--- a/src/main/java/alice/daemon/IncomingUdpConnection.java	Fri May 16 16:50:38 2014 +0900
+++ b/src/main/java/alice/daemon/IncomingUdpConnection.java	Fri May 16 17:39:33 2014 +0900
@@ -1,8 +1,13 @@
 package alice.daemon;
 
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
 import org.msgpack.unpacker.Unpacker;
 
 import alice.codesegment.SingletonMessage;
+import alice.datasegment.Command;
+import alice.datasegment.CommandType;
 
 public class IncomingUdpConnection extends IncomingTcpConnection {
 	public MulticastConnection mConnection;
@@ -12,9 +17,32 @@
 		mConnection = mc;
 	}
 	
-	private Unpacker getUnpacker() {
-		//Unpacker unpacker = SingletonMessage.getInstance().createUnpacker(); 
-		return null;
-		
+	@Override
+	public void run() {
+		ByteBuffer receive = ByteBuffer.allocate(4096);
+		while (true){
+			try {
+				mConnection.receive(receive);
+				Unpacker unpacker = SingletonMessage.getInstance().createBufferUnpacker(receive);
+				receive.flip();
+				CommandMessage msg = unpacker.read(CommandMessage.class);
+				CommandType type = CommandType.getCommandTypeFromId(msg.type);
+				switch (type){
+				case UPDATE:
+					lmanager.getDataSegmentKey(msg.key)
+						.runCommand(new Command(type, null, null, msg.val, 0, 0, null, null, reverseKey));
+					break;
+				case PUT:
+					lmanager.getDataSegmentKey(msg.key)
+						.runCommand(new Command(type, null, null, msg.val, 0, 0, null, null, reverseKey));
+					break;
+				default:
+					break;
+				}
+			} catch (IOException e) {
+				e.printStackTrace();
+			}
+		}
 	}
+
 }

--- a/src/main/java/alice/datasegment/MulticastDataSegmentManager.java	Fri May 16 16:50:38 2014 +0900
+++ b/src/main/java/alice/datasegment/MulticastDataSegmentManager.java	Fri May 16 17:39:33 2014 +0900
@@ -69,7 +69,10 @@
 	
 	@Override
 	public void put(String key, Object val) {
-		
+		Command cmd = new Command(CommandType.PUT, null, key, val, 0, 0, null, null, null);
+		sender.sendCommand(cmd); // put command on the transmission thread
+		if (logger.isDebugEnabled())
+			logger.debug(cmd.getCommandString());
 	}
 
 	@Override