@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+import socket
+from sys import argv
+import time
+
+if len(argv) < 3:
+    print("input error")
+    print(argv)
+    exit(-1)
+
+address = argv[1]
+port = int(argv[2])
+
+s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+addr = (address, port)
+
+
+while True:
+  try:
+      str = "tester"
+      s.sendto(bytes(str, encoding="utf8"), addr)
+      response, addr = s.recvfrom(1024)
+      print("Receive from %s:%s" % addr)
+      print(response.decode())
+      time.sleep(10)
+  except KeyboardInterrupt:
+    break
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+import socket
+from sys import argv
+
+s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+print(argv)
+
+if len(argv) < 2:
+    print("no port...")
+    exit(-1)
+
+port = int(argv[1])
+s.bind(("0.0.0.0", port))
+
+print("UDP bound on port ", port)
+
+while True:
+  try:
+      data, addr = s.recvfrom(1024)
+      print("Receive from %s:%s" % addr)
+      s.sendto(b"Hello %s!\n" % data, addr)
+  except KeyboardInterrupt:
+    break