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Date:      Wed, 5 Feb 2014 06:31:56 -0500
From:      George Neville-Neil <gnn@freebsd.org>
To:        Kai Gallasch <k@free.de>
Cc:        "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org>
Subject:   Re: MAC addresses to use for BHyve VM's running under FreeBSD?
Message-ID:  <9BF7840E-03C2-47E4-A863-DE07FB1256F1@freebsd.org>
In-Reply-To: <5975C516-9590-4059-A094-96EDFF1420FC@free.de>
References:  <CAG=rPVcvoDhHW%2BWA1ooR=7d=rbTUhdT_aV5V1qqwCxpNYPiwJw@mail.gmail.com> <5975C516-9590-4059-A094-96EDFF1420FC@free.de>

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

> Am 05.02.2014 um 08:03 schrieb Craig Rodrigues:
>> Hi,
>>=20
>> 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.
>>=20
>> I need to have separate MAC addresses for each VM.
>>=20
>> Can anyone recommend a range of MAC addresses to use?
>>=20
>> 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?
>>=20
>> If not, can people recommend a range of addresses to use?
>=20
> http://standards.ieee.org/develop/regauth/oui/public.html
>=20
> Using "Search the Public MA-L Listing" with search term FreeBSD =
reveals..
>=20
> --- snip ---
>=20
> Here are the results of your search through the public section of the =
IEEE Standards OUI database report for freebsd:
>=20
>  58-9C-FC   (hex)		FreeBSD
> Foundation
>  589CFC     (base 16)	=09
> FreeBSD
> Foundation
>  				P.O. Box 20247
> 				Boulder CO  80308-3247
> 				UNITED STATES
> --- snap ---
>=20
>=20

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=92ve allocated a =
range to bhyve already.

Best,
George



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