From dba0525e5f8787235846d2bdb548d8ab60838233 Mon Sep 17 00:00:00 2001
From: Robert Lubos <Robert.Lubos@nordicsemi.no>
Date: Tue, 6 Dec 2016 18:02:26 +0100
Subject: [PATCH] Update route data in a child after parent migration. (#1044)

---
 src/core/thread/mle.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/core/thread/mle.cpp b/src/core/thread/mle.cpp
index edb6cf481..0ae1fd02c 100644
--- a/src/core/thread/mle.cpp
+++ b/src/core/thread/mle.cpp
@@ -2037,6 +2037,7 @@ ThreadError Mle::HandleAdvertisement(const Message &aMessage, const Ip6::Message
     Neighbor *neighbor;
     SourceAddressTlv sourceAddress;
     LeaderDataTlv leaderData;
+    RouteTlv route;
     uint8_t tlvs[] = {Tlv::kNetworkData};
 
     // Source Address
@@ -2075,6 +2076,15 @@ ThreadError Mle::HandleAdvertisement(const Message &aMessage, const Ip6::Message
              leaderData.GetLeaderRouterId() != GetLeaderId()))
         {
             SetLeaderData(leaderData.GetPartitionId(), leaderData.GetWeighting(), leaderData.GetLeaderRouterId());
+
+            if ((mDeviceMode & ModeTlv::kModeFFD) &&
+                (Tlv::GetTlv(aMessage, Tlv::kRoute, sizeof(route), route) == kThreadError_None) &&
+                route.IsValid())
+            {
+                // Overwrite Route Data
+                mMleRouter.ProcessRouteTlv(route);
+            }
+
             mRetrieveNewNetworkData = true;
         }