Couldn't you put him in a separate VLAN ??
This is how I am planning on how to do this (but didn't do it yet, I'm 
yet building a monowall at the office - currently just trialling at home)

Alex M schreef:
> Hey all I have bad user who eats tooooooooo much bandwidth (he downloaded
> like 50Gb in one day) I wanna cut his speed to 128kbps I think I can do that
> with mono + CP + radius (on the username basis), but I'm running PF Sense
> and they don't support this function (damn) is there any other way to limit
> that user speeds?
>
>  
>
> Thanks!
>
>
>