zebra: freshen RFC references in rtadv
RFC2461 was replaced by RFC4861
RFC3775 was replaced by RFC6275
draft-ietf-mip6-mipext-advapi-03 was replaced by RFC4584
diff --git a/doc/ipv6.texi b/doc/ipv6.texi
index ff07dfb..de067e0 100644
--- a/doc/ipv6.texi
+++ b/doc/ipv6.texi
@@ -175,6 +175,6 @@
@end example
For more information see @cite{RFC2462 (IPv6 Stateless Address Autoconfiguration)}
-, @cite{RFC2461 (Neighbor Discovery for IP Version 6 (IPv6))}
-, @cite{RFC3775 (Mobility Support in IPv6 (Mobile IPv6))}
+, @cite{RFC4861 (Neighbor Discovery for IP Version 6 (IPv6))}
+, @cite{RFC6275 (Mobility Support in IPv6)}
and @cite{RFC4191 (Default Router Preferences and More-Specific Routes)}.