On Mon, 2007-12-31 at 12:39 +0700, Theewara Vorakosit wrote:
[...]
> I get MAC address from ioctl. However, ifconfig can change this  MAC 
> address. Can I get a real physical MAC address of the NIC?

- You can get the initial MAC address right after bootup before anyone
  changes it.
- Some (if not many if not all) of the drivers output it on
  driver initialization time so you could read it from `dmesg` or
  some /var/log/messages or .....
There is no "get initial MAC address" ioctl (but it's not that
complicated to implement it).

        Bernd
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