changing the ifcg-

eth-id-{MAC address}

<interfaces config:type="list">
<interface>
<bootproto>static</bootproto>
<device>eth0</device>
<ipaddr>10.7.0.9</ipaddr>
<netmask>255.255.0.0</netmask>
<startmode>auto</startmode>
<usercontrol>no</usercontrol>
</interface>
</interfaces>