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diff --git a/implementation/helper/boost/asio/ip/udp_ext.hpp b/implementation/helper/boost/asio/ip/udp_ext.hpp
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+//
+// ip/udp_ext.hpp
+// ~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+// Copyright (C) 2016-2017 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_boost or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_ASIO_IP_UDP_EXT_HPP
+#define BOOST_ASIO_IP_UDP_EXT_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include <boost/asio/detail/config.hpp>
+#include <boost/asio/basic_datagram_socket_ext.hpp>
+#include <boost/asio/detail/socket_types.hpp>
+#include <boost/asio/ip/basic_endpoint.hpp>
+#include <boost/asio/ip/basic_resolver.hpp>
+#include <boost/asio/ip/basic_resolver_iterator.hpp>
+#include <boost/asio/ip/basic_resolver_query.hpp>
+#include <boost/asio/ip/udp.hpp>
+
+#include <boost/asio/detail/push_options.hpp>
+
+namespace boost {
+namespace asio {
+namespace ip {
+
+/// Encapsulates the flags needed for UDP.
+/**
+ * The boost::asio::ip::udp_ext class contains flags necessary for UDP sockets.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Safe.
+ *
+ * @par Concepts:
+ * Protocol, InternetProtocol.
+ */
+class udp_ext
+{
+public:
+  /// The type of a UDP endpoint.
+  typedef basic_endpoint<udp> endpoint;
+
+  /// Construct to represent the IPv4 UDP protocol.
+  static udp_ext v4()
+  {
+    return udp_ext(BOOST_ASIO_OS_DEF(AF_INET));
+  }
+
+  /// Construct to represent the IPv6 UDP protocol.
+  static udp_ext v6()
+  {
+    return udp_ext(BOOST_ASIO_OS_DEF(AF_INET6));
+  }
+
+  /// Obtain an identifier for the type of the protocol.
+  int type() const
+  {
+    return BOOST_ASIO_OS_DEF(SOCK_DGRAM);
+  }
+
+  /// Obtain an identifier for the protocol.
+  int protocol() const
+  {
+    return BOOST_ASIO_OS_DEF(IPPROTO_UDP);
+  }
+
+  /// Obtain an identifier for the protocol family.
+  int family() const
+  {
+    return family_;
+  }
+
+  /// The UDP socket type.
+  typedef basic_datagram_socket_ext<udp> socket;
+
+  /// The UDP resolver type.
+  typedef basic_resolver<udp> resolver;
+
+  /// Compare two protocols for equality.
+  friend bool operator==(const udp_ext& p1, const udp_ext& p2)
+  {
+    return p1.family_ == p2.family_;
+  }
+
+  /// Compare two protocols for inequality.
+  friend bool operator!=(const udp_ext& p1, const udp_ext& p2)
+  {
+    return p1.family_ != p2.family_;
+  }
+
+private:
+  // Construct with a specific family.
+  explicit udp_ext(int protocol_family)
+    : family_(protocol_family)
+  {
+  }
+
+  int family_;
+};
+
+} // namespace ip
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_IP_UDP_EXT_HPP