diff --git a/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/codec/K8sNodeCodec.java b/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/codec/K8sNodeCodec.java
index 6676847..7c7b32b 100644
--- a/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/codec/K8sNodeCodec.java
+++ b/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/codec/K8sNodeCodec.java
@@ -44,6 +44,9 @@
     private static final String INTEGRATION_BRIDGE = "integrationBridge";
     private static final String EXTERNAL_BRIDGE = "externalBridge";
     private static final String STATE = "state";
+    private static final String EXTERNAL_INTF = "externalInterface";
+    private static final String EXTERNAL_BRIDGE_IP = "externalBridgeIp";
+    private static final String EXTERNAL_GATEWAY_IP = "externalGatewayIp";
 
     private static final String MISSING_MESSAGE = " is required in K8sNode";
 
@@ -69,6 +72,18 @@
             result.put(DATA_IP, node.dataIp().toString());
         }
 
+        if (node.extIntf() != null) {
+            result.put(EXTERNAL_INTF, node.extIntf());
+        }
+
+        if (node.extBridgeIp() != null) {
+            result.put(EXTERNAL_BRIDGE_IP, node.extBridgeIp().toString());
+        }
+
+        if (node.extGatewayIp() != null) {
+            result.put(EXTERNAL_GATEWAY_IP, node.extGatewayIp().toString());
+        }
+
         return result;
     }
 
@@ -105,6 +120,21 @@
             nodeBuilder.extBridge(DeviceId.deviceId(extBridgeJson.asText()));
         }
 
+        JsonNode extIntfJson = json.get(EXTERNAL_INTF);
+        if (extIntfJson != null) {
+            nodeBuilder.extIntf(extIntfJson.asText());
+        }
+
+        JsonNode extBridgeIpJson = json.get(EXTERNAL_BRIDGE_IP);
+        if (extBridgeIpJson != null) {
+            nodeBuilder.extBridgeIp(IpAddress.valueOf(extBridgeIpJson.asText()));
+        }
+
+        JsonNode extGatewayIpJson = json.get(EXTERNAL_GATEWAY_IP);
+        if (extGatewayIpJson != null) {
+            nodeBuilder.extGatewayIp(IpAddress.valueOf(extGatewayIpJson.asText()));
+        }
+
         log.trace("node is {}", nodeBuilder.build().toString());
 
         return nodeBuilder.build();