diff --git a/MqttTopics.h b/MqttTopics.h
index d8d0470..78fc7a0 100644
--- a/MqttTopics.h
+++ b/MqttTopics.h
@@ -42,6 +42,7 @@
 #define mqtt_topic_info_firmware_version "/info/firmwareVersion"
 #define mqtt_topic_info_nuki_hub_version "/info/nukiHubVersion"
 #define mqtt_topic_info_nuki_hub_latest "/info/nukiHubLatest"
+#define mqtt_topic_info_nuki_hub_ip "/info/nukiHubIp"
 
 #define mqtt_topic_keypad "/keypad"
 #define mqtt_topic_keypad_command_action "/keypad/command/action"
diff --git a/Network.cpp b/Network.cpp
index cb9bfab..30a49fb 100644
--- a/Network.cpp
+++ b/Network.cpp
@@ -514,6 +514,7 @@ bool Network::reconnect()
             }
 
             publishString(_maintenancePathPrefix, mqtt_topic_mqtt_connection_state, "online");
+            publishString(_maintenancePathPrefix, mqtt_topic_info_nuki_hub_ip, _device->localIP().c_str());
 
             _mqttConnectionState = 2;
             for(const auto& callback : _reconnectedCallbacks)
@@ -752,6 +753,18 @@ void Network::publishHASSConfig(char* deviceType, const char* baseTopic, char* n
         json["dev"]["mf"] = "Nuki";
         json["dev"]["mdl"] = deviceType;
         json["dev"]["name"] = name;
+        
+        String cuUrl = _preferences->getString(preference_mqtt_hass_cu_url);
+
+        if (cuUrl != "")
+        {
+            json["dev"]["cu"] = cuUrl;
+        }
+        else
+        {
+            json["dev"]["cu"] = "http://" + _device->localIP();
+        }
+        
         json["~"] = baseTopic;
         json["name"] = nullptr;
         json["unique_id"] = String(uidString) + "_lock";
@@ -953,6 +966,23 @@ void Network::publishHASSConfig(char* deviceType, const char* baseTopic, char* n
                          { { "enabled_by_default", "true" },
                            {"ic", "mdi:counter"}});
 
+        // NUKI Hub IP Address
+        publishHassTopic("sensor",
+                         "nuki_hub_ip",
+                         uidString,
+                         "_nuki_hub_ip",
+                         "NUKI Hub IP",
+                         name,
+                         baseTopic,
+                         _lockPath + mqtt_topic_info_nuki_hub_ip,
+                         deviceType,
+                         "",
+                         "",
+                         "diagnostic",
+                         "",
+                         { { "enabled_by_default", "true" },
+                           {"ic", "mdi:ip"}});
+
         // LED enabled
         publishHassTopic("switch",
                          "led_enabled",
@@ -1427,6 +1457,12 @@ void Network::removeHASSConfig(char* uidString)
         path.concat(uidString);
         path.concat("/sound_level/config");
         _device->mqttPublish(path.c_str(), MQTT_QOS_LEVEL, true, "");
+        
+        path = discoveryTopic;
+        path.concat("/sensor/");
+        path.concat(uidString);
+        path.concat("/nuki_hub_ip/config");
+        _device->mqttPublish(path.c_str(), MQTT_QOS_LEVEL, true, "");
 
         path = discoveryTopic;
         path.concat("/number/");
diff --git a/PreferencesKeys.h b/PreferencesKeys.h
index b658772..13757d5 100644
--- a/PreferencesKeys.h
+++ b/PreferencesKeys.h
@@ -20,6 +20,7 @@
 #define preference_mqtt_crt "mqttcrt"
 #define preference_mqtt_key "mqttkey"
 #define preference_mqtt_hass_discovery "hassdiscovery"
+#define preference_mqtt_hass_cu_url "hassConfigUrl"
 #define preference_ip_dhcp_enabled "dhcpena"
 #define preference_ip_address "ipaddr"
 #define preference_ip_subnet "ipsub"
@@ -64,7 +65,7 @@ private:
             preference_mqtt_user, preference_mqtt_password, preference_mqtt_log_enabled, preference_lock_enabled,
             preference_mqtt_lock_path, preference_opener_enabled, preference_mqtt_opener_path,
             preference_lock_max_keypad_code_count, preference_opener_max_keypad_code_count, preference_mqtt_ca,
-            preference_mqtt_crt, preference_mqtt_key, preference_mqtt_hass_discovery,
+            preference_mqtt_crt, preference_mqtt_key, preference_mqtt_hass_discovery, preference_mqtt_hass_cu_url,
             preference_ip_dhcp_enabled, preference_ip_address, preference_ip_subnet, preference_ip_gateway, preference_ip_dns_server,
             preference_network_hardware, preference_network_wifi_fallback_disabled, preference_rssi_publish_interval,
             preference_hostname, preference_network_timeout, preference_restart_on_disconnect,
diff --git a/WebCfgServer.cpp b/WebCfgServer.cpp
index 9e0bb28..5918386 100644
--- a/WebCfgServer.cpp
+++ b/WebCfgServer.cpp
@@ -352,6 +352,11 @@ bool WebCfgServer::processArgs(String& message)
                 configChanged = true;
             }
         }
+        else if(key == "HASSCUURL")
+        {
+            _preferences->putString(preference_mqtt_hass_cu_url, value);
+            configChanged = true;
+        }        
         else if(key == "HOSTNAME")
         {
             _preferences->putString(preference_hostname, value);
@@ -771,6 +776,7 @@ void WebCfgServer::buildMqttConfigHtml(String &response)
     response.concat("<h3>Advanced MQTT and Network Configuration</h3>");
     response.concat("<table>");
     printInputField(response, "HASSDISCOVERY", "Home Assistant discovery topic (empty to disable; usually homeassistant)", _preferences->getString(preference_mqtt_hass_discovery).c_str(), 30);
+    printInputField(response, "HASSCUURL", "Home Assistant device configuration URL (empty to use http://LOCALIP; fill when using a reverse proxy for example)", _preferences->getString(preference_mqtt_hass_cu_url).c_str(), 261);
     printTextarea(response, "MQTTCA", "MQTT SSL CA Certificate (*, optional)", _preferences->getString(preference_mqtt_ca).c_str(), TLS_CA_MAX_SIZE, _network->encryptionSupported(), true);
     printTextarea(response, "MQTTCRT", "MQTT SSL Client Certificate (*, optional)", _preferences->getString(preference_mqtt_crt).c_str(), TLS_CERT_MAX_SIZE, _network->encryptionSupported(), true);
     printTextarea(response, "MQTTKEY", "MQTT SSL Client Key (*, optional)", _preferences->getString(preference_mqtt_key).c_str(), TLS_KEY_MAX_SIZE, _network->encryptionSupported(), true);
diff --git a/networkDevices/EthLan8720Device.cpp b/networkDevices/EthLan8720Device.cpp
index def7bc6..e511481 100644
--- a/networkDevices/EthLan8720Device.cpp
+++ b/networkDevices/EthLan8720Device.cpp
@@ -159,6 +159,11 @@ int8_t EthLan8720Device::signalStrength()
     return -1;
 }
 
+String EthLan8720Device::localIP()
+{
+    return ETH.localIP().toString();
+}
+
 void EthLan8720Device::mqttSetClientId(const char *clientId)
 {
     if(_useEncryption)
diff --git a/networkDevices/EthLan8720Device.h b/networkDevices/EthLan8720Device.h
index 1453e1b..ada4590 100644
--- a/networkDevices/EthLan8720Device.h
+++ b/networkDevices/EthLan8720Device.h
@@ -36,6 +36,8 @@ public:
     virtual bool isConnected();
 
     int8_t signalStrength() override;
+    
+    String localIP() override;
 
     void mqttSetClientId(const char *clientId) override;
 
diff --git a/networkDevices/NetworkDevice.h b/networkDevices/NetworkDevice.h
index a850696..b417b5f 100644
--- a/networkDevices/NetworkDevice.h
+++ b/networkDevices/NetworkDevice.h
@@ -31,6 +31,8 @@ public:
 
     virtual bool isConnected() = 0;
     virtual int8_t signalStrength() = 0;
+    
+    virtual String localIP() = 0;
 
     virtual void mqttSetClientId(const char* clientId) = 0;
     virtual void mqttSetCleanSession(bool cleanSession) = 0;
diff --git a/networkDevices/W5500Device.cpp b/networkDevices/W5500Device.cpp
index e66b6bd..0b3045d 100644
--- a/networkDevices/W5500Device.cpp
+++ b/networkDevices/W5500Device.cpp
@@ -229,6 +229,11 @@ int8_t W5500Device::signalStrength()
     return 127;
 }
 
+String W5500Device::localIP()
+{
+    return Ethernet.localIP().toString();
+}
+
 void W5500Device::mqttSetClientId(const char *clientId)
 {
     _mqttClient.setClientId(clientId);
diff --git a/networkDevices/W5500Device.h b/networkDevices/W5500Device.h
index ca909eb..e77d3c9 100644
--- a/networkDevices/W5500Device.h
+++ b/networkDevices/W5500Device.h
@@ -32,6 +32,8 @@ public:
     virtual bool isConnected();
 
     int8_t signalStrength() override;
+    
+    String localIP() override;
 
     void mqttSetClientId(const char *clientId) override;
 
diff --git a/networkDevices/WifiDevice.cpp b/networkDevices/WifiDevice.cpp
index a90ff82..b36606d 100644
--- a/networkDevices/WifiDevice.cpp
+++ b/networkDevices/WifiDevice.cpp
@@ -180,6 +180,11 @@ int8_t WifiDevice::signalStrength()
     return WiFi.RSSI();
 }
 
+String WifiDevice::localIP()
+{
+    return WiFi.localIP().toString();
+}
+
 void WifiDevice::clearRtcInitVar(WiFiManager *)
 {
     memset(WiFiDevice_reconfdetect, 0, sizeof WiFiDevice_reconfdetect);
diff --git a/networkDevices/WifiDevice.h b/networkDevices/WifiDevice.h
index d45b30e..eaf3129 100644
--- a/networkDevices/WifiDevice.h
+++ b/networkDevices/WifiDevice.h
@@ -26,6 +26,8 @@ public:
     virtual bool isConnected();
 
     int8_t signalStrength() override;
+    
+    String localIP() override;
 
     void mqttSetClientId(const char *clientId) override;