MAC addresses to use for BHyve VM's running under FreeBSD?

[George Neville-Neil]

On Feb 5, 2014, at 3:33 , Kai Gallasch <k at free.de> wrote:

> Am 05.02.2014 um 08:03 schrieb Craig Rodrigues:
>> Hi,
>> 
>> I am running many BHyve VM's and am using tap interfaces
>> with a single bridge.  I am configuring the IP addresses
>> of these VM's via DHCP.
>> 
>> I need to have separate MAC addresses for each VM.
>> 
>> Can anyone recommend a range of MAC addresses to use?
>> 
>> I seem to recall that at the 2013 FreeBSD Vendor Summit in
>> Sunnyvale, California, that George mentioned that
>> there might be a Organizational Unique Identifier (OUI) for the FreeBSD
>> project that we can use for BHyve VM's.  Is that right?
>> 
>> If not, can people recommend a range of addresses to use?
> 
> http://standards.ieee.org/develop/regauth/oui/public.html
> 
> Using "Search the Public MA-L Listing" with search term FreeBSD reveals..
> 
> --- snip ---
> 
> Here are the results of your search through the public section of the IEEE Standards OUI database report for freebsd:
> 
>  58-9C-FC   (hex)		FreeBSD
> Foundation
>  589CFC     (base 16)		
> FreeBSD
> Foundation
>  				P.O. Box 20247
> 				Boulder CO  80308-3247
> 				UNITED STATES
> --- snap ---
> 
> 

Correct, that is an address that the Foundation has registered with the IEEE.

If you look at sys/net/ieee_oui.h you will see that I’ve allocated a range to bhyve already.

Best,
George


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