Meant to say UDEV...
Just went through this last night UUID is involved now this should help -
> https://alteeve.com/w/Changing_the_ethX_to_Ethernet_Device_Mapping_in_EL6
>
>
> On Thu, May 10, 2012 at 11:50 AM, Gregory P. Ennis <PoMec@xxxxxxxxx>wrote:
>
>> Everyone,
>>
>> Can anyone refer me to a tutorial as to how to rename the network cards,
>> ie I have one that ended up being system-eth3, that I want to be
>> system-eth1?
>>
>> I am setting up a new CentOS 6.2 system that I plan to use as a gateway
>> and e-mail server. The original machine had only one nic card, and to
>> my surprise the vendor did not have a 1000/100/10 card that would fit in
>> the pci-e slot. I ordered a pci-e network card, and while waiting for
>> it to arrive I purchased a Sabrent usb 1000/100/10 to finish my
>> development. I was able to get CentOS 6.2 to recognize the usb ethernet
>> adapter which had been assigned system-eth1, but I could not get data to
>> go through it (in or out).
>>
>> The pci-e network card came in, and after it was installed, and upon the
>> next boot it was assigned system-eth2. I tried to delete the usb eth1
>> and reassign the pci-e to eth1, but have managed to really mess things
>> up. I deleted references to eth1 and eth2 in :
>>
>> /etc/sysconfig/networking
>> /etc/sysconfig/network-scripts
>>
>> hoping that the next boot would reassign the pci-e network card as eth1,
>> but now the system will not even recognize the new card.
>>
>> Is there any way to reset the numbering sequences of network cards so
>> that I can have the the desired names. I wish now I would have left it
>> alone, and just changed references to eth1 to eth2 in my iptables
>> firewall.
>>
>> Thanks much,
>>
>> Greg Ennis
>>
>> _______________________________________________
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>> CentOS@xxxxxxxxxx
>> http://lists.centos.org/mailman/listinfo/centos
>>
>
>
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