diff --git a/viewer-terminal/src/ViewTerminal/PlaneContainer.java b/viewer-terminal/src/ViewTerminal/PlaneContainer.java
index 98740f5..64a3cba 100644
--- a/viewer-terminal/src/ViewTerminal/PlaneContainer.java
+++ b/viewer-terminal/src/ViewTerminal/PlaneContainer.java
@@ -1,5 +1,6 @@
 package ViewTerminal;
 
+import java.io.IOException;
 import java.net.DatagramPacket;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
@@ -27,8 +28,17 @@ public class PlaneContainer {
 	
 	public void notifyReceive() throws InvalidFlagException{
 		DatagramPacket packet = this.socket.synchronousReceive();
+		ByteBuffer buf = ByteBuffer.allocate(1);
+		buf.put((byte)16);
+		DatagramPacket ping = new DatagramPacket(buf.array(),buf.array().length,packet.getAddress(),packet.getPort());
+		try {
+			this.socket.send(ping);
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
 		
-		ByteBuffer buf = ByteBuffer.wrap(packet.getData());
+		buf = ByteBuffer.wrap(packet.getData());
 		
 		byte flag;
 		byte nbrPlane;
diff --git a/viewer-terminal/viewTerm.jar b/viewer-terminal/viewTerm.jar
index af0702d..5dafac4 100644
Binary files a/viewer-terminal/viewTerm.jar and b/viewer-terminal/viewTerm.jar differ