[freeside-users] freeside self service signup - passing a username?

[Dan Metcalf]

I am trying to setup a portal for a wifi hotspot using freeside, the NAS 
device sends the MAC address as the username, so I would like have them 
redirected to the signup page w/ the MAC address already provisioned as 
the username


is it possible state or provide a pre-defined username to the signup.cgi?

thanks

Dan