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>> He's doing it with a cable modem, there it's easy: cycle the power on both
>> the PC and the modem and you get a new MAC address stored in the modem.
No, the MAC address won't be changed by power-cycling the modem or PC. You
may get a new IP address, depending upon the ISP.
>> Otherwise the MAC address is stored in the network adapter (not the MoBo)
>> and it isn't that easy to change.
If the network interface is embedded in the motherboard, the MAC address
is there too.
>Are you sure? Normally the MAC address is fixed in hardware since the
>addresses have to be managed by the mfr to be globally unique and within the
>mfr's assigned range. The MAC address is documented on a label on the modem.
The MAC address is embedded in read-only memory, but that is only accessed
when the interface is initialized--the interface driver reads the MAC and
stores it in memory, where it can be changed. As long as you have local
administrative (or root) privileges, making the change is pretty trivial
on Windows, Unix, BSD, or Linux systems.
Most cable/DSL routers have the option of entering a MAC address or doing
a pass-through of the MAC from the computer.
Gary

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Gary Heston gheston@hiwaay.net I don't need an iPod, I have an IQ.
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