Re: [BEHAVE] [DNSOP] New Version Notification for draft-momoka-v6ops-ipv6-only-resolver-00.txt

While we (ISC) have been working on this for years <https://gitlab.isc.org/isc-projects/bind9/-/merge_requests/2166>, this is yet another example of why DNS64 should be made historic.  This
is requesting even more support to work around problems introduced by DN64, a poorly thought out, supposedly short term hack.

It is NOT needed with 464XLAT, DS-Lite and other transition technologies where the IP stack maps
from IPv4 to IPv6 or the CPE maps from IPv4 to IPv6.

Additionally this is an indication the BCP91 is now out of date.  Best current practice has been
to operate dual stack servers for many years now.

Mark

> On 7 Oct 2022, at 16:12, Momoka Yamamoto <momoka.my6@gmail.com> wrote:
> 
> Hello,
> 
> I have submitted an informational draft that describes resolvers performing IPv4 to IPv6 translation to send queries to IPv4-only authoritative servers.
> We thought it would be beneficial to document that we can operate a resolver with only an IPv6 address if we utilize the NAT64. 
> Despite that it is stated in BCP91 [RFC3901], "every recursive name server SHOULD be either IPv4-only or dual stack."
> 
> Since this is more related to IPv6/IPv4 translation I have submitted the draft to the v6ops wg,
> but because this is DNS related I would very much appreciate it if I could have comments from the dnsop list as well.
> 
> Momoka. Y
> 
> ---------- Forwarded message ---------
> From: <internet-drafts@ietf.org>
> Date: Thu, Oct 6, 2022 at 2:17 AM
> Subject: New Version Notification for draft-momoka-v6ops-ipv6-only-resolver-00.txt
> To: Momoka Yamamoto <momoka.my6@gmail.com>, Toyota Yasunobu <yasnyan@sfc.wide.ad.jp>
> 
> 
> 
> A new version of I-D, draft-momoka-v6ops-ipv6-only-resolver-00.txt
> has been successfully submitted by Momoka Yamamoto and posted to the
> IETF repository.
> 
> Name:           draft-momoka-v6ops-ipv6-only-resolver
> Revision:       00
> Title:          IPv6 only iterative resolver utilising NAT64
> Document date:  2022-10-05
> Group:          Individual Submission
> Pages:          9
> URL:            https://www.ietf.org/archive/id/draft-momoka-v6ops-ipv6-only-resolver-00.txt
> Status:         https://datatracker.ietf.org/doc/draft-momoka-v6ops-ipv6-only-resolver/
> Html:           https://www.ietf.org/archive/id/draft-momoka-v6ops-ipv6-only-resolver-00.html
> Htmlized:       https://datatracker.ietf.org/doc/html/draft-momoka-v6ops-ipv6-only-resolver
> 
> 
> Abstract:
>    By performing IPv4 to IPv6 translation, IPv6-only iterative resolvers
>    can operate in an IPv6-only environment.  When a specific DNS zone is
>    only served by an IPv4-only authoritative server, the iterative
>    resolver will translate the IPv4 address to IPv6 to access the
>    authoritative server's IPv4 address via NAT64.  This mechanism allows
>    IPv6-only iterative resolvers to initiate communications to IPv4-only
>    authoritative servers.
> 
> 
> 
> 
> The IETF Secretariat
> 
> 
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> DNSOP@ietf.org
> https://www.ietf.org/mailman/listinfo/dnsop

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742              INTERNET: marka@isc.org