diff --git a/os/net/routing/rpl-lite/rpl-conf.h b/os/net/routing/rpl-lite/rpl-conf.h
index 8d2f4b7b9..9b8a12adb 100644
--- a/os/net/routing/rpl-lite/rpl-conf.h
+++ b/os/net/routing/rpl-lite/rpl-conf.h
@@ -191,6 +191,13 @@
 #define RPL_DEFAULT_LEAF_ONLY 0
 #endif
 
+/*
+ * Function used to validate dio before using it to init dag
+ */
+#ifdef RPL_CONF_VALIDATE_DIO_FUNC
+#define RPL_VALIDATE_DIO_FUNC RPL_CONF_VALIDATE_DIO_FUNC
+#endif
+
 /******************************************************************************/
 /********************************** Timing ************************************/
 /******************************************************************************/
diff --git a/os/net/routing/rpl-lite/rpl-dag.c b/os/net/routing/rpl-lite/rpl-dag.c
index 68d9e7aaa..09caa9625 100644
--- a/os/net/routing/rpl-lite/rpl-dag.c
+++ b/os/net/routing/rpl-lite/rpl-dag.c
@@ -61,6 +61,12 @@ static int init_dag_from_dio(rpl_dio_t *dio);
 /* Allocate instance table. */
 rpl_instance_t curr_instance;
 
+/*---------------------------------------------------------------------------*/
+
+#ifdef RPL_VALIDATE_DIO_FUNC
+int RPL_VALIDATE_DIO_FUNC(rpl_dio_t *dio);
+#endif /* RPL_PROBING_SELECT_FUNC */
+
 /*---------------------------------------------------------------------------*/
 const char *
 rpl_dag_state_to_str(enum rpl_dag_state state)
@@ -542,6 +548,13 @@ init_dag_from_dio(rpl_dio_t *dio)
 static int
 process_dio_init_dag(uip_ipaddr_t *from, rpl_dio_t *dio)
 {
+#ifdef RPL_VALIDATE_DIO_FUNC
+  if(!RPL_VALIDATE_DIO_FUNC(dio)) {
+    LOG_WARN("DIO validation failed\n");
+    return 0;
+  }
+#endif
+
   /* Check MOP */
   if(dio->mop != RPL_MOP_NO_DOWNWARD_ROUTES && dio->mop != RPL_MOP_NON_STORING) {
     LOG_WARN("ignoring DIO with an unsupported MOP: %d\n", dio->mop);