> I do see reference to /etc/sysconfig/network/ifcfg-*id-$LLADDR", but our > auto deploy scripts setup the etho as ifcfg-eth0 ...
Compare the MAC addresses on the actual interfaces. System-network-config (if this is RHEL) writes the MAC address of the device *at the time it's configured* into the interface definition files. Those will have changed on the new machine, and you'll see exactly this kind of behavior -- the interface definition files look at the MAC address to determine what interface data to use for a specific device. If nothing matches, no network.
