[CentOS] Trying to override MAC addr

[Digimer]

On 21/08/14 10:43 AM, Robert Moskowitz wrote:
>
> On 08/21/2014 10:32 AM, m.roth at 5-cent.us wrote:
>> Keith Keller wrote:
>>> On 2014-08-21, John R Pierce <pierce at hogranch.com> wrote:
>>>> On 8/21/2014 7:09 AM, Robert Moskowitz wrote:
>>>>> I am trying to override the mac addr.
>>>> pretty sure you need to use NIC model specific utilities to do this,
>>>> ifcfg-ethN won't do it.   the hwaddr= in there is for finding the nic,
>>>> not for reprogramming it.
>>> ifconfig claims to support it:
>>>
>>>          hw class address
>> <snip>
>> Also, don't forget /etc/udev/rules.d/70-persistant-net.rules
>
> I can't forget what I don't know.  please point me to description of
> these rules?

It's used to assign names to physical devices via udev. How it works 
depends a bit on your version.

It's discussed as part of these tutorials:

CentOS 6:
https://alteeve.ca/w/Changing_the_ethX_to_Ethernet_Device_Mapping_in_EL6_and_Fedora_12_to_14

CentOS 7:
https://alteeve.ca/w/Changing_Ethernet_Device_Names_in_EL7_and_Fedora_15%2B

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