Do DNS resolvers choke if a question contains RRs in the additional section? Are they supposed to?
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Replying to @jedisct1
EDNS stuff goes into the additional section. See https://en.wikipedia.org/wiki/Extension_mechanisms_for_DNS …
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That states unknown OPT records should ignored. No mention of what to do with other resource records.
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A resolver that does not understand EDNS (or when a clients sends a non-OPT RR in ADDITIONAL) should send FORMERR though
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Mmm that would be annoying. Yes, do you have a reference for that?
2:45 AM - 2 Sep 2019
from Saint-Mandé, France
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