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2009-06-24 16:51:10
A WPA2/RSN network will have an RSN IE in the beacons and probe response
frames.
A WPA network will have a WPA IE in the beacons and probe responses.
A WEP network will have the "privacy" bit set in one of the IEs in the
beacons and probe responses, and will contain neither a WPA nor an RSN
IE. (WPA/WPA2 networks usually also have the "privacy" bit set, but
that may not be required by those standards. I'm not sure.)
