On Mon, Sep 22, 2014 at 7:06 AM, Tony Finch <d...@dotat.at> wrote:
> The fun bit is that an auth server implementing some kind of proxying
> ANAME is in a position very like Google and OpenDNS. That is, if the
> target of the ANAME is a hostname provided by Akamai or CloudFlare or
> whoever, and if the auth server is going to proxy the answer faithfully,
> then it has to implement client-subnet.

I wonder if the best thing to do would be to define an ANAME/AAAANAME
that can be negotiated by resolvers. If the resolver supports it (it
can let the auth know via EDNS0) then the ANAME/AAAANAME is returned
without resolution. If the resolver doesn't support it, then a
synthetic A/AAAA can be returned.

-- 
Colm

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