diff --git a/ospf6d/ospf6_asbr.h b/ospf6d/ospf6_asbr.h
new file mode 100644
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--- /dev/null
+++ b/ospf6d/ospf6_asbr.h
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2001 Yasuhiro Ohara
+ *
+ * This file is part of GNU Zebra.
+ *
+ * GNU Zebra is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * GNU Zebra is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Zebra; see the file COPYING.  If not, write to the 
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 
+ * Boston, MA 02111-1307, USA.  
+ */
+
+#ifndef OSPF6_ASBR_H
+#define OSPF6_ASBR_H
+
+#include "thread.h"
+
+struct ospf6_external_info
+{
+  int is_removed;
+  struct thread *thread_originate;
+
+  struct ospf6_external_route *route;
+
+  struct ospf6_external_info *prev;
+  struct ospf6_external_info *next;
+
+  /* external route type */
+  int type;
+
+  /* external route ifindex */
+  int ifindex;
+
+  /* LS-ID */
+  u_int32_t id;
+
+  /* nexthops */
+  u_int nexthop_num;
+  struct in6_addr *nexthop;
+
+  u_int8_t  prefix_options;
+
+  u_int8_t  metric_type;
+  u_int32_t metric;
+  struct in6_addr forwarding;
+  /* u_int32_t tag; */
+};
+
+struct ospf6_external_route
+{
+  struct route_node *node;
+
+  /* prefix */
+  struct prefix prefix;
+
+  /* external information */
+  struct ospf6_external_info *info_head;
+  struct ospf6_external_info *info_tail;
+};
+
+/* AS-External-LSA */
+struct ospf6_lsa_as_external
+{
+  u_int32_t bits_metric;
+
+  struct ospf6_prefix prefix;
+  /* followed by none or one forwarding address */
+  /* followed by none or one external route tag */
+  /* followed by none or one referenced LS-ID */
+};
+
+#define OSPF6_ASBR_BIT_T  ntohl (0x01000000)
+#define OSPF6_ASBR_BIT_F  ntohl (0x02000000)
+#define OSPF6_ASBR_BIT_E  ntohl (0x04000000)
+
+#define OSPF6_ASBR_METRIC(E) (ntohl ((E)->bits_metric & htonl (0x00ffffff)))
+#define OSPF6_ASBR_METRIC_SET(E,C) \
+  { (E)->bits_metric &= htonl (0xff000000); \
+    (E)->bits_metric |= htonl (0x00ffffff) & htonl (C); }
+
+void ospf6_asbr_routemap_update ();
+
+int ospf6_redistribute_config_write (struct vty *vty);
+void ospf6_redistribute_show_config (struct vty *vty);
+
+void
+ospf6_asbr_route_add (int type, int ifindex, struct prefix *prefix,
+                      u_int nexthop_num, struct in6_addr *nexthop);
+void
+ospf6_asbr_route_remove (int type, int ifindex, struct prefix *prefix);
+
+void ospf6_asbr_external_lsa_add (struct ospf6_lsa *lsa);
+void ospf6_asbr_external_lsa_remove (struct ospf6_lsa *lsa);
+void ospf6_asbr_external_lsa_change (struct ospf6_lsa *old,
+                                     struct ospf6_lsa *new);
+
+void ospf6_asbr_asbr_entry_add (struct ospf6_route_req *topo_entry);
+void ospf6_asbr_asbr_entry_remove (struct ospf6_route_req *topo_entry);
+
+void ospf6_asbr_init ();
+
+#endif /* OSPF6_ASBR_H */
+