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Re: Link-local IPv6 addresses in the DNS

Brian E Carpenter <brian.e.carpenter@gmail.com> Wed, 23 November 2011 00:14 UTC

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Date: Wed, 23 Nov 2011 13:14:56 +1300
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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To: Kerry Lynn <kerlyn2001@gmail.com>
Subject: Re: Link-local IPv6 addresses in the DNS
References: <m1RStJG-0001jCC@stereo.hq.phicoh.net> <4ECC0BAB.4040401@gmail.com> <CABOxzu3Xd=0iXauAUCO0ZeqjwZah8_+OE3n_TuLhTNZpT9BoUw@mail.gmail.com> <CABOxzu1j=YUJ+ioS_VGzJvma__amyf74_RoSEuLc6qD6MXizLA@mail.gmail.com>
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Cc: 6man <ipv6@ietf.org>, Philip Homburg <pch-6man-1a@u-1.phicoh.com>, Mark Andrews <marka@isc.org>, Tomoyuki Sahara <sahara@surt.net>
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On 2011-11-23 11:09, Kerry Lynn wrote:
> On Tue, Nov 22, 2011 at 4:56 PM, Kerry Lynn <kerlyn2001@gmail.com> wrote:
> 
>> On Tue, Nov 22, 2011 at 3:52 PM, Brian E Carpenter <
>> brian.e.carpenter@gmail.com> wrote:
>>
>>> On 2011-11-23 05:34, Philip Homburg wrote:
>>>> In your letter dated Tue, 22 Nov 2011 14:30:03 +1100 you wrote:
>>>>> On a related issue to link locals in URI's, we don't currently have
>>>>> a good method of supporting link locals in the DNS.  Sure we can
>>>>> add them as AAAA records but they are essentially useless as the
>>>>> scope information is lost.  People keep saying use LL for disconnected
>>>>> but it just doesn't work without more support.
>>> Other people keep saying "use ULA for disconnected". The fact
>>> that you can put ULA into (er, local) DNS without any fancy
>>> stuff is a distinct advantage.
>>>
>>> IMHO link-local should be used only for bootstrapping a host and
>>> for diagnostic purposes. I guess I could statically configure a
>>> printer on fe00::a%1 if I really had no choice.
>>>
>>> BTW, I realized this whole conversation is probably re: local host files
> just after I hit the "send" button ;-)

Yes, I could put

fe80::a%1  printer1.local

in my hosts file I guess. Except that on my o/s, the zone ID is
not handled by the resolver at all, unsurprisingly.

   Brian

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