Why does NetworkManager log "[nm-device-ethernet.c:504] real_update_permanent_hw_address(): (eth#): unable to read permanent MAC address (error 0)"?

Solution Unverified - Updated -

Issue

  • Why does NetworkManager log "[nm-device-ethernet.c:504] real_update_permanent_hw_address(): (eth#): unable to read permanent MAC address (error 0)"?

Sample log:

NetworkManager[1857]: <info> (eth0): carrier is ON
NetworkManager[1857]: <error> [1425958524.147987] [nm-device-ethernet.c:504] real_update_permanent_hw_address(): (eth0): unable to read permanent MAC address (error 0)
NetworkManager[1857]: <info> (eth0): new Ethernet device (driver: 'vmxnet3' ifindex: 2)

Environment

  • Red Hat Enterprise Linux 6
  • VMware Guest

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