On Mon, 12 Apr 2004, Tony Hain wrote:
> Again,
> unless there is impact to a 3rd party, putting local use addresses in the
> global DNS is none of the IETF's business.

If you look at the case 1) below, that for certainty is a case which
would impact third parties.

> > -----Original Message-----
> > From: Pekka Savola [mailto:[EMAIL PROTECTED]
> > Sent: Friday, April 09, 2004 10:57 PM
> > To: Tony Hain
> > Cc: 'Dan Lanciani'; [EMAIL PROTECTED]
> > Subject: RE: Response to AD comments on draft-ietf-ipv6-unique-local-addr-
> > 03.txt
> > 
> > On Fri, 9 Apr 2004, Tony Hain wrote:
> > > I agree with Dan. Unless someone can show explicit harm to a third party
> > by
> > > putting them in the global DNS, there is no reason to even discuss their
> > > presence or absence in the global DNS.
> > 
> > I think there are two (operational -- can't be checked by the
> > implementation) cases here:
> > 
> >  1) putting in local addresses to global DNS names which are expected
> >     to be used by outsiders who are not interested of local
> >     addresses, or to whom local addresses could even mean a
> >     service degradation. (e.g., www.example.com, smtp.example.com,
> >     etc.etc.)
> > 
> >  2) putting in local addresses for names which are not expected to be
> >     used (e.g., "canada.vpn.example.com", to perform some kind of
> >     "auto-discovery" functions) except who know which hostnames those
> >     are and know what they're doing.
> > 
> > In the former, adding them makes very little sense.  In the latter,
> > adding them might be beneficial, while I'm not sure I can see the
> > scenario as I think one might want to use global addresses instead..
> > 
> > > > -----Original Message-----
> > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
> > Dan
> > > > Lanciani
> > > > Sent: Friday, April 09, 2004 1:16 PM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Re: Response to AD comments on draft-ietf-ipv6-unique-local-
> > addr-
> > > > 03.txt
> > > >
> > > > Kurt Erik Lindqvist <[EMAIL PROTECTED]> wrote:
> > > >
> > > > |> |=> At least you and I agree FWIW :)
> > > > |> |Perhaps I missed this discussion, but I can't see
> > > > |> |why they should be put in the global DNS.
> > > > |>
> > > > |> One might want to build an overlay network where consenting sites
> > know
> > > > |> how
> > > > |> to reach each other by constructing dynamic tunnels based on some
> > (yet
> > > > |> to
> > > > |> be defined) mapping function.  Thus the addresses may well be
> > > > |> reachable in
> > > > |> some sense.
> > > > |
> > > > |But is this reason enough to have them in the global DNS tree.
> > > >
> > > > Certainly.  If they are in the global DNS then the overlay network can
> > be
> > > > handled entirely by routers (or even stub hosts) that know how to look
> > up
> > > > the
> > > > mapping and create the tunnels.  This is the approach I intend to use
> > if
> > > > unique
> > > > addresses become a reality.  If the addresses are not allowed in the
> > > > global DNS
> > > > then multi-faced or multi-rooted DNS (or worse) hacks are required to
> > > > allow
> > > > applications to see the addresses in the first place.
> > > >
> > > > I strongly object to restricting unique addresses from the global DNS.
> > It
> > > > seriously compromises their utility and it does nothing to make
> > anyone's
> > > > life easier.  Applications must already deal with the case of
> > addresses
> > > > that
> > > > are not reachable because of filters.  There is no reason to single
> > these
> > > > addresses out for second-class treatment.
> > > >
> > > >                                 Dan Lanciani
> > > >                                 [EMAIL PROTECTED]
> > > >
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> > 
> > --
> > Pekka Savola                 "You each name yourselves king, yet the
> > Netcore Oy                    kingdom bleeds."
> > Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
> 
> 
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-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings


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