:: [DNG] Picking VM MAC addresses (was…
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Autor: Olaf Meeuwissen
Data:  
Para: Ralph Ronnquist
CC: dng
Tópicos Antigos: Re: [DNG] A way of holding telephone-conferences with DEVUAN?
Assunto: [DNG] Picking VM MAC addresses (was Re: A way of holding telephone-conferences with DEVUAN?)
Hi,

Ralph Ronnquist via Dng writes:

> [...]
> btw, the MAC address choice has some rules apart from needing to be different
> from any other MAC address your networking will get to know of. My rule of
> thumb is to start with 04, end with 2, and fill the middle "randomly", but keep
> the same MAC address allocated for its individual guest system, which I also
> keep documented in /home/share/dhcphosts.


If you pick MAC addresses for your VMs, just make sure they are locally
administered ones. See

https://en.wikipedia.org/wiki/MAC_address#Universal_vs._local

These have the second least significant bit of the first byte set to
one, so starting with 04 is NG. First byte values matching 0x#2, 0x#3,
0x#6, 0x#7, 0x#a, 0x#b, 0x#e and 0x#f, where # stands for an arbitrary
hexdigit, are fine.

Hope this helps,
--
Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
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