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To: Iljitsch van Beijnum <iljitsch@muada.com>
Cc: Tim Chown <tjc@ecs.soton.ac.uk>, dnsop@cafax.se
From: Mark.Andrews@isc.org
Date: Wed, 19 Nov 2003 11:34:13 +1100
In-reply-to: Your message of "Tue, 18 Nov 2003 23:35:19 BST." <7D10B7B4-1A17-11D8-B94E-000A95CD987A@muada.com>
Sender: owner-dnsop@cafax.se
Subject: Re: morishita-dnsop-misbehavior-against-aaaa


> On 18-nov-03, at 15:44, Tim Chown wrote:
> 
> >> On a similar note, we should include
> >> draft-ietf-dnsop-ipv6-dns-issues-02.txt to include more text to refer  
> >> to
> >> v6 DNS issues and operational guidelines (e.g. the draft above and  
> >> more)
> >> or create a new document.  I'll be thinking of new text in the coming
> >> days..
> 
> > Also good, especially since it has expired - the latest version can be
> > found here for info:
> > http://www.watersprings.org/pub/id/draft-ietf-dnsop-ipv6-dns-issues 
> > -02.txt
> 
> I don't see this problem:
> 
>    "it is also obvious that it is important to
>     avoid fragmenting the name space available to IPv4 only hosts. I.e.
>     during transition it is not acceptable to break the name space that
>     we presently have available for IPv4-only hosts."
> 
> If I run an IPv6-only service, why would IPv4-only systems need to be  
> able to resolve my DNS names?

	Because the IPv4 systems can then decide to use a proxy to
	connect to you.

	The caching nameserver doing the lookup may be IPv4 only
	but its clients may be IPv6 capable.

> Obviously some public health type warnings wouldn't be bad, but somehow  
> I suspect that people who might be inclined to run an IPv6-only  
> nameserver for IPv4-relevant domains won't be deterred much by words of  
> wisdom from the IETF.
> 
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--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews@isc.org
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