I'm setting up a PC to do in-line packet sniffing on the network to monitor outbound bandwidth on the WAN link. The machine works fine as is; an XP box with 2 nics bridged (i.e. an IN and OUT port) and I can sniff all the traffic on it's way to the firewall to monitor bandwidth.
The problem is that when the PC is off or rebooting the XP software bridge isn't active so everyone looses internet connectivity. What I need is a dual port NIC that will failover to a bypass/bridge when there's no power (or better still no OS).
Preferably cheap and PCI, but could manage with PCI-X at a push.