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Re: [BEHAVE] Happy Eyeballs and DNS64 not sending synthetic AAAA RRs

"Stephan Lagerholm" <stephan.lagerholm@secure64.com> Fri, 05 August 2011 13:30 UTC

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From: Stephan Lagerholm <stephan.lagerholm@secure64.com>
To: Andrew Sullivan <ajs@anvilwalrusden.com>, behave@ietf.org
Subject: Re: [BEHAVE] Happy Eyeballs and DNS64 not sending synthetic AAAA RRs
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Andrew Sullivan Fri 8/5/2011 8:10 AM:
 
> On Thu, Aug 04, 2011 at 04:56:09PM -0700, Dan Wing wrote:
> > > The right thing to do is to have different policies for the
> different
> > > networks, potentially using views or other similar DNS mechanism.
> >
> > Can you write up how to accomplish that?
> 
> People might want to have a look at
> http://tools.ietf.org/html/draft-ietf-mif-dns-server-selection-03,
> which is full of bad ideas that are just slightly less bad than all
> the other alternatives.

Yes those two drafts should probably "merge" into one, however there is a
difference in what they want to accomplish.

mif-dns-server-selection assumes additional logic on the host to make an
intelligent decision on what DNS server to use when several are available.
wing-behave-dns64-config assumes that you only provision the appropriate DNS
server to each host so that they can't use the wrong server.

Something like wing-behave-dns64-config is needed until all hosts supports
mif-dns-server-selection.

/Stephan Lagerholm

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