On 4/25/07, Jerry Geis <geisj at pagestation.com> wrote: > > ifcfg-eth1 keeps changing to DHCP. All my static setup is gone. > > Why is it doing this? How can I stop it? I had exactly this problem with CentOS 4 on a machine that has 2 onboard NICs plus a third NIC on a card. Now if I can just remember what I did ... The problem (as I recall) is that on each reboot the onboard NICs are being discovered in a different order, so the MAC addresses in /etc/sysconfig/hwconf don't match what is recorded in /etc/sysconfig/network-scripts/ifcfg-eth*. I believe what I had to do (I should have written it down, damn it) was hand-edit /etc/sysconfig/hwconf to completely remove all the references to the NICs (there may be more than one entry for each NIC because of the flip-flopping), edit ifcfg-eth* to remove all references to HWADDR, reboot again to let the cards be rediscovered, and then again hand-edit ifcfg-eth* to insert HWADDR lines that match the device assignments in the regenerated /etc/sysconfig/hwconf. However, I may have at least the last step of that wrong.