diff --git a/rw_core/config/config.go b/rw_core/config/config.go
index 8b2c165..32b7abb 100644
--- a/rw_core/config/config.go
+++ b/rw_core/config/config.go
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package config
 
 import (
@@ -15,7 +30,7 @@
 	EtcdStoreName            = "etcd"
 	default_InstanceID       = "rwcore001"
 	default_GrpcPort         = 50057
-	default_GrpcHost         = "10.100.198.240"
+	default_GrpcHost         = "127.0.0.1"
 	default_KafkaAdapterHost = "10.100.198.240"
 	default_KafkaAdapterPort = 9092
 	default_KafkaClusterHost = "10.100.198.240"