From 34119b7ef22cb2ed44ae54c889a2177678371ec0 Mon Sep 17 00:00:00 2001
From: Adam Dunkels <adam@thingsquare.com>
Date: Mon, 12 Aug 2013 00:07:13 +0200
Subject: [PATCH] Poor man's loop reparation: reset the DIO timer and hope the
 neighbor learns a better route.

---
 core/net/rpl/rpl-ext-header.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/net/rpl/rpl-ext-header.c b/core/net/rpl/rpl-ext-header.c
index 2bd0cb77c..3b7851c81 100644
--- a/core/net/rpl/rpl-ext-header.c
+++ b/core/net/rpl/rpl-ext-header.c
@@ -132,7 +132,9 @@ rpl_verify_header(int uip_ext_opt_offset)
     if(UIP_EXT_HDR_OPT_RPL_BUF->flags & RPL_HDR_OPT_RANK_ERR) {
       PRINTF("RPL: Rank error signalled in RPL option!\n");
       /* We should try to repair it, not implemented for the moment */
-      return 3;
+      rpl_reset_dio_timer(instance);
+      /* Forward the packet anyway. */
+      return 0;
     }
     PRINTF("RPL: Single error tolerated\n");
     UIP_EXT_HDR_OPT_RPL_BUF->flags |= RPL_HDR_OPT_RANK_ERR;