Prompt to restart the NIC:
Bringing up interface eth0:determining if IP address 10.109.67.81 are already in use for device eth0 ...
[OK]
Bringing up interface eth1:determining if IP address 10.109.67.83 are already in use for device eth1 ...
[OK]
This warning is usually caused by the network card parsing the ARP protocol, which can be masked by adding the Arpcheck=no parameter to the NIC's configuration file.
[Email protected] ~]# Cat/etc/sysconfig/network-scripts/ifcfg-eth0
Type=ethernet
Bootproto=none
ipaddr=10.109.67.81
Prefix=24
gateway=10.109.67.254
Defroute=yes
Ipv4_failure_fatal=yes
Ipv6init=no
Name=eth0
uuid=86d44060-4579-48cc-b85b-219a206ca37c
Onboot=yes
hwaddr=00:50:56:95:09:76
last_connect=1411004329
Arpcheck=no
Start the NIC again, everything is OK
[Email protected] ~]# service network restart
Shutting down interface eth0: [OK]
Shutting down interface eth1: [OK]
Shutting down loopback interface: [OK]
Bringing up loopback interface: [OK]
Bringing Up interface eth0: [OK]
Bringing Up interface eth1: [OK]
Bringing up interface eth0:determining if IP address 10.109.67.81 are already in use for device eth0 ...
