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Re: [dhcwg] draft-ietf-dhc-dhcpv6-opt-nisconfig-05.txt

Robert Elz <kre@munnari.OZ.AU> Wed, 11 February 2004 11:19 UTC

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From: Robert Elz <kre@munnari.OZ.AU>
To: Harald Tveit Alvestrand <harald@alvestrand.no>
cc: Bernie Volz <volz@metrocast.net>, 'Ted Lemon' <mellon@fugue.com>, dhcwg@ietf.org
Subject: Re: [dhcwg] draft-ietf-dhc-dhcpv6-opt-nisconfig-05.txt
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    Date:        Tue, 10 Feb 2004 08:10:23 -0800
    From:        Harald Tveit Alvestrand <harald@alvestrand.no>
    Message-ID:  <2015037.1076400623@localhost>

  | Apologies - just because I think you're wrong is no excuse for snapping at 
  | you.

No apologies needed, at least not for me - the message I replied to
wasn't directed (specifically) at me.   In any case, I didn't view your
comment as in any way objectionable, just farcical...

  | I still think you're wrong.

I fully understand your point of view.   And I certainly agree,
getting different config info from different sources is a problem,
and one that it would be nice to have a clean solution to.

But I don't think you can really expect DHCP to suddenly provide it,
or not in the context of the DHCPv6 NIS configuration option in
any case.

The problem is much broader than that - there are many more sources
of config info than just N interfaces each providing host config
information via DHCP.

Config info is also available via well known addresses (ie: SNTP could
be using the well known multicast address, instead of a particular server)
or via SLP, or perhaps even DNS SRV records, or ...

Any and all of that might conflict with any other of it.   What a host
should do in circumstances like those isn't easy to specify.

DHCP on the other hand has been as it is now since day 1 - it gets config
info about an interface, and throws in all kinds of host configuration
at the same time - naturally leading to (potentially) multiple different
configs being received.   DHCPv4 is like that, DHCPv6 isn't any different.
Altering that would be a major project, and NIS configuration just isn't
important enough to embark upon that!

kre

ps: I haven't read today's list traffic yet (the last message I saw
was my own - the one full of typos).


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