{SPAM?} Re: IPv6 Deployment for the LAN

Bernhard Schmidt berni at birkenwald.de
Sat Nov 7 06:15:52 CST 2009


Adrian Chadd <adrian at 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





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