Add references RFC3068 and RFC3964; mark draft-itojun-... as expired.

share/man/man4/stf.4

@@ -1,4 +1,4 @@
-.\"     $NetBSD: stf.4,v 1.22 2011/01/02 12:11:46 is Exp $
+.\"     $NetBSD: stf.4,v 1.23 2011/01/02 12:25:30 is Exp $
 .\"     $KAME: stf.4,v 1.39 2002/11/17 19:34:02 itojun Exp $
 .\"
 .\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -243,6 +243,13 @@ and not to use your 6to4 prefix as a source address.
 .%N 3056
 .Re
 .Rs
+.%A C. Huitema
+.%T "An Anycast Prefix for 6to4 Relay Routers"
+.%D June 2001
+.%R RFC
+.%N 3068
+.Re
+.Rs
 .%A F. Baker
 .%A P. Savola
 .%T "Ingress Filtering for Multihomed Networks"
@@ -251,11 +258,19 @@ and not to use your 6to4 prefix as a source address.
 .%N 3704
 .Re
 .Rs
+.%A P. Savola
+.%A C. Patel
+.%T "Security Considerations for 6to4"
+.%D December 2004
+.%R RFC
+.%N 3964
+.Re
+.Rs
 .%A Jun-ichiro itojun Hagino
 .%T "Possible abuse against IPv6 transition technologies"
 .%D July 2000
 .%N draft-itojun-ipv6-transition-abuse-01.txt
-.%O work in progress
+.%O expired, work in progress
 .Re
 .\"
 .Sh HISTORY