On Wed, Aug 07, 2002 at 07:18:17AM -0400, Richard B. Johnson wrote:
>
> That capability is not permanent. If you let users write to the
> SEEPROM, permanently changing the IEEE Station Address, you have
> let users permanently break their network boards. I do protest
> when this capability is in the kernel.
Don't forget the old sun workstations that keep MAC addresses in
nvram, where it's setable via the boot prom. I had one with a bad
battery that I had to reset the MAC address on by hand if I unplugged
it for too long.
They DID implement a check to make sure the first few bits were
correct for the product, though. I couldn't pick completely random
MACs (though C0FFEE fit nicely at the end).
Given a working nvram, this change was "permanent", and the only tools
needed came with the system.
Erik
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This archive was generated by hypermail 2b29 : Wed Aug 07 2002 - 22:00:37 EST