On 13 Jan 2010, at 20:01, Alex Bligh wrote:
An EDNS0 ignorant resolver MUST issue the priming query over UDP.
I presume you mean DNSSEC ignorant.
That's implicit. The language was in Olafur's original text BTW...
If a resolver doesn't speak EDNS0, it can't set the DO bit. Which
means the authoritative server isn't supposed to send back DNSSEC-
related RRs. Unless the resolver explicitly queries for those RRtypes.
Which seems unlikely, particularly in the context of a priming query.
It would be very odd for a DNS implementation to be DNSSEC-aware and
not support EDNS0. Then again, the DNS is full of all sorts of
weirdness and bizarre implementations.
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