Johan Vermeulen wrote: > Dear all, > > I have a question regarding 2 network card setup, when e.g. using dhcp. > > Until a few months ago, I worked with OpenSuse. There in firewall > config, you had to assign each NIC to a zone, > either internal, external, DMZ or custom. > > Without it not much would work. > > I don't seen anything on CentOs in firewall config. > > So how does this work in CentOs? maybe start by reading this: http://lmgtfy.com/?q=iptables+%20site%3Aredhat.com&l=1