Followup: When we try to add the loopback driver in the network configuration menu (netconfig), we receive an error "no protocol stacks available on the system are suported on this device". The "ifconfig -a" command does not display any information. I tried to manually add the loopback using: ifconfig lo 127.0.01 and route add -host 127.0.0.1 lo, but it complains that ifconfig does not contain any data.