eth0      Link encap:Ethernet  HWaddr 00:1f:d0:08:a9:70
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:43 Base address:0x2000

Syslog:
Sep 14 09:43:48 agolba NetworkManager[723]: <info> (eth0): carrier is OFF
Sep 14 09:43:48 agolba NetworkManager[723]: <info> (eth0): new Ethernet device (driver: 'r8169' ifindex: 2)
Sep 14 09:43:48 agolba NetworkManager[723]: <info> (eth0): exported as /org/freedesktop/NetworkManager/Devices/0
Sep 14 09:43:48 agolba NetworkManager[723]: <info> (eth0): now managed
Sep 14 09:43:48 agolba NetworkManager[723]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Sep 14 09:43:48 agolba NetworkManager[723]: <info> (eth0): bringing up device.
Sep 14 09:43:48 agolba kernel: [   12.111414] r8169 0000:03:00.0: eth0: link down
Sep 14 09:43:48 agolba kernel: [   12.111422] r8169 0000:03:00.0: eth0: link down
Sep 14 09:43:48 agolba kernel: [   12.111992] ADDRCONF(NETDEV_UP): eth0: link is not ready
Sep 14 09:43:48 agolba NetworkManager[723]: <info> (eth0): preparing device.
Sep 14 09:43:48 agolba NetworkManager[723]: <info> (eth0): deactivating device (reason 'managed') [2]
Sep 14 09:43:48 agolba kernel: [   12.112755] **ADDRCONF(NETDEV_UP): eth0: link is not ready**