Index: sys/netinet6/nd6_nbr.c
===================================================================
--- sys/netinet6/nd6_nbr.c
+++ sys/netinet6/nd6_nbr.c
@@ -600,7 +600,7 @@
     const struct in6_addr *daddr6, const struct in6_addr *taddr6,uint8_t *nonce)
 {
 
-	nd6_ns_output_fib(ifp, saddr6, daddr6, taddr6, nonce, RT_DEFAULT_FIB);
+	nd6_ns_output_fib(ifp, saddr6, daddr6, taddr6, nonce, ifp->if_fib);
 }
 #endif
 /*