Re: [CentOS] New firewall, need mac changed

On Sat, Apr 19, 2008 at 3:02 PM, Joseph L. Casale jcasale@activenetwerx.com wrote:

I have read a few ways to do this, but not 100% sure. I need the interfaces reliably associated to the hardware (there are more than one), so the ifcfg-ethn has the mac address in it. I need to match the mac address of an old router that is about to be removed so I need not change any dns related config.

Modify /etc/sysconfig/network-scripts/ifcfg-ethX and remove the HWADDR line if you have one, and add a MACADDR with the mac address you want to use.

Beware, some network cards may protest having the mac address changed, and using both HWADDR and MACADDR can cause issues. See /usr/share/doc/initscripts-*/sysconfig.txt for details.