[Ns-developers] sta does not receive probe response (from wifi scanning patch)

ichrak amdouni ichrak.amdouni at gmail.com
Tue Feb 3 09:06:55 PST 2009


Hi all,
I am  using ns3.3 and I have adapted the wifi scanning patch (
http://code.nsnam.org/gjc/ns-3-wifi-scanning/rev/d84735b462a8) that Gustavo
provided for ns3.2 version.
In the scanning procedure, after switching from a channel to another,  the
station successfully sends probe requests, APs receive the probe and send
probe response, but  the station never receive the probe response from the
AP.
The issue  is that at the physical layer, station drops packet because
'already in Syn'.
Even if I use a unique channel for all nodes (but still calling
SetChannel()), I have always the same behavior.
If the station does not change the channel, it receives correctly the probe
response.
Does anyone has an explanation for this.
thank you in advance.


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