[kea-dev] DUID-EN

Templin, Fred L Fred.L.Templin at boeing.com
Fri May 15 19:27:06 UTC 2015


Thanks Tomek - here is the ticket:

http://kea.isc.org/ticket/3874

Fred
fred.l.templin at boeing.com

> -----Original Message-----
> From: Tomek Mrugalski [mailto:tomasz at isc.org]
> Sent: Friday, May 15, 2015 11:56 AM
> To: Templin, Fred L; kea-dev at lists.isc.org
> Subject: Re: [kea-dev] DUID-EN
> 
> On 15.05.2015 17:42, Templin, Fred L wrote:
> >> Technically, it's not supported, but you can trivially add support for
> >> it. Start kea6 and stop it. It will store its generated DUID in
> >> ${install-dir}/var/kea/kea-dhcp6-serverid. This is the server DUID in
> >> hex form. Feel free to generate your own DUID and put it there. I'm not
> >> sure what your deployment model is, but you can even deploy kea with
> >> this file, so it will use whatever DUID you want from its first start.
> >
> > It sounds like something I could do, but seems a bit cumbersome. ISC dhcp
> > has a configuration file option for enabling DUID-EN, so there is no need to
> > carry along an ancillary serverid file.
> >
> >> This possibility is (somewhat briefly) discussed in Kea User's Guide,
> >> section 8.4. Would that work for you?
> >
> > OK, but it seems like just one more configuration file to keep track of
> > and increases the chance of misconfigurations. It would be far simpler
> > if there were a configuration option that could be added to the main
> > kea config file.
> I see your point. Personally, I don't consider DUID a configuration
> parameter in its classical sense. This is something that is supposed to
> be generated once and kept as is for the lifetime of the server. At
> least that's what was envisioned by RFC3315. I understand that there may
> be specific needs that warrant tweaking server's DUID, but in my opinion
> they are sufficiently uncommon that it is ok to make its edits cumbersome.
> 
> On the other hand, I would afraid that if we expose a configuration
> parameter, people may get confused and think that setting their DUID by
> hand is required.
> 
> Anyway, if those arguments doesn't convince you, please submit a ticket.
> I honestly admit that it likely won't be implemented in the next couple
> months, simply because we have lots of tickets planned already and this
> is not a common feature and there is a workaround that is relatively
> easy to apply. Nevertheless, hopefully we'll get round to this ticket
> one day.
> 
> Tomek



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