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Re: [Add] draft-reddy-add-enterprise-split-dns, was Re: ADD Calls for WF Adoption

Michael Richardson <mcr+ietf@sandelman.ca> Mon, 18 October 2021 13:15 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: tirumal reddy <kondtir@gmail.com>
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Date: Mon, 18 Oct 2021 09:15:00 -0400
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Subject: Re: [Add] draft-reddy-add-enterprise-split-dns, was Re: ADD Calls for WF Adoption
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tirumal reddy <kondtir@gmail.com> wrote:
    >> I am not sure what to think about enterprise-split-dns.
    >>
    >> I guess if ADD is going to continue down the route of creating yet more
    >> ways
    >> to signal to the "stub" resolver that it needs more really complex policy,
    >> then this document is the way to do it.
    >>

    > The complexity comes from the fact that endpoints do not use
    > network-designated resolvers for various reasons and the endpoints
    > are unable to or properly resolve split-horizon DNS domains.

All the complexity goes away if endpoints have recursive resolvers, and
enterprises use restricted-view subdomains ("corp.example.com").
In that context, ADD is about finding a local secure "forwarders"

The problem we have is that IETF has never defined Split-Horizon DNS.
(AFAIK)

It's just happened.     Now, this document is proposing changes to an
architecture which was never previously well defined.


--
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide

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