diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index fae9060..f686bc5 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -5,6 +5,12 @@
     android:versionName="1.0" >
 
     <uses-sdk android:minSdkVersion="10" android:targetSdkVersion="19" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
 
     <application
         android:icon="@drawable/ic_launcher"
diff --git a/src/ve/ucv/ciens/ccg/nxtar/MainActivity.java b/src/ve/ucv/ciens/ccg/nxtar/MainActivity.java
index 3232854..777f508 100644
--- a/src/ve/ucv/ciens/ccg/nxtar/MainActivity.java
+++ b/src/ve/ucv/ciens/ccg/nxtar/MainActivity.java
@@ -1,18 +1,48 @@
 package ve.ucv.ciens.ccg.nxtar;
 
+import ve.ucv.ciens.ccg.nxtar.interfaces.MulticastEnabler;
+import ve.ucv.ciens.ccg.nxtar.utils.AndroidToaster;
+import android.content.Context;
+import android.net.wifi.WifiManager;
+import android.net.wifi.WifiManager.MulticastLock;
 import android.os.Bundle;
 
 import com.badlogic.gdx.backends.android.AndroidApplication;
 import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;
 
-public class MainActivity extends AndroidApplication {
+public class MainActivity extends AndroidApplication implements MulticastEnabler{
+	private static final String TAG = "NXTAR_ANDROID_MAIN";
+	private static final String CLASS_NAME = MainActivity.class.getSimpleName();
+
+	private AndroidToaster toaster;
+	private WifiManager wifiManager;
+	private MulticastLock multicastLock;
+
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 
+		wifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE);
+		toaster = new AndroidToaster(this);
+
 		AndroidApplicationConfiguration cfg = new AndroidApplicationConfiguration();
 		cfg.useGL20 = false;
 
-		initialize(new Main(), cfg);
+		initialize(new Main(toaster, this), cfg);
+	}
+
+	@Override
+	public void enableMulticast(){
+		multicastLock = wifiManager.createMulticastLock(TAG);
+		multicastLock.setReferenceCounted(true);
+		multicastLock.acquire();
+	}
+
+	@Override
+	public void disableMulticast() {
+		if(multicastLock != null){
+			multicastLock.release();
+			multicastLock = null;
+		}
 	}
 }
\ No newline at end of file
diff --git a/src/ve/ucv/ciens/ccg/nxtar/utils/AndroidToaster.java b/src/ve/ucv/ciens/ccg/nxtar/utils/AndroidToaster.java
new file mode 100644
index 0000000..b93ec64
--- /dev/null
+++ b/src/ve/ucv/ciens/ccg/nxtar/utils/AndroidToaster.java
@@ -0,0 +1,41 @@
+package ve.ucv.ciens.ccg.nxtar.utils;
+
+import ve.ucv.ciens.ccg.nxtar.interfaces.Toaster;
+import android.content.Context;
+import android.os.Handler;
+import android.widget.Toast;
+
+/**
+ * Class used for showing toast messages from a LibGDX game.
+ * 
+ * @author Miguel Angel Astor Romero
+ */
+public class AndroidToaster implements Toaster {
+	private Handler uiHandler;
+	private Context uiContext; 
+
+	public AndroidToaster(Context context){
+		uiHandler = new Handler();
+		uiContext = context;
+	}
+
+	@Override
+	public void showShortToast(final String msg) {
+		uiHandler.post(new Runnable() {
+			@Override
+			public void run() {
+				Toast.makeText(uiContext, msg, Toast.LENGTH_SHORT).show();
+			}
+		});
+	}
+
+	@Override
+	public void showLongToast(final String msg) {
+		uiHandler.post(new Runnable() {
+			@Override
+			public void run() {
+				Toast.makeText(uiContext, msg, Toast.LENGTH_LONG).show();
+			}
+		});
+	}
+}