diff --git a/src/core/thread/mle_router.cpp b/src/core/thread/mle_router.cpp
index 694baea06..ed95dcb3e 100644
--- a/src/core/thread/mle_router.cpp
+++ b/src/core/thread/mle_router.cpp
@@ -1970,11 +1970,13 @@ ThreadError MleRouter::UpdateChildAddresses(const AddressRegistrationTlv &aTlv,
     Ip6::Address address;
     Lowpan::Context context;
     Child *child;
+    uint8_t count;
     uint8_t index;
+    char stringBuffer[Ip6::Address::kIp6AddressStringSize];
 
     aChild.ClearIp6Addresses();
 
-    for (uint8_t count = 0; count < Child::kMaxIp6AddressPerChild; count++)
+    for (count = 0; count < Child::kMaxIp6AddressPerChild; count++)
     {
         if ((entry = aTlv.GetAddressEntry(count)) == NULL)
         {
@@ -1995,6 +1997,9 @@ ThreadError MleRouter::UpdateChildAddresses(const AddressRegistrationTlv &aTlv,
 
         aChild.GetIp6Address(count) = address;
 
+        otLogInfoMle(GetInstance(), "Child 0x%04x IPv6 address[%d]=%s", aChild.GetRloc16(), count,
+                     address.ToString(stringBuffer, sizeof(stringBuffer)));
+
         // We check if the same address is in-use by another child, if so
         // remove it. This implements "last-in wins" duplicate address
         // resolution policy.
@@ -2021,6 +2026,18 @@ ThreadError MleRouter::UpdateChildAddresses(const AddressRegistrationTlv &aTlv,
         }
     }
 
+    if (count == 0)
+    {
+        otLogInfoMle(GetInstance(), "Child 0x%04x has no registered IPv6 address", aChild.GetRloc16());
+    }
+    else
+    {
+        otLogInfoMle(GetInstance(), "Child 0x%04x has %d registered IPv6 address%s", aChild.GetRloc16(), count,
+                     (count == 1) ? "" : "es");
+    }
+
+    (void)stringBuffer;
+
     return kThreadError_None;
 }