router installation?

[Magnus Ternström <magnus () hardsoft nu>]

Hi,
 
I'm thinking about giving the pig a try on my firewalls but i need to know
if snort supports
running on a linux router with multiple NIC's. One has 5 networks in
production enviroment.
 
Why im asking is that all the guides tell me to specify _one_ "home net"
with -h switch.
 
Any hints and ideas are welcome.
 
Kind regards,
Magnus - Snort newbie