I am trying to designate a MAC address for MS loopback adapter. Installation is fine. I see in device manager, the adapter and in advanced tab, I enter the mac address I desire. But when I do in cmd prompt ipconfig -all, I see the original mac address is retained.
I did search a bit but google is not extremely useful. I am hoping an easy solution exists to this problem. My os is XP.
thanks,
KD
Best Answer
It seems that the adapter will accept only locally administered MAC addresses as valid (makes sense). This is signified by 7th leftmost bit set to 1, so MAC must start with 02. I changed it without any problems:
If you try to define it as Globally unique (
00
), it treats it as invalid and reverts to default: