diff --git a/src/main/java/info/istlab/ServerTester/MulticastReceiver.java b/src/main/java/info/istlab/ServerTester/MulticastReceiver.java
index 0e311e1..85dcbf0 100644
--- a/src/main/java/info/istlab/ServerTester/MulticastReceiver.java
+++ b/src/main/java/info/istlab/ServerTester/MulticastReceiver.java
@@ -29,8 +29,9 @@
             } catch (IOException e) {
                 e.printStackTrace();
             }
+            String addr = packet.getAddress().getHostAddress();
             String message = new String(packet.getData(), 0, packet.getLength());
-            System.out.println("受信: " + message);
+            System.out.println(addr+"からの受信: " + message);
 
         }
     }
diff --git a/src/main/java/info/istlab/ServerTester/MulticastSender.java b/src/main/java/info/istlab/ServerTester/MulticastSender.java
index ebcd863..606550b 100644
--- a/src/main/java/info/istlab/ServerTester/MulticastSender.java
+++ b/src/main/java/info/istlab/ServerTester/MulticastSender.java
@@ -1,12 +1,15 @@
 package info.istlab.ServerTester;
 
+import java.awt.Component;
 import java.io.IOException;
 import java.net.DatagramPacket;
 import java.net.InetAddress;
 import java.net.MulticastSocket;
-import java.util.Random;
+
+import javax.swing.JPanel;
 
 public class MulticastSender implements Runnable {
+
     Thread thread;
     MulticastSocket socket = null;
     public String message;
@@ -27,9 +30,10 @@
 
     @Override
     public void run() {
-        Random rand = new Random();
+        String serverinfo = getServerInfo();
+
         while(thread != null){
-            String message = "from "+App.ipAddr + " "+rand.nextInt(100) ;
+            String message = serverinfo; // "from "+App.ipAddr + " "+rand.nextInt(100) ;
             byte[] data = message.getBytes();
             DatagramPacket packet = new DatagramPacket(data, data.length, group, port);
             try {
@@ -39,7 +43,7 @@
             }
 
             try {
-                Thread.sleep(2000);
+                Thread.sleep(5000);
             } catch (InterruptedException e) {
                 e.printStackTrace();
             }
@@ -47,4 +51,21 @@
 
     }
 
+    private String getServerInfo() {
+        JPanel mainPanel = Host.mainhost.mainPanel;
+        // 情報収集
+        StringBuffer sb = new StringBuffer();
+        for(Component c: mainPanel.getComponents()){
+            if(c instanceof ServerPanel){
+                ServerPanel sp = (ServerPanel)c;
+                sb.append(sp.getAvailableServices()+"\n");
+            }
+            if (c instanceof ServerPanel4WS) {
+                ServerPanel4WS sp = (ServerPanel4WS) c;
+                sb.append(sp.getAvailableServices() + "\n");
+            }
+        }
+        return sb.toString();
+    }
+
 }