Recommendation on Stable IPv6 Interface Identifiers

The information below is for an old version of the document
Document Type None Internet-Draft (6man WG)
Last updated 2016-01-25
Stream IETF
Intended RFC status Proposed Standard
Expired & archived
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document changes the recommended default Interface Identifier generation scheme for SLAAC to that specified in RFC7217, and recommends against embedding link-layer addresses in IPv6 Interface Identifiers. It formally updates RFC2464, RFC2467, RFC2470, RFC2491, RFC2492, RFC2497, RFC2590, RFC3146, RFC3572, RFC4291, RFC4338, RFC4391, RFC5072, and RFC5121, which require IPv6 Interface Identifiers to be derived from the underlying link-layer address. Additionally, this document provides advice about the generation of Interface Identifiers with Dynamic Host Configuration Protocol version 6 (DHCPv6) (thus updating RFC3315) and manual configuration.


Fernando Gont (
Alissa Cooper (
Dave Thaler (
Will LIU (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)