[Madwifi-devel] Multiple modes

[Carlos Guimarães]

Hi,

I've been looking for setting NIC to be able to monitor all traffic
received from the wireless network, in order to capture layer2 packets
without having to be associated with an AP or ad-hoc network.However,
most drivers do not support connecting to a network while in monitor
mode. And this is what I needed, i.e., be able to capture L2 packets and
also have connectivity with some network.

Since Madwifi drivers supports VAP, a simple way to support it was to
create a VAP for running in station mode and a VAP for running in
monitor mode correct? But this way would be limited to Atheros NICs correct?

Any other suggestions to do this?

Thanks,
Carlos

[Dennis Borgmann]

Hi Carlos!

Since you are asking on madwifi-list, which only is dedicated to
madwifi, I suppose the answer is - yes, you can do so only with Atheros
NICs. At least I know of no other card or respectively driver, that
supports multiple VAPs. If you know about another driver, you could of
course use that hardware as well. But then again, you would be limited
to that very card manufacturer.

The only other option I see is to attach two wireless NICs, one is
responsible for connection and datatransfer, the other operates on the
same channel an sniffs the traffic. But why doing so, if you can achieve
it with one card?

And apart from that, why don't you use the solution you mentioned with
madwifi, VAP and one NIC from Atheros? To me, it sounds good :-)

Regards,
Dennis

Post by Carlos Guimarães
Hi,
I've been looking for setting NIC to be able to monitor all traffic
received from the wireless network, in order to capture layer2 packets
without having to be associated with an AP or ad-hoc network.However,
most drivers do not support connecting to a network while in monitor
mode. And this is what I needed, i.e., be able to capture L2 packets and
also have connectivity with some network.
Since Madwifi drivers supports VAP, a simple way to support it was to
create a VAP for running in station mode and a VAP for running in
monitor mode correct? But this way would be limited to Atheros NICs correct?
Any other suggestions to do this?
Thanks,
Carlos
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