Omen.com connects to the cable modem (static IP) with a PCI ethernet card. The motherboard gigabit ethernet runs the local network. Fedora provides NAT for the local network.
Fedora 11 configured this without too much fuss. Fedora 12 did not seem able to configure the two ports.
So I disabled the motherboard ethernet port, using the motheroard BIOS, and configured the PCI board for the internet connection. Then I enabled the motherboard port and was able to configure it for the local net. Set the firewall and all seems well.
Why is there a "network" and "network device control" menu entry instead of one?