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
