7 Nov
2009
7 Nov
'09
7:15 a.m.
Adrian Chadd <adrian@creative.net.au> wrote:
As already said, wireless in infrastructure mode (with access points) always sends traffic between clients through the access point, so a decent AP can filter this. How does the client determine that the traffic came from the AP versus another client?
I'm not exactly a specialist for wireless, but as far as I remember my lectures the 802.11 has additional MAC fields for the wireless source/destination. Stations always send to the AP, the AP retransmits it to the station. IIRC WPA/WPA2 even has some protection against stations forging the AP MAC with the shared group key, but I don't remember any details. Bernhard