diff --git a/ws2012/P2P/uebungen/2/p2p_ex2/src/buffered/BufferedNetworkStackClient.java b/ws2012/P2P/uebungen/2/p2p_ex2/src/buffered/BufferedNetworkStackClient.java
index 46a17232..f4cdc60d 100644
--- a/ws2012/P2P/uebungen/2/p2p_ex2/src/buffered/BufferedNetworkStackClient.java
+++ b/ws2012/P2P/uebungen/2/p2p_ex2/src/buffered/BufferedNetworkStackClient.java
@@ -93,7 +93,12 @@ public class BufferedNetworkStackClient {
 		return "pop";
 	}
 
-	public void print() {
+	public void print(String host, int port) throws IOException {
+		if (channel == null) {
+			channel = DatagramChannel.open();
+		}
 
+		InetSocketAddress dest = new InetSocketAddress(host, port);
+		channel.send(ByteBuffer.wrap(new byte[] { CMD_PRINT }), dest);
 	}
 }
diff --git a/ws2012/P2P/uebungen/2/p2p_ex2/src/buffered/ClientGUI.java b/ws2012/P2P/uebungen/2/p2p_ex2/src/buffered/ClientGUI.java
index b581bc3e..ea1e90ee 100644
--- a/ws2012/P2P/uebungen/2/p2p_ex2/src/buffered/ClientGUI.java
+++ b/ws2012/P2P/uebungen/2/p2p_ex2/src/buffered/ClientGUI.java
@@ -22,7 +22,6 @@ public class ClientGUI extends JFrame {
 	private JTextField userinput;
 	private JTextField txtPort;
 	private JScrollPane scrollPane;
-	// private int port;
 	private JTextPane textPane;
 	private BufferedNetworkStackClient client = null;
 	private JTextField txtHost;
@@ -47,6 +46,7 @@ public class ClientGUI extends JFrame {
 	 * Create the frame.
 	 */
 	public ClientGUI() {
+		setResizable(false);
 		client = new BufferedNetworkStackClient();
 
 		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
@@ -58,7 +58,7 @@ public class ClientGUI extends JFrame {
 
 		JPanel panelPref = new JPanel();
 		contentPane.add(panelPref, BorderLayout.NORTH);
-		panelPref.setLayout(new GridLayout(2, 4, 0, 0));
+		panelPref.setLayout(new GridLayout(0, 4, 0, 0));
 
 		JLabel lblHost = new JLabel("Hostname:");
 		panelPref.add(lblHost);
@@ -89,6 +89,21 @@ public class ClientGUI extends JFrame {
 
 		JButton btnPop = new JButton("Pop");
 		panelPref.add(btnPop);
+
+		JButton btnPrint = new JButton("Print");
+		btnPrint.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				try {
+					client.print(txtHost.getText(),
+							Integer.valueOf(txtPort.getText()));
+				} catch (NumberFormatException e1) {
+					e1.printStackTrace();
+				} catch (IOException e1) {
+					e1.printStackTrace();
+				}
+			}
+		});
+		panelPref.add(btnPrint);
 		btnPop.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e) {
 				String received = "";