[AusNOG] Recommendation on Stable IPv6 Interface Identifiers

Mark Smith markzzzsmith at gmail.com
Tue Feb 28 07:28:52 EST 2017


A recently published IPv6 RFC that might be of interest. Using
link-layer addresses to automatically generate IPv6 Interface
Identifiers (IIDs) ("host addresses") isn't recommended any more.

"Recommendation on Stable IPv6 Interface Identifiers"


   This document changes the recommended default Interface Identifier
   (IID) generation scheme for cases where Stateless Address
   Autoconfiguration (SLAAC) is used to generate a stable IPv6 address.
   It recommends using the mechanism specified in RFC 7217 in such
   cases, and recommends against embedding stable link-layer addresses
   in IPv6 IIDs.  It formally updates RFC 2464, RFC 2467, RFC 2470, RFC
   2491, RFC 2492, RFC 2497, RFC 2590, RFC 3146, RFC 3572, RFC 4291, RFC
   4338, RFC 4391, RFC 5072, and RFC 5121.  This document does not
   change any existing recommendations concerning the use of temporary
   addresses as specified in RFC 4941."


More information about the AusNOG mailing list