diff --git a/src/main/java/com/bwssystems/HABridge/upnp/UpnpListener.java b/src/main/java/com/bwssystems/HABridge/upnp/UpnpListener.java
index 0bcf81b..57710b9 100644
--- a/src/main/java/com/bwssystems/HABridge/upnp/UpnpListener.java
+++ b/src/main/java/com/bwssystems/HABridge/upnp/UpnpListener.java
@@ -9,6 +9,7 @@ import com.bwssystems.HABridge.Configuration;
 import com.bwssystems.HABridge.api.hue.HueConstants;
 import com.bwssystems.HABridge.api.hue.HuePublicConfig;
 import com.bwssystems.HABridge.util.UDPDatagramSender;
+import com.bwssystems.HABridge.util.AddressUtil;
 
 import java.io.IOException;
 import java.net.*;
@@ -331,8 +332,14 @@ public class UpnpListener {
 		InetAddress requester = aPacket.getAddress();
 		int sourcePort = aPacket.getPort();
 		String discoveryResponse = null;
-		// refactored suggestion by https://github.com/pvint
-		String httpLocationAddress = getOutboundAddress(requesterAddress).getHostAddress();
+		String httpLocationAddress = null;
+		if(useUpnpIface) {
+			httpLocationAddress = upnpConfigIP;
+		} else {
+			// refactored suggestion by https://github.com/pvint
+			httpLocationAddress = AddressUtil.getOutboundAddress(requesterAddress).getHostAddress();
+		}
+
 		try {
 			Thread.sleep(theUpnpSendDelay);
 		} catch (InterruptedException e) {
@@ -437,21 +444,4 @@ public class UpnpListener {
 		log.debug("sendUpnpNotify notifyTemplate3 is <<<{}>>>", notifyData);
 		sendUDPResponse(notifyData.getBytes(), aSocketAddress, Configuration.UPNP_DISCOVERY_PORT);
 	}
-
-	// added by https://github.com/pvint
-	// Ruthlessly stolen from
-	// https://stackoverflow.com/questions/22045165/java-datagrampacket-receive-how-to-determine-local-ip-interface
-	// Try to get a source IP that makes sense for the requestor to contact for use
-	// in the LOCATION header in replies
-	private InetAddress getOutboundAddress(SocketAddress remoteAddress) throws SocketException {
-		DatagramSocket sock = new DatagramSocket();
-		// connect is needed to bind the socket and retrieve the local address
-		// later (it would return 0.0.0.0 otherwise)
-		sock.connect(remoteAddress);
-		final InetAddress localAddress = sock.getLocalAddress();
-		sock.disconnect();
-		sock.close();
-		sock = null;
-		return localAddress;
-	}
 }
diff --git a/src/main/java/com/bwssystems/HABridge/upnp/UpnpSettingsResource.java b/src/main/java/com/bwssystems/HABridge/upnp/UpnpSettingsResource.java
index b62d84e..33d7534 100644
--- a/src/main/java/com/bwssystems/HABridge/upnp/UpnpSettingsResource.java
+++ b/src/main/java/com/bwssystems/HABridge/upnp/UpnpSettingsResource.java
@@ -7,6 +7,7 @@ import com.bwssystems.HABridge.BridgeSettings;
 import com.bwssystems.HABridge.BridgeSettingsDescriptor;
 import com.bwssystems.HABridge.api.hue.HueConstants;
 import com.bwssystems.HABridge.api.hue.HuePublicConfig;
+import com.bwssystems.HABridge.util.AddressUtil;
 import com.bwssystems.HABridge.util.ParseRoute;
 
 import static spark.Spark.get;
@@ -98,7 +99,12 @@ public class UpnpSettingsResource {
 				httpLocationAddr = theSettings.getUpnpConfigAddress();
 				hueTemplate = hueTemplate_pre + hueTemplate_mid_orig + hueTemplate_post;
 			} else {
-				httpLocationAddr = getOutboundAddress(request.ip(), request.port()).getHostAddress();
+
+				if(theSettings.isUseupnpiface()) {
+					httpLocationAddr = theSettings.getUpnpConfigAddress();
+				} else {
+					httpLocationAddr = AddressUtil.getOutboundAddress(request.ip(), request.port()).getHostAddress();
+				}
 				hueTemplate = hueTemplate_pre + hueTemplate_post;
 			}
 
@@ -136,28 +142,4 @@ public class UpnpSettingsResource {
 			return "";
         } );
 	}
-	// added by https://github.com/pvint
-	// Ruthlessly stolen from https://stackoverflow.com/questions/22045165/java-datagrampacket-receive-how-to-determine-local-ip-interface
-	// Try to get a source IP that makes sense for the requester to contact for use in the LOCATION header in replies
-	private InetAddress getOutboundAddress(String remoteAddress, int remotePort) {
-		InetAddress localAddress = null;
-		try {
-		DatagramSocket sock = new DatagramSocket();
-		// connect is needed to bind the socket and retrieve the local address
-		// later (it would return 0.0.0.0 otherwise)
-		sock.connect(new InetSocketAddress(remoteAddress, remotePort));
-		localAddress = sock.getLocalAddress();
-		sock.disconnect();
-		sock.close();
-		sock = null;
-		} catch(Exception e)  {
-			ParseRoute theRoute = ParseRoute.getInstance();
-			try {
-				localAddress = InetAddress.getByName(theRoute.getLocalIPAddress());
-			} catch(Exception e1) {}
-			log.warn("Error <" + e.getMessage() + "> on determining interface to reply for <" + remoteAddress + ">. Using default route IP Address of " + localAddress.getHostAddress());
-		}
-		log.debug("getOutbountAddress returning IP Address of " + localAddress.getHostAddress());
-		return localAddress;
-	}
 }
diff --git a/src/main/java/com/bwssystems/HABridge/util/AddressUtil.java b/src/main/java/com/bwssystems/HABridge/util/AddressUtil.java
new file mode 100644
index 0000000..6eb4aa2
--- /dev/null
+++ b/src/main/java/com/bwssystems/HABridge/util/AddressUtil.java
@@ -0,0 +1,56 @@
+package com.bwssystems.HABridge.util;
+
+import java.net.*;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class AddressUtil {
+    final static Logger log = LoggerFactory.getLogger(AddressUtil.class);
+
+    // added by https://github.com/pvint
+    // Ruthlessly stolen from
+    // https://stackoverflow.com/questions/22045165/java-datagrampacket-receive-how-to-determine-local-ip-interface
+    // Try to get a source IP that makes sense for the requester to contact for use
+    // in the LOCATION header in replies
+    public static InetAddress getOutboundAddress(String remoteAddress, int remotePort) {
+        InetAddress localAddress = null;
+        try {
+            DatagramSocket sock = new DatagramSocket();
+            // connect is needed to bind the socket and retrieve the local address
+            // later (it would return 0.0.0.0 otherwise)
+            sock.connect(new InetSocketAddress(remoteAddress, remotePort));
+            localAddress = sock.getLocalAddress();
+            sock.disconnect();
+            sock.close();
+            sock = null;
+        } catch (Exception e) {
+            ParseRoute theRoute = ParseRoute.getInstance();
+            try {
+                localAddress = InetAddress.getByName(theRoute.getLocalIPAddress());
+            } catch (Exception e1) {
+            }
+            log.warn("Error <" + e.getMessage() + "> on determining interface to reply for <" + remoteAddress
+                    + ">. Using default route IP Address of " + localAddress.getHostAddress());
+        }
+        log.debug("getOutbountAddress returning IP Address of " + localAddress.getHostAddress());
+        return localAddress;
+    }
+
+	// added by https://github.com/pvint
+	// Ruthlessly stolen from
+	// https://stackoverflow.com/questions/22045165/java-datagrampacket-receive-how-to-determine-local-ip-interface
+	// Try to get a source IP that makes sense for the requestor to contact for use
+	// in the LOCATION header in replies
+	public static InetAddress getOutboundAddress(SocketAddress remoteAddress) throws SocketException {
+		DatagramSocket sock = new DatagramSocket();
+		// connect is needed to bind the socket and retrieve the local address
+		// later (it would return 0.0.0.0 otherwise)
+		sock.connect(remoteAddress);
+		final InetAddress localAddress = sock.getLocalAddress();
+		sock.disconnect();
+		sock.close();
+		sock = null;
+		return localAddress;
+	}
+}
\ No newline at end of file