manually assigned mac address

[mlists]

I'm trying to work out how to configure a manually assigned mac address
onto an interface without much luck.

Does anyone know how ?

[Andrey Andreev]

Richard Worwood wrote:
> I'm trying to work out how to configure a manually assigned mac address
> onto an interface without much luck.
>
> Does anyone know how ?

Hi,

As root, do

ifconfig eth0 down
    ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
    ifconfig eth0 up

assuming that your NIC device is eth0, and substituting the xx:xx.. with 
the desired MAC address.

If that does thhe job for you, you might want to edit

/etc/sysconfig/network-scripts/ifcfg-eth0

and set it there (I think the parameter was called HWADDR, but I am away 
from a fedora box)

Greets,

//Andro

[mlists]

as I suspected the ifconfig hw ether statement works just fine,
unfortunately however when I specify a HWADDR within the config file it
just errors telling me that the mac specified doesn't match the one on
the card.

Does anyone know how to resolve this one ?

Thanks In Advance

Richard

On Thu, 2004-10-28 at 11:52 +0300, Andrey Andreev wrote:
> Richard Worwood wrote:
> > I'm trying to work out how to configure a manually assigned mac address
> > onto an interface without much luck.
> >
> > Does anyone know how ?
>
> Hi,
>
> As root, do
>
> ifconfig eth0 down
>    ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
>    ifconfig eth0 up
>
> assuming that your NIC device is eth0, and substituting the xx:xx.. with 
> the desired MAC address.
>
> If that does thhe job for you, you might want to edit
>
> /etc/sysconfig/network-scripts/ifcfg-eth0
>
> and set it there (I think the parameter was called HWADDR, but I am away 
> from a fedora box)
>
> Greets,
>
> //Andro
>
> -- 
> Andrey Andreev
> University of Helsinki
> Dept. of Computer Science

[Andrey Andreev]

Richard Worwood wrote:
> as I suspected the ifconfig hw ether statement works just fine,
> unfortunately however when I specify a HWADDR within the config file it
> just errors telling me that the mac specified doesn't match the one on
> the card.

As Chris Johnson wrote:

<quote>
In any case inspection of the ifup script and testing indicate that it 
is possible to do within the interface configurations.  Include the 
following directive in your /etc/sysconfig/network-scripts/ifcfg-ethX 
configuration file, substituting the desired mac address:
MACADDR=00:11:22:33:44:55
</quote>

Good luck,

Andro

PS: Please don't top post. It makes answering hard.

[Mike Burger]

On Thu, 28 Oct 2004, Richard Worwood wrote:
> I'm trying to work out how to configure a manually assigned mac address
> onto an interface without much luck.
>
> Does anyone know how ?

There are tools to do this, for which you could google, but, other than 
using this as an attempt to spoof your IP address, why would you want/need 
to do this?

[Christopher K. Johnson]

Mike Burger wrote:
> On Thu, 28 Oct 2004, Richard Worwood wrote:
> > I'm trying to work out how to configure a manually assigned mac address
> > onto an interface without much luck.
> >
> > Does anyone know how ?
>
> There are tools to do this, for which you could google, but, other than 
> using this as an attempt to spoof your IP address, why would you want/need 
> to do this?

I know this sort of thing can be useful for some failover mechanisms 
with active and hot spare servers, but you may be better off using 
clustering tools instead of home grown.

In any case inspection of the ifup script and testing indicate that it 
is possible to do within the interface configurations.  Include the 
following directive in your /etc/sysconfig/network-scripts/ifcfg-ethX 
configuration file, substituting the desired mac address:
MACADDR=00:11:22:33:44:55

Chris