--- a/src/wifibroadcast/WifiBroadcast.java	Sun Jul 29 00:03:29 2012 +0900
+++ b/src/wifibroadcast/WifiBroadcast.java	Sun Jul 29 11:10:08 2012 +0900
@@ -74,6 +74,7 @@
 				if (broadcast == null)
 					continue;
 				// Use the address
+				System.out.println("MTU="+networkInterface.getMTU());
 				return broadcast;
 			}
 		}

--- a/src/wifibroadcast/WifiBroadcastTest.java	Sun Jul 29 00:03:29 2012 +0900
+++ b/src/wifibroadcast/WifiBroadcastTest.java	Sun Jul 29 11:10:08 2012 +0900
@@ -28,15 +28,15 @@
 		try {
 			if (multicast) {
 				for(int i=0;i<wbr.length;i++) wbr[i] = new WifiMulticast(i,MCASTADDR,port,WifiReceiver.SocketType.Receiver);
-				Thread.sleep(timeout);
+				Thread.sleep(timeout/4);
 				for(int i=0;i<wbs.length;i++) wbs[i] = new WifiMulticast(i,MCASTADDR,port,WifiReceiver.SocketType.Sender);
 			} else if (mchannel) {
-				for(int i=0;i<wbr.length;i++) wbr[i]= new WifiMulticastChannel(i,MCASTADDR,port,WifiReceiver.SocketType.Receiver);
-				Thread.sleep(timeout);
+				for(int i=0;i<wbr.length;i++) wbr[i] = new WifiMulticastChannel(i,MCASTADDR,port,WifiReceiver.SocketType.Receiver);
+				Thread.sleep(timeout/4);
 				for(int i=0;i<wbs.length;i++) wbs[i] = new WifiMulticastChannel(i,MCASTADDR,port,WifiReceiver.SocketType.Sender);
 			} else {
-				for(int i=0;i<wbr.length;i++) wbr[i]= new WifiBroadcast(i,port,WifiReceiver.SocketType.Receiver);
-				Thread.sleep(timeout);
+				for(int i=0;i<wbr.length;i++) wbr[i] = new WifiBroadcast(i,port,WifiReceiver.SocketType.Receiver);
+				Thread.sleep(timeout/4);
 				for(int i=0;i<wbs.length;i++) wbs[i] = new WifiBroadcast(i,port,WifiReceiver.SocketType.Sender);
 			}
 		} catch (IOException e) {
@@ -56,6 +56,7 @@
 			else if (args[i].equals("-s"))  { i++; sender_count = getOptInt(args, count, i); wbs = new WifiReceiver[sender_count]; }
 			else if (args[i].equals("-c")) { i++; count = getOptInt(args, count, i);}
 			else if (args[i].equals("-t")) { i++; timeout = getOptInt(args, count, i);}
+			else if (args[i].equals("-T")) { i++; testSize = getOptInt(args, count, i);}
 			else if (args[i].equals("-p")) { i++; port = getOptInt(args, count, i);}
 		}
 	}