From: Stephen Hemminger <shemminger@vyatta.com>
To: rick.jones2@hp.com
Cc: netdev@vger.kernel.org
Subject: Re: [RFC] ethernet: avoid pre-assigned OUI values in random_ether_addr
Date: Fri, 13 May 2011 17:32:13 -0700 [thread overview]
Message-ID: <20110513173213.491c74a1@nehalam> (raw)
In-Reply-To: <1305332905.8149.705.camel@tardy>
On Fri, 13 May 2011 17:28:25 -0700
Rick Jones <rick.jones2@hp.com> wrote:
> On Fri, 2011-05-13 at 17:17 -0700, Stephen Hemminger wrote:
> > There are some addresses in the assigned vendor block that don't obey
> > the locally assigned convention. These should be avoided by random_ether_addr
> > assignment.
>
> How "recent" are these violations? Is there really a non-trivial chance
> of colliding? Much more than two or more stations in the same broadcast
> domain randomly picking the same random MAC anyway?
>
> At one level, avoiding using those OUIs seems to be a tacit approval of
> the violations.
These were assigned long ago in the early days of Ethernet.
It makes sense to me to avoid them as just good policy.
--
next prev parent reply other threads:[~2011-05-14 0:32 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-14 0:17 [RFC] ethernet: avoid pre-assigned OUI values in random_ether_addr Stephen Hemminger
2011-05-14 0:28 ` Rick Jones
2011-05-14 0:32 ` Stephen Hemminger [this message]
2011-05-14 0:44 ` Rick Jones
2011-05-14 1:00 ` Rick Jones
2011-05-14 6:28 ` Bill Fink
2011-05-16 14:29 ` Rick Jones
2011-05-15 19:46 ` Eric Dumazet
2011-05-15 20:20 ` Joe Perches
2011-05-15 21:10 ` Eric Dumazet
2011-05-16 15:46 ` Stephen Hemminger
2011-05-20 19:01 ` Stephen Hemminger
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