Jerry,
I believe that by default the network is down and the "BOOTPROTO=dhcp" is not in the /etc/sysconfig/network-scripts/ifcfg-ethx. I encountered a similar issue on a KVM guest with minimal install
Earl
Was there something else missing also? I not added the BOOTPROTO="DHCP" and same issue happening. dmesg shows link up, service network restart shows OK and ifconfig shows no address.
jerry