BCP for Private OUI / address assignments?

Peter Dambier peter at peter-dambier.de
Mon Nov 24 18:35:07 UTC 2008

I also found this one helpful


The CFxxxx Series

RFC 2153 describes a method of usings a "pseudo OUI" for certain
purposes when there is no appropriate regular OUI assigned.  These are
listed here.

CF0001  Data Comm for Business                                  [McCain]

I remember we had IBM Token-Ring equipment and they suggested
to always use "CF..." and never rely on the programmed MAC for SNA.

Kind regards

Dale W. Carder wrote:
> On Nov 24, 2008, at 11:02 AM, mike wrote:
>>  I am needing more and more unique mac addresses
> ...
>>  it occurs to me that there should be something - ala rfc 1918
> You can probably find examples online, but in a nutshell this
> does exist.
> Set bit b2 to 1, "locally assigned".
> Default is 0, "globally unique" (OUI assigned).
> Cheers,
> Dale
> -- 
> Dale W. Carder - Network Engineer
> University of Wisconsin / WiscNet
> http://net.doit.wisc.edu/~dwcarder

Peter and Karin Dambier
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