On Wed, 30 Mar 2005 12:25:27 +0200, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> 1. does anybody know if and how MAC addresses are allocated to network
> card manufacturers?
trere was some comitee that allocates to manufacturers different MAC prefixes.
> 2. do manufacturers guarantee the uniqueness of MAC addresses they build?
true
> 3. is it still true (was it ever true), that if I bought 2 NIC's,
> they'll have different MAC addresses?
true [ for not very old ethernet cards]
> 4. is it the responsibility of the OS to override the default MAC
> address if another card with the same (possibly overriden) MAC address
> was present on the LAN?
As far as i know, driver must allow this, and this process isn't automatic.
Only modern drivers allow MAC override [read: win32, nvidia nforce,
and wireless :-]

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