diff --git a/draft-nbourbaki-6man-classless-ipv6.xml b/draft-nbourbaki-6man-classless-ipv6.xml
index e7ae187..19b39d7 100644
--- a/draft-nbourbaki-6man-classless-ipv6.xml
+++ b/draft-nbourbaki-6man-classless-ipv6.xml
@@ -71,14 +71,23 @@
target="RFC2460"/>, IP Version 6 Addressing Architecture, see , and the proposed changes to , see .
-
+ target="I-D.hinden-6man-rfc4291bis"/>.
+
+
An important recent development in IPv6 is that for host
computers on local area networks, the way in which interface
identifiers are formed is no longer bound to layer 2 addresses (MAC
- addresses) . We can therefore appreciate
+ addresses) . We can therefore appreciate
that their length, previously fixed at 64 bits , is in fact a free parameter as stated in .