In message <20150225154520.GD3297@xxxxxxxxxxxxxxx>, Andrew Sullivan writes: > On Mon, Feb 23, 2015 at 11:40:32AM +1100, Mark Andrews wrote: > > > them harder to use in the future. RFC 103[45] doesn't say what to > > do when the last reserved bit is used. Today we have queries > > dropped, FORMERR'd, REFUSED'd, NOTIMP'd, and ignored. I really > > don't care if the response is FORMERR, NOTIMP or ignored but we > > should choose one and stomp out the others so that when we decide > > to use the bit we don't have the mess [1] we had with the other > > bits. > > If that is something you want, this document is certainly not the > place to do it. That's a protocol specification change, and this > document is not altering the DNS protocol in any way. > > Best regards, Well reflecting back the bit isn't permitted and requiring that such queries get answered are parts of the existing specification which are not being followed. Requiring just these parts be correctly followed will make future deployment easier. As for the other see draft-andrews-no-response-issue. > A > > -- > Andrew Sullivan > ajs@xxxxxxxxxxxxxxxxxx -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@xxxxxxx