dueling MAC addresses

[deva0019]

I've got a dual boot machine (windoze and FC12). Don't ask why, let's just call it legacy.

The issue is that ipconfig and ifconfig are reporting different MAC addresses for eth0. Why?

The only easy way that I've found to get around this is to disable NetworkManager and add "MACADDR=XX:XX:etc." to ifcfg-eth0 script in fedora. I'd rather not disable NetworkManager on my laptop.

I've got licensed software that depends on the MAC address for licensing. I'll have to buy a new license to switch to fedora? Ugh!

Any ideas why the two OS's are reporting different MAC's?

[marko]

Have you tried using macchanger ?

yum install macchanger

[svan9420]

Do your NIC support multiple MAC Addresses? Some more feature rich NICS support this feature.

Can you do a lspci and send us the output.

[phosawyer]

id go with marko and use a mac changer to switch to the same as the license you're trying to use

[SiliconSlick]

Some cards (some of nvidia's IIRC) generate a new MAC on each boot. Is your MAC the same each time you boot Linux? If not, there was a way with hal/udev/dbus (forget which) to make it keep a constant MAC.

SS