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How can I determine the MAC address for a NIC in CentOS without using ifconfig?
Fresh7 days ago
Mar 15, 2026122384 viewsConfidence Score0%
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Problem
CentOS 5.5 One of my CenTOS systems recently booted with the following error: "Bringing up interface eth0: Device eth0 has difference MAC address than expected. ignoring." When I run ifconfig -a there's no entry for eth0 and I'm reasonably certain that the static HWADDR entry in /etc/sysconfig/netw…
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Fix for: How can I determine the MAC address for a NIC in CentOS without using ifconfig?
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if there is no entry in ... that means the device is not detected in the machine... (either due to missing driver support or bad/mis-identified hardware) check to confirm that "eth0" is detected by the system at all. You can also to list all devices…
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