[Techtalk] Multi-port NICs and iptables/ipchains?

[jennyw]

Just wondering if anyone has had any experience with multiport NICs and
Linux firewalls. I would like to build a mini-ITX box with a firewall
(probably IPCop or Smoothwall), but mini-ITX boards have only one PCI card.
They also have onboard Ethernet, but that's only two ports. One possibility
I've considered is USB Ethernet for the third port, but it would probably be
nicer to use a single card with multiple ports.

Anyone care to share experience? Or suggestions?

Thanks!

Jen