ip masquerading with mac address filtering

[Christopher Lemire]

I pay for wifi usage. The access points are using mac address
filtering. I know this because I can spoof the mac of another computer
of mine and get it online. I'd like to get both the computer's online.
I've been trying to do ip masquerading. It hasn't been working so far.
I am not sure if the computer connected to mine through a cross over
cable is revealing its mac address to the access points when
communicating. If so, how does one get around this? ping shows
connectivity between the two computers.

-- 
Christopher Lemire <christopher.lemire at gmail.com>
Ubuntu 64 bit Linux Raid Level 0