_mac; AP1 and AP2 serve the same ESSID "TEST".Sta
1 configure its ESSID as "TEST", Channel as any. After sta 1 is up, it will
associate with AP1, and works in channel1, then I run the command "iwconfig
wlan0 channel 6", strange result comes out:
The sta1 deauthenticates with the AP1, and begins to send probe request on
both channel 1 and channel 6 (maybe other channels), but then sometime it
will send out associate request on channel 6 with the ap2_mac ( I think
that is right), sometime it will sent out associate request with the
ap1_mac(of couse wrong, for ap1 works on channel 1), sometime it will send
out associate request on channel 1 with ap1_mac (then still associate with
After "iwconfig wlan0 channel 6", most time the sta1 still associates with
AP1 on channels, and only in very little case, it will associate with AP2
on channel 6.
Then I run "iwconfig wlan0 AP AP_mac", any message can't be catch by the
Any one can explain this to me? is it a bug for the driver? how can I
I will appreciate your any suggestion.
Thanks and Regards
???? MSN Explorer: http://explorer.msn.com/lccn/
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