Re: ethtool documentation

Date: Wed Aug 07 2002 - 15:16:42 EST

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.


Ask not what your computer can do for you.  Ask what you can do for
  your computer.
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