When I am trying to fake-authenticate to my WEP AP, aireplay-ng says it is successful, but when I check airodump-ng, my fake mac address is not listed in the clients list. Normally I would expect a MAC address filter, however my AP does not have a MAC filter. Moreover, why would aireplay tell me that fake authentication is successful?

I should also add that I use the infamous broadcom bcm43xx card and please do not tell me to buy an atheros card, because if I could find one in my country, i would have bought one.