diff --git a/ospf6d/ospf6_zebra.h b/ospf6d/ospf6_zebra.h
index 05694d3..51eb9d7 100644
--- a/ospf6d/ospf6_zebra.h
+++ b/ospf6d/ospf6_zebra.h
@@ -23,6 +23,7 @@
 #define OSPF6_ZEBRA_H
 
 #include "zclient.h"
+#include "ospf6_top.h"
 
 /* Debug option */
 extern unsigned char conf_debug_ospf6_zebra;
@@ -35,6 +36,16 @@
 #define IS_OSPF6_DEBUG_ZEBRA(e) \
   (conf_debug_ospf6_zebra & OSPF6_DEBUG_ZEBRA_ ## e)
 
+/* OSPF6 distance */
+struct ospf6_distance
+{
+  /* Distance value for the IP source prefix */
+  u_char distance;
+
+  /* Name of the access-list to be matched */
+  char *access_list;
+};
+
 extern struct zclient *zclient;
 
 extern void ospf6_zebra_route_update_add (struct ospf6_route *request);
@@ -44,6 +55,15 @@
 extern void ospf6_zebra_no_redistribute (int);
 #define ospf6_zebra_is_redistribute(type) \
     vrf_bitmap_check (zclient->redist[type], VRF_DEFAULT)
+
+extern void ospf6_distance_reset (struct ospf6 *);
+extern u_char ospf6_distance_apply (struct ospf6_route *,
+                                    struct ospf6 *);
+extern int ospf6_distance_set (struct vty *, struct ospf6 *, const char *,
+                               const char *, const char *);
+extern int ospf6_distance_unset (struct vty *, struct ospf6 *, const char *,
+                                 const char *);
+
 extern void ospf6_zebra_init(struct thread_master *);
 
 extern int config_write_ospf6_debug_zebra (struct vty *vty);