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RFC 7050, "Discovery of the IPv6 Prefix Used for IPv6 Address Synthesis", November 2013

Source of RFC: behave (tsv)

Errata ID: 5152
Status: Reported
Type: Technical

Reported By: Mark Andrews
Date Reported: 2017-10-11

Section IANA Conside says:


It should say:


    ipv4only.arpa MUST be insecurely delegated.  This allows ISP's to
    modify / generate AAAA responses for ipv4only.arpa AAAA queries that
    will pass through unmodified caching servers as required by 8.1 (4).


The protocol as described does not work when there is a validating caching server in the resolution path.

IANA should have been instructed to insecurely delegate ipv4only.arpa. This allows ISP's to modify the
AAAA response without running foul of DNSSEC validation.

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