There is some known misbehavior of DNS authoritative servers when
they are queried for AAAA resource records. Such behavior can block
IPv4 communication which should actually be available, cause a
significant delay in name resolution, or even make a denial of
service attack. This memo describes details of the known cases and
discusses the effect of the cases.
Working Group Summary
This document is a product of the dnsop working group.
David Kessens reviewed this document for the IESG.