On Thu, Sep 22, 2005 at 09:20:31AM +1000, Daniel Carosone wrote:
> 
> It's not presently possible.  It's something I've wished for in the
> past, too, in particular for cases where the set of interfaces in a
> bridge is subject to change.

I think it's a really bad idea.  It's about as bad a layering violation
as I can think of.  It's trivial to just add a tap interface if you
want to actually have one particular MAC address (and IP address, if
that's what you're after) on the bridge all the time.