Support distributed virtual router (DVR) at kubernetes

Change-Id: I6dfa1ad0d2161443e37fa80901d5ababbec6f74e
diff --git a/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/Constants.java b/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/Constants.java
index c32f766..b6382d7 100644
--- a/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/Constants.java
+++ b/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/Constants.java
@@ -48,4 +48,6 @@
     public static final String DEFAULT_CONFIG_MODE = "NORMAL";
 
     public static final int DEFAULT_SEGMENT_ID = 100;
+    public static final String DEFAULT_EXTERNAL_GATEWAY_MAC = "fa:00:00:00:00:01";
+    public static final String DEFAULT_EXTERNAL_BRIDGE_MAC = "fa:00:00:00:00:02";
 }