Link-local Multicast Name Resolution (LLMNR)
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: Internet Architecture Board <email@example.com>, RFC Editor <firstname.lastname@example.org>, dnsext mailing list <email@example.com>, dnsext chair <firstname.lastname@example.org> Subject: Document Action: 'Link-local Multicast Name Resolution (LLMNR)' to Informational RFC The IESG has approved the following document: - 'Link-local Multicast Name Resolution (LLMNR) ' <draft-ietf-dnsext-mdns-48.txt> as an Informational RFC This document is the product of the DNS Extensions Working Group. The IESG contact persons are Mark Townsley and Jari Arkko. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-dnsext-mdns-48.txt
Technical Summary The goal of Link-Local Multicast Name Resolution (LLMNR) is to enable name resolution in scenarios in which conventional DNS name resolution is not possible. LLMNR supports all current and future DNS formats, types and classes, while operating on a separate port from DNS, and with a distinct resolver cache. Since LLMNR only operates on the local link, it cannot be considered a substitute for DNS. Working Group Summary This document is a work item of the DNSEXT WG. In the early stages, there was a great deal of contention regarding which of two roughly equivalent mechanisms the WG would use as the basis of this work. Some disagreement persists about whether the WG made the best choice, given non-technical factors, such as market position. The WG now is asking that this document be published as Informational. More information on this may be found here: http://psg.com/lists/namedroppers/namedroppers.2006/msg00363.html Protocol Quality This document has been reviewed for the IESG by Margaret Wasserman and Mark Townsley. Note to RFC Editor OLD: [b] IPsec ESP with a null-transform MAY be used to authenticate unicast LLMNR queries and responses or LLMNR responses to multicast NEW: [b] IPsec ESP with a NULL encryption algorithm MAY be used to authenticate unicast LLMNR queries and responses or LLMNR responses to multicast IESG Note This document was originally intended for advancement as a Proposed Standard, but the IETF did not achieve consensus on the approach. The document has had significant review and input. At time of publication, early versions were implemented and deployed.