From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <bb1951070503300225251fd4fe@mail.gmail.com>
Date: Wed, 30 Mar 2005 12:25:27 +0200
From: <fgergo@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
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Subject: [9fans] unique MAC address allocation?
Topicbox-Message-UUID: 2e31e2ee-ead0-11e9-9d60-3106f5b1d025

Not really plan9 specific, but
1. does anybody know if and how MAC addresses are allocated to network
card manufacturers?
2. do manufacturers guarantee the uniqueness of MAC addresses they build?
3. is it still true (was it ever true), that if I bought 2 NIC's,
they'll have different MAC addresses?
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?

 thanks: gergo