Re: [dhcwg] DUID+IAID

"A. Gregory Rabil" <greg.rabil@jagornet.com> Fri, 30 March 2012 15:03 UTC

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Date: Fri, 30 Mar 2012 11:03:10 -0400
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From: "A. Gregory Rabil" <greg.rabil@jagornet.com>
To: Ted Lemon <Ted.Lemon@nominum.com>
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Cc: "dhcwg@ietf.org" <dhcwg@ietf.org>, Francis Dupont <Francis.Dupont@fdupont.fr>
Subject: Re: [dhcwg] DUID+IAID
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If I want to assign a specific address to the wired interface and a
separate, specific address to the wireless interface, how do I know what
the IAID will be for each of them?

On Fri, Mar 30, 2012 at 10:58 AM, Ted Lemon <Ted.Lemon@nominum.com> wrote:

> > In the case where a device only has one interface, then clearly only the
> DUID
> > is needed to provision it, or assign a specific address to it in the
> case of a
> > static-binding/reservation.  If devices have multiple interfaces, then
> the DUID
> > is not enough to uniquely reserve an address for each interface (wired
> and
> > wireless, for example).  In that case, you need the DUID+MAC.
>
> No, that's what IAID is for.   DUID+IAID provides a unique identifier that
> allows a client to configure multiple interfaces, or multiple network
> identities, using a consistent DUID.   MAC address is _not_ related to
> this.   At all.
>