diff --git a/lib/controller.js b/lib/controller.js
index 9b0ce7175..dda7d2ef6 100644
--- a/lib/controller.js
+++ b/lib/controller.js
@@ -3,6 +3,7 @@ const Zigbee = require('./zigbee');
 const State = require('./state');
 const logger = require('./util/logger');
 const settings = require('./util/settings');
+const ExtensionNetworkMap = require('./extension/networkMap');
 const zigbeeShepherdConverters = require('zigbee-shepherd-converters');
 const homeassistant = require('./homeassistant');
 const objectAssignDeep = require(`object-assign-deep`);
@@ -94,6 +95,11 @@ class Controller {
             });
         }
 
+        // Initialize extensions.
+        this.extensions = [
+            new ExtensionNetworkMap(this.zigbee, this.mqtt, this.state),
+        ];
+
         // Resend all cached states.
         this.sendAllCachedStates();
     }
@@ -337,6 +343,12 @@ class Controller {
     handleMQTTMessage(topic, message) {
         logger.debug(`Recieved mqtt message on topic '${topic}' with data '${message}'`);
 
+        // Find extensions that could handle this.
+        const extensions = this.extensions.filter((e) => e.handleMQTTMessage);
+
+        // Call extensions.
+        const extensionResults = extensions.map((e) => e.handleMQTTMessage(topic, message));
+
         if (topic.match(mqttConfigRegex)) {
             this.handleMQTTMessageConfig(topic, message);
         } else if (topic.match(mqttDeviceRegex) || topic.match(mqttDevicePrefixRegex)) {
@@ -348,7 +360,7 @@ class Controller {
                     clearTimeout(timer);
                 }, 20000);
             }
-        } else {
+        } else if (!extensionResults.includes(true)) {
             logger.warn(`Cannot handle MQTT message with topic '${topic}' and message '${message}'`);
         }
     }
diff --git a/lib/extension/networkMap.js b/lib/extension/networkMap.js
new file mode 100644
index 000000000..cc1be59f3
--- /dev/null
+++ b/lib/extension/networkMap.js
@@ -0,0 +1,38 @@
+
+const settings = require('../util/settings');
+
+class NetworkMap {
+    constructor(zigbee, mqtt, state) {
+        this.zigbee = zigbee;
+        this.mqtt = mqtt;
+        this.state = state;
+
+        // Subscribe to topic.
+        this.topic = `${settings.get().mqtt.base_topic}/bridge/networkmap`;
+        this.mqtt.subscribe(this.topic);
+
+        // Set supported formats
+        this.supportedFormats = {
+            'raw': this.raw,
+        };
+    }
+
+    handleMQTTMessage(topic, message) {
+        message = message.toString();
+
+        if (topic === this.topic && this.supportedFormats.hasOwnProperty(message)) {
+            this.zigbee.networkScan((result)=> {
+                const converted = this.supportedFormats[message](result);
+                this.mqtt.publish(`bridge/networkmap/${message}`, converted, {});
+            });
+
+            return true;
+        }
+    }
+
+    raw(topology) {
+        return JSON.stringify(topology);
+    }
+}
+
+module.exports = NetworkMap;
diff --git a/lib/mqtt.js b/lib/mqtt.js
index fcbc21282..47133551e 100644
--- a/lib/mqtt.js
+++ b/lib/mqtt.js
@@ -70,7 +70,11 @@ class MQTT {
     handleConnect() {
         logger.info('Connected to MQTT server');
         this.publish('bridge/state', 'online', {retain: true, qos: 0});
-        this.subscriptions.forEach((topic) => this.client.subscribe(topic));
+        this.subscriptions.forEach((topic) => this.subscribe(topic));
+    }
+
+    subscribe(topic) {
+        this.client.subscribe(topic);
     }
 
     handleMessage(topic, message) {
diff --git a/lib/zigbee.js b/lib/zigbee.js
index f43366eec..6a813ebba 100644
--- a/lib/zigbee.js
+++ b/lib/zigbee.js
@@ -212,6 +212,14 @@ class Zigbee {
         device.read(cid, attr, callback);
     }
 
+    networkScan(callback) {
+        logger.info('Starting network scan...');
+        this.shepherd.lqiScan().then((result) => {
+            logger.info('Network scan completed');
+            callback(result);
+        });
+    }
+
     registerOnAfIncomingMsg(ieeeAddr, ep) {
         const device = this._findDevice(ieeeAddr, ep);
         device.onAfIncomingMsg = (message) => {