Paul Wouters wrote: > On Fri, 6 Mar 2015, Evan Hunt wrote: > >> (As an aside: I've often wondered why the DNS doesn't have *more* >> meta-query >> types, less extensive than ANY, such as a single type covering A and >> AAAA.
nothing prevents a server from answering A with AAAA as additional data, or answering AAAA with A as additional data. there can be no delegation point between rrtypes at a single node, so poisoning isn't to be feared. the RRSIGs for additional data can be included just as when A/AAAA additional data is included with MX, SRV, or NS. i'd like to see this done. it would not require an internet-draft, or if one existed, it would be an FYI nor STD. -- Paul Vixie
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