Re: [Pals] Spencer Dawkins' No Objection on draft-ietf-pals-ethernet-cw-06: (with COMMENT)

Hi, Stewart,

On Mon, Jul 2, 2018 at 6:02 AM Stewart Bryant <[email protected]>
wrote:

>
>
> On 20/06/2018 19:19, Spencer Dawkins wrote:
> > Spencer Dawkins has entered the following ballot position for
> > draft-ietf-pals-ethernet-cw-06: No Objection
> >
> > When responding, please keep the subject line intact and reply to all
> > email addresses included in the To and CC lines. (Feel free to cut this
> > introductory paragraph, however.)
> >
> >
> > Please refer to
> https://www.ietf.org/iesg/statement/discuss-criteria.html
> > for more information about IESG DISCUSS and COMMENT positions.
> >
> >
> > The document, along with other ballot positions, can be found here:
> > https://datatracker.ietf.org/doc/draft-ietf-pals-ethernet-cw/
> >
> >
> >
> > ----------------------------------------------------------------------
> > COMMENT:
> > ----------------------------------------------------------------------
> >
> > In this text,
> >
> >    This problem has recently become more serious for a number of
> >     reasons.  Firstly, due to the deployment of equipment with Ethernet
> >     MAC addresses that start with 0x4 or 0x6 assigned by the IEEE
> >     Registration Authority Committee (RAC).  Secondly, concerns over
> >     privacy have led to the use of MAC address randomization which
> >     assigns local MAC addresses randomly for privacy.  Random assignment
> >     results in addresses starting with one of these two values one time
> >     in eight.
> >
> > the problem caused by the second case is explained well, but the problem
> caused
> > by the first reason is not. Would it be correct to say
> >
> >    This problem has recently become more serious for a number of
> >     reasons.  Firstly, due to the deployment of equipment with Ethernet
> >     MAC addresses that start with 0x4 or 0x6 assigned by the IEEE
> >     Registration Authority Committee (RAC).
> >
> > Any addresses that start with either of these two values can be
> misidentified.
> >
> >     Secondly, concerns over
> >     privacy have led to the use of MAC address randomization which
> >     assigns local MAC addresses randomly for privacy.  Random assignment
> >     results in addresses starting with one of these two values one time
> >     in eight.
> >
> > ?
> >
> Spencer
>
> I have added a para that precedes the text that you are concerned about:
>
> IPv4 and IPv6 packets respectively start with the values 0x4 and 0x6.
> Misidentification can arise if an Ethernet PW
> packet without a CW is carrying an Ethernet packet with a destination
> address that starts either of these values.
>
> I think that this will provide a useful clarification to the reader as
> to what is happening.
>

Thanks, that looks perfect.

Spencer


> Best regards
>
> Stewart
>
>
>

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