From f38962a3c424ac07276eb2947128e508d0a275cc Mon Sep 17 00:00:00 2001
From: Ivan Delamer <delamer@inicotech.com>
Date: Wed, 7 Mar 2012 12:50:10 -0700
Subject: [PATCH] Do not remove infinite default routers when PROBE fails.

---
 core/net/uip-ds6.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/net/uip-ds6.c b/core/net/uip-ds6.c
index 1f54ca072..ad4f9ab9c 100644
--- a/core/net/uip-ds6.c
+++ b/core/net/uip-ds6.c
@@ -224,7 +224,9 @@ uip_ds6_periodic(void)
         if(locnbr->nscount >= UIP_ND6_MAX_UNICAST_SOLICIT) {
           PRINTF("PROBE END\n");
           if((locdefrt = uip_ds6_defrt_lookup(&locnbr->ipaddr)) != NULL) {
-            uip_ds6_defrt_rm(locdefrt);
+            if (!locdefrt->isinfinite) {
+              uip_ds6_defrt_rm(locdefrt);
+            }
           }
           uip_ds6_nbr_rm(locnbr);
         } else if(stimer_expired(&locnbr->sendns) && (uip_len == 0)) {