Securitng problem!

[erfan]

hi all
i have a little question!
we've setup a AP with wep shared key and i consumed that a hacker may have my wep !!
so we decided to limit the MAC address of the wireless cards !
is there any way that someone can fake this MACs or bypass this limitation anyway?
i read that if this limitation presents! with a tcpdump command it is possible to notice
this by getting deauth result, so i want to know can this limitation protect my AP?!

[fancy]

Nope, this will NOT protect your AP!!!!!!
And: never use WEP, use WPA2 with a long key......