> Is it possible to have 4 netcards running in monowall ?
> I have now 3 internal cards in the server, and I would like to add a USB
> netcard

(...)

> but my problem is that when I install a LevelOne USB Adapter, it is
> detected and
> I can add it
> in the web interface, but when I enable it the monowall cash.
>
> Anyone that can help ?
>

Short answer: forget USB ;-)

Try something like this one instead:
http://www.soekris.com/lan16x1.htm

-- Vincent