what about 48 bits?

Mon Apr 5 22:40:14 UTC 2010

----- "Valdis Kletnieks" <Valdis.Kletnieks at vt.edu> wrote:

> On Mon, 05 Apr 2010 17:26:53 EDT, "Patrick W. Gilmore" said:
> > I'm 3COM, I made ISA 10Base2 / 10Base5 cards in the 90s.  I run out
> of
> > MAC addresses.  Instead of going to get more - if I even can! - I
> > recycle those MAC addresses
> 
> There were several cases of production run errors from multiple
> vendors,
> where the MAC address went 14, 15, 16, 17, 17, 17, 17, *thwack*, 18,
> 19....

And to make the problem worse, they are likely to end up in the same shop, and you get them when you purchase several of them.