--- /usr/src/linux/net/ipv6/addrconf.c~	2006-06-21 11:41:22.000000000 +0200
+++ /usr/src/linux/net/ipv6/addrconf.c	2006-06-21 15:33:26.000000000 +0200
@@ -862,6 +862,8 @@
   * 	2002::/16		2
   * 	::/96			3
   * 	::ffff:0:0/96		4
+  *	fc00::/7		5
+  * 	2001::/32		6
   */
 	if (type & IPV6_ADDR_LOOPBACK)
 		return 0;
@@ -871,6 +873,10 @@
 		return 4;
 	else if (addr->s6_addr16[0] == htons(0x2002))
 		return 2;
+	else if ((addr->s6_addr[0] & 0xfe) == 0xfc)
+		return 5;
+	else if (addr->s6_addr32[0] == htonl(0x20010000))
+		return 6;
 	return 1;
 }