After changing a client from using DHCP to using a static IP address using netcfg I had severe errors during the reboot concerning neighbourhood table overflow errors. Traced it down to being a badly configured loopback device. The file /etc/sysconfig/network-scripts/ifcfg-lo was found to be truncated. It looked like this: ONBOOT=yes whereas it should look like this: BOOTPROTO=none DEVICE=lo IPADDR=127.0.0.1 NETMASK=255.0.0.0 NETWORK=127.0.0.0 BROADCAST=127.255.255.255 ONBOOT=yes BOOTPROTO=none It appears that netcfg caused this file corruption.
I don't see how netcfg could have done that. If you can reproduce it, I'd like to see the steps you took to do it so that I can make an attempt to debug it here. Thanks.
Anyone who can reproduce this bug, please reopen this bug report with an explanation of how you did it. Thanks!