[CentOS] Trying to override MAC addr
Robert Moskowitz
rgm at htt-consult.com
Thu Aug 21 14:25:45 UTC 2014
On 08/21/2014 10:15 AM, Reindl Harald wrote:
>
> Am 21.08.2014 um 16:09 schrieb Robert Moskowitz:
>> I am trying to override the mac addr. Now this is on an armv7 actually
>> running the F19 kernel and Redsleeve 6, but it SHOULD be standard
>> Centos6 ifcfg-eth0 content. Of course RSEL does not start with a
>> ifcfg-eth0 file, letting network services do all the work, so I am
>> starting from scratch, using the file from one of my C6 boxes with
>> static addressing. My file has in it:
>>
>> DEVICE="eth0"
>> BOOTPROTO=none
>> NM_CONTROLLED="no"
>> ONBOOT="yes"
>> TYPE="Ethernet"
>> NAME="System eth0"
>> DNS1=208.83.67.188
>> GATEWAY="208.83.67.177"
>> IPADDR="208.83.67.179"
>> HOSTNAME="rigel2.htt-consult.com"
>> IPV6INIT="yes"
>> MACADDR=02:67:15:00:01:79
>> MTU=1500
> that's easy - you need to tell it the physical too
> works from Fedora 10 up to Fedora 20 that way
>
> [root at srv-rhsoft:~]$ cat ifcfg-eth1
> DEVICE=eth1
> HWADDR=68:05:ca:0d:62:c1
> MACADDR=00:50:8d:b5:cc:de
>
> "00:50:8d:b5:cc:de" is the on my interface has after it is up
> "68:05:ca:0d:62:c1" is the pysical one of the device before fake it
OK. I ws going by:
http://www.centos.org/docs/5/html/Deployment_Guide-en-US/s1-networkscripts-interfaces.html
which says:
MACADDR=/<MAC-address>/
where /<MAC-address>/ is the hardware address of the Ethernet device
in the form /AA:BB:CC:DD:EE:FF/. This directive is used to assign a
MAC address to an interface, overriding the one assigned to the
physical NIC. This directive should *not* be used in conjunction
with HWADDR.
>
> [root at srv-rhsoft:~]$ ifconfig eth1
> eth1: flags=67<UP,BROADCAST,RUNNING> mtu 1500
> inet 62.178.103.85 netmask 255.255.255.0 broadcast 255.255.255.255
> ether 00:50:8d:b5:cc:de txqueuelen 500 (Ethernet)
> RX packets 74959980 bytes 25037014848 (23.3 GiB)
> RX errors 0 dropped 0 overruns 0 frame 0
> TX packets 67607627 bytes 39867204808 (37.1 GiB)
> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
> device interrupt 16 memory 0xf7cc0000-f7ce0000
>
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