<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Bernard,<div><br></div><div>another alternative would be for you to issue an informational RFC about interpretation of IDNA 2008 in light of DYN DNS, would it not?</div><div><br></div><div>v</div><div><br><div><div>On Oct 26, 2009, at 10:06 AM, Bernard Aboba wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div class="hmmessage" style="font-size: 10pt; font-family: Verdana; ">> Uh, yes. If dynamic update is configured to require that an<br>> RRSET (from the viewpoint of IDNA, a label) is already present,<br>> then one has a lookup situation. If it is configured for the<br>> "RRSET does not exist" or "Name not in use" cases, then one has<br>> a registration situation. That said, my personal recommendation<br>> would be to use the more conservative Registration rules any<br>> time one is going to start modifying DNS zones rather than<br>> simply looking something up. But the WG has not discussed this<br>> topic. If people are convinced that something must be said on<br>> the subject, we will need to have that discussion.<br><br>I do think that something needs to be said about this, since<br>the issue has come up in implementation. For example, based on<br>the distinction above, a client handling a dynamic update on<br>its own using TKEY would implement the lookup protocol,<br>whereas a DHCP server handling a dynamic update on behalf of<br>the client might implement the registration protocol.<br></div></span></blockquote></div><br></div></body></html>