Re: IPv6 only host NAT64 requirements?

JORDI PALET MARTINEZ <jordi.palet@consulintel.es> Wed, 15 November 2017 07:57 UTC

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Date: Wed, 15 Nov 2017 15:57:27 +0800
Subject: Re: IPv6 only host NAT64 requirements?
From: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
To: <ipv6@ietf.org>
Message-ID: <8567DB0A-31E9-4D88-AA90-FE15F52639C5@consulintel.es>
Thread-Topic: IPv6 only host NAT64 requirements?
References: <6755862C-AA12-45B4-98B8-EF6D9F90898B@employees.org> <CAD6AjGRhn80LUJrut4ebDKPfFkdu3ySN8fjH_JvCjSNA-_tfYw@mail.gmail.com> <m1eEGlw-0000FsC@stereo.hq.phicoh.net>
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That tunneling technology is 464XLAT, depending on how you deploy it:

https://datatracker.ietf.org/doc/draft-palet-v6ops-464xlat-deployment/

Regards,
Jordi
 

-----Mensaje original-----
De: ipv6 <ipv6-bounces@ietf.org>; en nombre de Philip Homburg <pch-ipv6-ietf-4@u-1.phicoh.com>;
Responder a: <pch-ipv6-ietf-4@u-1.phicoh.com>;
Fecha: martes, 14 de noviembre de 2017, 6:11
Para: <ipv6@ietf.org>;
Asunto: Re: IPv6 only host NAT64 requirements?

    >I am not optimistic on the demand / need / value of dnssec in any scenario
    >....let alone an ipv6-only host validating an ipv4-only dns name. If the
    >folks operating this service cared, they could operate the server with
    >signed v6 names.  It is more reasonable in todays internet to asked the
    >server (lets assume most signed name scenarios are servers) to be setup
    >right (with v6). There is not a compelling reason why having v6 is
    >unattainable today for named nodes.
    
    DNSSEC is something that works today. Opinions are divided on what security
    it offers. Some people like it way more than the traditional CA system. 
    Other people believe that we should continue making random changes to the CA
    system in the hope that one day it will be secure.
    
    The problem for people who do local DNSSEC validation is that if neither the
    NAT64/DNS64 operator nor the operator of the target server cares about 
    DNSSEC/IPv6 then it just breaks.
    
    If all server operators cared, then there would be no need for NAT64/DNS64
    so the problem would not exist in the first place.
    
    If the NAT64/DNS64 operator cared, then they would offer be dual stack IPv4
    or a tunneling based transition technology that doesn't break DNSSEC.
    
    I guess the good news is that at least one group of people writing a local
    DNSSEC validating resolver (getdns) are aware of this issue and are adding
    code to handle this situation.
    
    
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