Last weeks I was performing some ARP spoof tests on my own network and I realized that if I tried spoofing my MAC address in the Ethernet Header. (for one packet only, I connected with a different MAC) that my messages didn't arrive on the destination anymore.
Since I was doing this on a WPA2 wireless connection, I had the impression that every connection on WPA2 gets mapped to a MAC address and that all other source MAC addresses are blocked.
Is this true? And if it is not, what else could it be that makes my packet not arrive? (I also monitored at the target end, and with my real MAC it received the package, with with a spoofed MAC it didn't.
It would be nice if someone had some references too!