diff --git a/tests/daemon/face/udp.cpp b/tests/daemon/face/udp.cpp
new file mode 100644
index 0000000..2dfca3a
--- /dev/null
+++ b/tests/daemon/face/udp.cpp
@@ -0,0 +1,915 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014  Regents of the University of California,
+ *                     Arizona Board of Regents,
+ *                     Colorado State University,
+ *                     University Pierre & Marie Curie, Sorbonne University,
+ *                     Washington University in St. Louis,
+ *                     Beijing Institute of Technology
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "face/udp-factory.hpp"
+
+#include "tests/test-common.hpp"
+#include "tests/limited-io.hpp"
+
+namespace nfd {
+namespace tests {
+
+BOOST_FIXTURE_TEST_SUITE(FaceUdp, BaseFixture)
+
+class FactoryErrorCheck : protected BaseFixture
+{
+public:
+  bool isTheSameMulticastEndpoint(const UdpFactory::Error& e) {
+    return strcmp(e.what(),
+                  "Cannot create the requested UDP unicast channel, local "
+                  "endpoint is already allocated for a UDP multicast face") == 0;
+  }
+
+  bool isNotMulticastAddress(const UdpFactory::Error& e) {
+    return strcmp(e.what(),
+                  "Cannot create the requested UDP multicast face, "
+                  "the multicast group given as input is not a multicast address") == 0;
+  }
+
+  bool isTheSameUnicastEndpoint(const UdpFactory::Error& e) {
+    return strcmp(e.what(),
+                  "Cannot create the requested UDP multicast face, local "
+                  "endpoint is already allocated for a UDP unicast channel") == 0;
+  }
+
+  bool isLocalEndpointOnDifferentGroup(const UdpFactory::Error& e) {
+    return strcmp(e.what(),
+                  "Cannot create the requested UDP multicast face, local "
+                  "endpoint is already allocated for a UDP multicast face "
+                  "on a different multicast group") == 0;
+  }
+};
+
+BOOST_FIXTURE_TEST_CASE(ChannelMapUdp, FactoryErrorCheck)
+{
+  using boost::asio::ip::udp;
+
+  UdpFactory factory = UdpFactory();
+
+  //to instantiate multicast face on a specific ip address, change interfaceIp
+  std::string interfaceIp = "0.0.0.0";
+
+  shared_ptr<UdpChannel> channel1 = factory.createChannel("127.0.0.1", "20070");
+  shared_ptr<UdpChannel> channel1a = factory.createChannel("127.0.0.1", "20070");
+  BOOST_CHECK_EQUAL(channel1, channel1a);
+  BOOST_CHECK_EQUAL(channel1->getUri().toString(), "udp4://127.0.0.1:20070");
+
+  shared_ptr<UdpChannel> channel2 = factory.createChannel("127.0.0.1", "20071");
+  BOOST_CHECK_NE(channel1, channel2);
+
+  shared_ptr<UdpChannel> channel3 = factory.createChannel(interfaceIp, "20070");
+
+  shared_ptr<UdpChannel> channel4 = factory.createChannel("::1", "20071");
+  BOOST_CHECK_NE(channel2, channel4);
+  BOOST_CHECK_EQUAL(channel4->getUri().toString(), "udp6://[::1]:20071");
+
+  //same endpoint of a unicast channel
+  BOOST_CHECK_EXCEPTION(factory.createMulticastFace(interfaceIp,
+                                                    "224.0.0.1",
+                                                    "20070"),
+                        UdpFactory::Error,
+                        isTheSameUnicastEndpoint);
+
+
+  shared_ptr<MulticastUdpFace> multicastFace1 = factory.createMulticastFace(interfaceIp,
+                                                                            "224.0.0.1",
+                                                                            "20072");
+  shared_ptr<MulticastUdpFace> multicastFace1a = factory.createMulticastFace(interfaceIp,
+                                                                            "224.0.0.1",
+                                                                            "20072");
+  BOOST_CHECK_EQUAL(multicastFace1, multicastFace1a);
+
+
+  //same endpoint of a multicast face
+  BOOST_CHECK_EXCEPTION(factory.createChannel(interfaceIp, "20072"),
+                        UdpFactory::Error,
+                        isTheSameMulticastEndpoint);
+
+  //same multicast endpoint, different group
+  BOOST_CHECK_EXCEPTION(factory.createMulticastFace(interfaceIp,
+                                                    "224.0.0.42",
+                                                    "20072"),
+                        UdpFactory::Error,
+                        isLocalEndpointOnDifferentGroup);
+
+  BOOST_CHECK_EXCEPTION(factory.createMulticastFace(interfaceIp,
+                                                    "192.168.10.15",
+                                                    "20025"),
+                        UdpFactory::Error,
+                        isNotMulticastAddress);
+
+
+//  //Test commented because it required to be run in a machine that can resolve ipv6 query
+//  shared_ptr<UdpChannel> channel1v6 = factory.createChannel(//"::1",
+//                                                     "fe80::5e96:9dff:fe7d:9c8d%en1",
+//                                                     //"fe80::aa54:b2ff:fe08:27b8%wlan0",
+//                                                     "20070");
+//
+//  //the creation of multicastFace2 works properly. It has been disable because it needs an IP address of
+//  //an available network interface (different from the first one used)
+//  shared_ptr<MulticastUdpFace> multicastFace2 = factory.createMulticastFace("192.168.1.17",
+//                                                                            "224.0.0.1",
+//                                                                            "20073");
+//  BOOST_CHECK_NE(multicastFace1, multicastFace2);
+//
+//
+//  //ipv6 - work in progress
+//  shared_ptr<MulticastUdpFace> multicastFace3 = factory.createMulticastFace("fe80::5e96:9dff:fe7d:9c8d%en1",
+//                                                                            "FF01:0:0:0:0:0:0:2",
+//                                                                            "20073");
+//
+//  shared_ptr<MulticastUdpFace> multicastFace4 = factory.createMulticastFace("fe80::aa54:b2ff:fe08:27b8%wlan0",
+//                                                                            "FF01:0:0:0:0:0:0:2",
+//                                                                            "20073");
+//
+//  BOOST_CHECK_EQUAL(multicastFace3, multicastFace4);
+//
+//  shared_ptr<MulticastUdpFace> multicastFace5 = factory.createMulticastFace("::1",
+//                                                                            "FF01:0:0:0:0:0:0:2",
+//                                                                            "20073");
+//
+//  BOOST_CHECK_NE(multicastFace3, multicastFace5);
+//
+//  //same local ipv6 endpoint for a different multicast group
+//  BOOST_CHECK_THROW(factory.createMulticastFace("fe80::aa54:b2ff:fe08:27b8%wlan0",
+//                                                "FE01:0:0:0:0:0:0:2",
+//                                                "20073"),
+//                    UdpFactory::Error);
+//
+//  //same local ipv6 (expect for th port number) endpoint for a different multicast group
+//  BOOST_CHECK_THROW(factory.createMulticastFace("fe80::aa54:b2ff:fe08:27b8%wlan0",
+//                                                "FE01:0:0:0:0:0:0:2",
+//                                                "20075"),
+//                    UdpFactory::Error);
+//
+//  BOOST_CHECK_THROW(factory.createMulticastFace("fa80::20a:9dff:fef6:12ff",
+//                                                "FE12:0:0:0:0:0:0:2",
+//                                                "20075"),
+//                    UdpFactory::Error);
+//
+//  //not a multicast ipv6
+//  BOOST_CHECK_THROW(factory.createMulticastFace("fa80::20a:9dff:fef6:12ff",
+//                                                "A112:0:0:0:0:0:0:2",
+//                                                "20075"),
+//                    UdpFactory::Error);
+}
+
+class EndToEndFixture : protected BaseFixture
+{
+public:
+  void
+  channel1_onFaceCreated(const shared_ptr<Face>& newFace)
+  {
+    BOOST_CHECK(!static_cast<bool>(face1));
+    channel1_onFaceCreatedNoCheck(newFace);
+  }
+
+  void
+  channel1_onFaceCreatedNoCheck(const shared_ptr<Face>& newFace)
+  {
+    face1 = newFace;
+    face1->onReceiveInterest +=
+      bind(&EndToEndFixture::face1_onReceiveInterest, this, _1);
+    face1->onReceiveData +=
+      bind(&EndToEndFixture::face1_onReceiveData, this, _1);
+    face1->onFail +=
+      bind(&EndToEndFixture::face1_onFail, this);
+    BOOST_CHECK_MESSAGE(true, "channel 1 face created");
+
+    faces.push_back(face1);
+
+    limitedIo.afterOp();
+  }
+
+  void
+  channel1_onConnectFailed(const std::string& reason)
+  {
+    BOOST_CHECK_MESSAGE(false, reason);
+
+    limitedIo.afterOp();
+  }
+
+  void
+  face1_onReceiveInterest(const Interest& interest)
+  {
+    face1_receivedInterests.push_back(interest);
+
+    limitedIo.afterOp();
+  }
+
+  void
+  face1_onReceiveData(const Data& data)
+  {
+    face1_receivedDatas.push_back(data);
+
+    limitedIo.afterOp();
+  }
+
+  void
+  face1_onFail()
+  {
+    face1.reset();
+    limitedIo.afterOp();
+  }
+
+  void
+  channel2_onFaceCreated(const shared_ptr<Face>& newFace)
+  {
+    BOOST_CHECK(!static_cast<bool>(face2));
+    face2 = newFace;
+    face2->onReceiveInterest +=
+      bind(&EndToEndFixture::face2_onReceiveInterest, this, _1);
+    face2->onReceiveData +=
+      bind(&EndToEndFixture::face2_onReceiveData, this, _1);
+    face2->onFail +=
+      bind(&EndToEndFixture::face2_onFail, this);
+
+    faces.push_back(face2);
+
+    BOOST_CHECK_MESSAGE(true, "channel 2 face created");
+    limitedIo.afterOp();
+  }
+
+  void
+  channel2_onConnectFailed(const std::string& reason)
+  {
+    BOOST_CHECK_MESSAGE(false, reason);
+
+    limitedIo.afterOp();
+  }
+
+  void
+  face2_onReceiveInterest(const Interest& interest)
+  {
+    face2_receivedInterests.push_back(interest);
+
+    limitedIo.afterOp();
+  }
+
+  void
+  face2_onReceiveData(const Data& data)
+  {
+    face2_receivedDatas.push_back(data);
+
+    limitedIo.afterOp();
+  }
+
+  void
+  face2_onFail()
+  {
+    face2.reset();
+    limitedIo.afterOp();
+  }
+
+  void
+  channel3_onFaceCreated(const shared_ptr<Face>& newFace)
+  {
+    BOOST_CHECK(!static_cast<bool>(face1));
+    face3 = newFace;
+    faces.push_back(newFace);
+
+    limitedIo.afterOp();
+  }
+
+  void
+  channel_onFaceCreated(const shared_ptr<Face>& newFace)
+  {
+    faces.push_back(newFace);
+    limitedIo.afterOp();
+  }
+
+  void
+  channel_onConnectFailed(const std::string& reason)
+  {
+    BOOST_CHECK_MESSAGE(false, reason);
+
+    limitedIo.afterOp();
+  }
+
+  void
+  channel_onConnectFailedOk(const std::string& reason)
+  {
+    //it's ok, it was supposed to fail
+    limitedIo.afterOp();
+  }
+
+  void
+  checkFaceList(size_t shouldBe)
+  {
+    BOOST_CHECK_EQUAL(faces.size(), shouldBe);
+  }
+
+public:
+  LimitedIo limitedIo;
+
+  shared_ptr<Face> face1;
+  std::vector<Interest> face1_receivedInterests;
+  std::vector<Data> face1_receivedDatas;
+  shared_ptr<Face> face2;
+  std::vector<Interest> face2_receivedInterests;
+  std::vector<Data> face2_receivedDatas;
+  shared_ptr<Face> face3;
+
+  std::list< shared_ptr<Face> > faces;
+};
+
+
+BOOST_FIXTURE_TEST_CASE(EndToEnd4, EndToEndFixture)
+{
+  UdpFactory factory;
+
+  factory.createChannel("127.0.0.1", "20071");
+
+  factory.createFace(FaceUri("udp4://127.0.0.1:20070"),
+                     bind(&EndToEndFixture::channel2_onFaceCreated, this, _1),
+                     bind(&EndToEndFixture::channel2_onConnectFailed, this, _1));
+
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot connect or cannot accept connection");
+
+  BOOST_REQUIRE(static_cast<bool>(face2));
+  BOOST_CHECK_EQUAL(face2->getRemoteUri().toString(), "udp4://127.0.0.1:20070");
+  BOOST_CHECK_EQUAL(face2->getLocalUri().toString(), "udp4://127.0.0.1:20071");
+  BOOST_CHECK_EQUAL(face2->isLocal(), false);
+  // face1 is not created yet
+
+  shared_ptr<UdpChannel> channel1 = factory.createChannel("127.0.0.1", "20070");
+  channel1->listen(bind(&EndToEndFixture::channel1_onFaceCreated,   this, _1),
+                   bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));
+
+  Interest interest1("ndn:/TpnzGvW9R");
+  Data     data1    ("ndn:/KfczhUqVix");
+  data1.setContent(0, 0);
+  Interest interest2("ndn:/QWiIMfj5sL");
+  Data     data2    ("ndn:/XNBV796f");
+  data2.setContent(0, 0);
+  Interest interest3("ndn:/QWiIhjgkj5sL");
+  Data     data3    ("ndn:/XNBV794f");
+  data3.setContent(0, 0);
+
+
+  ndn::SignatureSha256WithRsa fakeSignature;
+  fakeSignature.setValue(ndn::dataBlock(tlv::SignatureValue,
+                                        reinterpret_cast<const uint8_t*>(0),
+                                        0));
+
+  // set fake signature on data1 and data2
+  data1.setSignature(fakeSignature);
+  data2.setSignature(fakeSignature);
+  data3.setSignature(fakeSignature);
+
+  face2->sendInterest(interest2);
+  face2->sendData    (data2    );
+  face2->sendData    (data2    );
+  face2->sendData    (data2    );
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(5,//4 send + 1 listen return
+                      time::seconds(4)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+
+  BOOST_REQUIRE(static_cast<bool>(face1));
+  BOOST_CHECK_EQUAL(face1->getRemoteUri().toString(), "udp4://127.0.0.1:20071");
+  BOOST_CHECK_EQUAL(face1->getLocalUri().toString(), "udp4://127.0.0.1:20070");
+  BOOST_CHECK_EQUAL(face1->isLocal(), false);
+
+  face1->sendInterest(interest1);
+  face1->sendInterest(interest1);
+  face1->sendInterest(interest1);
+  face1->sendData    (data1    );
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(4, time::seconds(4)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+
+
+  BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 1);
+  BOOST_REQUIRE_EQUAL(face1_receivedDatas    .size(), 3);
+  BOOST_REQUIRE_EQUAL(face2_receivedInterests.size(), 3);
+  BOOST_REQUIRE_EQUAL(face2_receivedDatas    .size(), 1);
+
+  BOOST_CHECK_EQUAL(face1_receivedInterests[0].getName(), interest2.getName());
+  BOOST_CHECK_EQUAL(face1_receivedDatas    [0].getName(), data2.getName());
+  BOOST_CHECK_EQUAL(face2_receivedInterests[0].getName(), interest1.getName());
+  BOOST_CHECK_EQUAL(face2_receivedDatas    [0].getName(), data1.getName());
+
+
+
+  //checking if the connection accepting mechanism works properly.
+
+  face2->sendData    (data3    );
+  face2->sendInterest(interest3);
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+
+  BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 2);
+  BOOST_REQUIRE_EQUAL(face1_receivedDatas    .size(), 4);
+
+  BOOST_CHECK_EQUAL(face1_receivedInterests[1].getName(), interest3.getName());
+  BOOST_CHECK_EQUAL(face1_receivedDatas    [3].getName(), data3.getName());
+
+  const FaceCounters& counters1 = face1->getCounters();
+  BOOST_CHECK_EQUAL(counters1.getNInInterests() , 2);
+  BOOST_CHECK_EQUAL(counters1.getNInDatas()     , 4);
+  BOOST_CHECK_EQUAL(counters1.getNOutInterests(), 3);
+  BOOST_CHECK_EQUAL(counters1.getNOutDatas()    , 1);
+
+  const FaceCounters& counters2 = face2->getCounters();
+  BOOST_CHECK_EQUAL(counters2.getNInInterests() , 3);
+  BOOST_CHECK_EQUAL(counters2.getNInDatas()     , 1);
+  BOOST_CHECK_EQUAL(counters2.getNOutInterests(), 2);
+  BOOST_CHECK_EQUAL(counters2.getNOutDatas()    , 4);
+}
+
+BOOST_FIXTURE_TEST_CASE(EndToEnd6, EndToEndFixture)
+{
+  UdpFactory factory;
+
+  factory.createChannel("::1", "20071");
+
+  factory.createFace(FaceUri("udp://[::1]:20070"),
+                     bind(&EndToEndFixture::channel2_onFaceCreated, this, _1),
+                     bind(&EndToEndFixture::channel2_onConnectFailed, this, _1));
+
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot connect or cannot accept connection");
+
+  BOOST_REQUIRE(static_cast<bool>(face2));
+  BOOST_CHECK_EQUAL(face2->getRemoteUri().toString(), "udp6://[::1]:20070");
+  BOOST_CHECK_EQUAL(face2->getLocalUri().toString(), "udp6://[::1]:20071");
+  BOOST_CHECK_EQUAL(face2->isLocal(), false);
+  // face1 is not created yet
+
+  shared_ptr<UdpChannel> channel1 = factory.createChannel("::1", "20070");
+  channel1->listen(bind(&EndToEndFixture::channel1_onFaceCreated,   this, _1),
+                   bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));
+
+  Interest interest1("ndn:/TpnzGvW9R");
+  Data     data1    ("ndn:/KfczhUqVix");
+  data1.setContent(0, 0);
+  Interest interest2("ndn:/QWiIMfj5sL");
+  Data     data2    ("ndn:/XNBV796f");
+  data2.setContent(0, 0);
+  Interest interest3("ndn:/QWiIhjgkj5sL");
+  Data     data3    ("ndn:/XNBV794f");
+  data3.setContent(0, 0);
+
+
+  ndn::SignatureSha256WithRsa fakeSignature;
+  fakeSignature.setValue(ndn::dataBlock(tlv::SignatureValue,
+                                        reinterpret_cast<const uint8_t*>(0),
+                                        0));
+
+  // set fake signature on data1 and data2
+  data1.setSignature(fakeSignature);
+  data2.setSignature(fakeSignature);
+  data3.setSignature(fakeSignature);
+
+  face2->sendInterest(interest2);
+  face2->sendData    (data2    );
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(3,//2 send + 1 listen return
+                      time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+
+  BOOST_REQUIRE(static_cast<bool>(face1));
+  BOOST_CHECK_EQUAL(face1->getRemoteUri().toString(), "udp6://[::1]:20071");
+  BOOST_CHECK_EQUAL(face1->getLocalUri().toString(), "udp6://[::1]:20070");
+  BOOST_CHECK_EQUAL(face1->isLocal(), false);
+
+  face1->sendInterest(interest1);
+  face1->sendData    (data1    );
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+
+
+  BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 1);
+  BOOST_REQUIRE_EQUAL(face1_receivedDatas    .size(), 1);
+  BOOST_REQUIRE_EQUAL(face2_receivedInterests.size(), 1);
+  BOOST_REQUIRE_EQUAL(face2_receivedDatas    .size(), 1);
+
+  BOOST_CHECK_EQUAL(face1_receivedInterests[0].getName(), interest2.getName());
+  BOOST_CHECK_EQUAL(face1_receivedDatas    [0].getName(), data2.getName());
+  BOOST_CHECK_EQUAL(face2_receivedInterests[0].getName(), interest1.getName());
+  BOOST_CHECK_EQUAL(face2_receivedDatas    [0].getName(), data1.getName());
+
+
+
+  //checking if the connection accepting mechanism works properly.
+
+  face2->sendData    (data3    );
+  face2->sendInterest(interest3);
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+
+  BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 2);
+  BOOST_REQUIRE_EQUAL(face1_receivedDatas    .size(), 2);
+
+  BOOST_CHECK_EQUAL(face1_receivedInterests[1].getName(), interest3.getName());
+  BOOST_CHECK_EQUAL(face1_receivedDatas    [1].getName(), data3.getName());
+}
+
+BOOST_FIXTURE_TEST_CASE(MultipleAccepts, EndToEndFixture)
+{
+  Interest interest1("ndn:/TpnzGvW9R");
+  Interest interest2("ndn:/QWiIMfj5sL");
+
+  UdpFactory factory;
+
+  shared_ptr<UdpChannel> channel1 = factory.createChannel("127.0.0.1", "20070");
+  shared_ptr<UdpChannel> channel2 = factory.createChannel("127.0.0.1", "20071");
+
+  channel1->listen(bind(&EndToEndFixture::channel_onFaceCreated,   this, _1),
+                   bind(&EndToEndFixture::channel_onConnectFailed, this, _1));
+
+  channel2->connect("127.0.0.1", "20070",
+                    bind(&EndToEndFixture::channel2_onFaceCreated, this, _1),
+                    bind(&EndToEndFixture::channel_onConnectFailed, this, _1));
+
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(4)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot connect or cannot accept connection");
+
+  BOOST_CHECK_EQUAL(faces.size(), 1);
+
+  shared_ptr<UdpChannel> channel3 = factory.createChannel("127.0.0.1", "20072");
+  channel3->connect("127.0.0.1", "20070",
+                    bind(&EndToEndFixture::channel3_onFaceCreated, this, _1),
+                    bind(&EndToEndFixture::channel_onConnectFailed, this, _1));
+
+  shared_ptr<UdpChannel> channel4 = factory.createChannel("127.0.0.1", "20073");
+
+  BOOST_CHECK_NE(channel3, channel4);
+
+  scheduler::schedule(time::milliseconds(500),
+           bind(&UdpChannel::connect, channel4, "127.0.0.1", "20070",
+                // does not work without static_cast
+                static_cast<UdpChannel::FaceCreatedCallback>(
+                    bind(&EndToEndFixture::channel_onFaceCreated, this, _1)),
+                static_cast<UdpChannel::ConnectFailedCallback>(
+                    bind(&EndToEndFixture::channel_onConnectFailed, this, _1))));
+
+  scheduler::schedule(time::milliseconds(400), bind(&EndToEndFixture::checkFaceList, this, 2));
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(2,// 2 connects
+                      time::seconds(4)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot connect or cannot accept multiple connections");
+
+  BOOST_CHECK_EQUAL(faces.size(), 3);
+
+
+  face2->sendInterest(interest1);
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+
+  BOOST_CHECK_EQUAL(faces.size(), 4);
+
+  face3->sendInterest(interest2);
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+
+  //channel1 should have created 2 faces, one when face2 sent an interest, one when face3 sent an interest
+  BOOST_CHECK_EQUAL(faces.size(), 5);
+  BOOST_CHECK_THROW(channel1->listen(bind(&EndToEndFixture::channel_onFaceCreated,     this, _1),
+                                     bind(&EndToEndFixture::channel_onConnectFailedOk, this, _1)),
+                    UdpChannel::Error);
+}
+
+//Test commented because it required to be run in a machine that can resolve ipv6 query
+//BOOST_FIXTURE_TEST_CASE(EndToEndIpv6, EndToEndFixture)
+//{
+//  UdpFactory factory = UdpFactory();
+//  Scheduler scheduler(g_io); // to limit the amount of time the test may take
+//
+//  EventId abortEvent =
+//  scheduler.scheduleEvent(time::seconds(1),
+//                          bind(&EndToEndFixture::abortTestCase, this,
+//                              "UdpChannel error: cannot connect or cannot accept connection"));
+//
+//  limitedIoRemaining = 1;
+//
+//  shared_ptr<UdpChannel> channel1 = factory.createChannel("::1", "20070");
+//  shared_ptr<UdpChannel> channel2 = factory.createChannel("::1", "20071");
+//
+//  channel1->listen(bind(&EndToEndFixture::channel1_onFaceCreated,   this, _1),
+//                   bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));
+//
+//  channel2->connect("::1", "20070",
+//                    bind(&EndToEndFixture::channel2_onFaceCreated, this, _1),
+//                    bind(&EndToEndFixture::channel2_onConnectFailed, this, _1));
+//  g_io.run();
+//  g_io.reset();
+//  scheduler.cancelEvent(abortEvent);
+//
+//  BOOST_REQUIRE(static_cast<bool>(face2));
+//
+//  abortEvent =
+//  scheduler.scheduleEvent(time::seconds(1),
+//                          bind(&EndToEndFixture::abortTestCase, this,
+//                               "UdpChannel error: cannot send or receive Interest/Data packets"));
+//
+//  Interest interest1("ndn:/TpnzGvW9R");
+//  Data     data1    ("ndn:/KfczhUqVix");
+//  data1.setContent(0, 0);
+//  Interest interest2("ndn:/QWiIMfj5sL");
+//  Data     data2    ("ndn:/XNBV796f");
+//  data2.setContent(0, 0);
+//  Interest interest3("ndn:/QWiIhjgkj5sL");
+//  Data     data3    ("ndn:/XNBV794f");
+//  data3.setContent(0, 0);
+//
+//  ndn::SignatureSha256WithRsa fakeSignature;
+//  fakeSignature.setValue(ndn::dataBlock(tlv::SignatureValue, reinterpret_cast<const uint8_t*>(0), 0));
+//
+//  // set fake signature on data1 and data2
+//  data1.setSignature(fakeSignature);
+//  data2.setSignature(fakeSignature);
+//  data3.setSignature(fakeSignature);
+//
+//  face2->sendInterest(interest2);
+//  face2->sendData    (data2    );
+//
+//  limitedIoRemaining = 3; //2 send + 1 listen return
+//  g_io.run();
+//  g_io.reset();
+//  scheduler.cancelEvent(abortEvent);
+//
+//  BOOST_REQUIRE(static_cast<bool>(face1));
+//
+//  face1->sendInterest(interest1);
+//  face1->sendData    (data1    );
+//
+//  abortEvent =
+//  scheduler.scheduleEvent(time::seconds(1),
+//                          bind(&EndToEndFixture::abortTestCase, this,
+//                               "UdpChannel error: cannot send or receive Interest/Data packets"));
+//  limitedIoRemaining = 2;
+//  g_io.run();
+//  g_io.reset();
+//  scheduler.cancelEvent(abortEvent);
+//
+//  BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 1);
+//  BOOST_REQUIRE_EQUAL(face1_receivedDatas    .size(), 1);
+//  BOOST_REQUIRE_EQUAL(face2_receivedInterests.size(), 1);
+//  BOOST_REQUIRE_EQUAL(face2_receivedDatas    .size(), 1);
+//
+//  BOOST_CHECK_EQUAL(face1_receivedInterests[0].getName(), interest2.getName());
+//  BOOST_CHECK_EQUAL(face1_receivedDatas    [0].getName(), data2.getName());
+//  BOOST_CHECK_EQUAL(face2_receivedInterests[0].getName(), interest1.getName());
+//  BOOST_CHECK_EQUAL(face2_receivedDatas    [0].getName(), data1.getName());
+//
+//  //checking if the connection accepting mechanism works properly.
+//
+//  face2->sendData    (data3    );
+//  face2->sendInterest(interest3);
+//
+//  abortEvent =
+//  scheduler.scheduleEvent(time::seconds(1),
+//                          bind(&EndToEndFixture::abortTestCase, this,
+//                               "UdpChannel error: cannot send or receive Interest/Data packets"));
+//  limitedIoRemaining = 2;
+//  g_io.run();
+//  g_io.reset();
+//  scheduler.cancelEvent(abortEvent);
+//
+//  BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 2);
+//  BOOST_REQUIRE_EQUAL(face1_receivedDatas    .size(), 2);
+//
+//  BOOST_CHECK_EQUAL(face1_receivedInterests[1].getName(), interest3.getName());
+//  BOOST_CHECK_EQUAL(face1_receivedDatas    [1].getName(), data3.getName());
+//
+//}
+
+
+//Test commented because it required to be run in a machine that can resolve ipv6 query
+//BOOST_FIXTURE_TEST_CASE(MultipleAcceptsIpv6, EndToEndFixture)
+//{
+//  Interest interest1("ndn:/TpnzGvW9R");
+//  Interest interest2("ndn:/QWiIMfj5sL");
+//  Interest interest3("ndn:/QWiIhjgkj5sL");
+//
+//  UdpFactory factory = UdpFactory();
+//  Scheduler scheduler(g_io); // to limit the amount of time the test may take
+//
+//  EventId abortEvent =
+//  scheduler.scheduleEvent(time::seconds(4),
+//                          bind(&EndToEndFixture::abortTestCase, this,
+//                               "UdpChannel error: cannot connect or cannot accept connection"));
+//
+//  shared_ptr<UdpChannel> channel1 = factory.createChannel("::1", "20070");
+//  shared_ptr<UdpChannel> channel2 = factory.createChannel("::1", "20071");
+//
+//  channel1->listen(bind(&EndToEndFixture::channel_onFaceCreated,   this, _1),
+//                   bind(&EndToEndFixture::channel_onConnectFailed, this, _1));
+//
+//  channel2->connect("::1", "20070",
+//                    bind(&EndToEndFixture::channel2_onFaceCreated, this, _1),
+//                    bind(&EndToEndFixture::channel_onConnectFailed, this, _1));
+//
+//  limitedIoRemaining = 1;
+//  g_io.run();
+//  g_io.reset();
+//  scheduler.cancelEvent(abortEvent);
+//
+//  BOOST_CHECK_EQUAL(faces.size(), 1);
+//
+//  shared_ptr<UdpChannel> channel3 = factory.createChannel("::1", "20072");
+//  channel3->connect("::1", "20070",
+//                    bind(&EndToEndFixture::channel3_onFaceCreated, this, _1),
+//                    bind(&EndToEndFixture::channel_onConnectFailed, this, _1));
+//
+//  shared_ptr<UdpChannel> channel4 = factory.createChannel("::1", "20073");
+//
+//  BOOST_CHECK_NE(channel3, channel4);
+//
+//  scheduler
+//  .scheduleEvent(time::milliseconds(500),
+//                 bind(&UdpChannel::connect, channel4,
+//                      "::1", "20070",
+//                      static_cast<UdpChannel::FaceCreatedCallback>(bind(&EndToEndFixture::
+//                                                                        channel_onFaceCreated, this, _1)),
+//                      static_cast<UdpChannel::ConnectFailedCallback>(bind(&EndToEndFixture::
+//                                                                          channel_onConnectFailed, this, _1))));
+//
+//  limitedIoRemaining = 2; // 2 connects
+//  abortEvent =
+//  scheduler.scheduleEvent(time::seconds(4),
+//                          bind(&EndToEndFixture::abortTestCase, this,
+//                               "UdpChannel error: cannot connect or cannot accept multiple connections"));
+//
+//  scheduler.scheduleEvent(time::seconds(0.4),
+//                          bind(&EndToEndFixture::checkFaceList, this, 2));
+//
+//  g_io.run();
+//  g_io.reset();
+//
+//  BOOST_CHECK_EQUAL(faces.size(), 3);
+//
+//
+//  face2->sendInterest(interest1);
+//  abortEvent =
+//  scheduler.scheduleEvent(time::seconds(1),
+//                          bind(&EndToEndFixture::abortTestCase, this,
+//                               "UdpChannel error: cannot send or receive Interest/Data packets"));
+//  limitedIoRemaining = 1;
+//  g_io.run();
+//  g_io.reset();
+//  scheduler.cancelEvent(abortEvent);
+//
+//  BOOST_CHECK_EQUAL(faces.size(), 4);
+//
+//  face3->sendInterest(interest2);
+//  abortEvent =
+//  scheduler.scheduleEvent(time::seconds(1),
+//                          bind(&EndToEndFixture::abortTestCase, this,
+//                               "UdpChannel error: cannot send or receive Interest/Data packets"));
+//  limitedIoRemaining = 1;
+//  g_io.run();
+//  g_io.reset();
+//  scheduler.cancelEvent(abortEvent);
+//
+//  //channel1 should have created 2 faces, one when face2 sent an interest, one when face3 sent an interest
+//  BOOST_CHECK_EQUAL(faces.size(), 5);
+//  BOOST_CHECK_THROW(channel1->listen(bind(&EndToEndFixture::channel_onFaceCreated,
+//                                          this,
+//                                          _1),
+//                                      bind(&EndToEndFixture::channel_onConnectFailedOk,
+//                                          this,
+//                                          _1)),
+//                    UdpChannel::Error);
+//}
+
+
+BOOST_FIXTURE_TEST_CASE(FaceClosing, EndToEndFixture)
+{
+  UdpFactory factory = UdpFactory();
+
+  shared_ptr<UdpChannel> channel1 = factory.createChannel("127.0.0.1", "20070");
+  shared_ptr<UdpChannel> channel2 = factory.createChannel("127.0.0.1", "20071");
+
+  channel1->listen(bind(&EndToEndFixture::channel1_onFaceCreated,   this, _1),
+                   bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));
+
+  channel2->connect("127.0.0.1", "20070",
+                    bind(&EndToEndFixture::channel2_onFaceCreated, this, _1),
+                    bind(&EndToEndFixture::channel2_onConnectFailed, this, _1));
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(4)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot connect or cannot accept connection");
+
+  BOOST_CHECK_EQUAL(channel2->size(), 1);
+
+  BOOST_CHECK(static_cast<bool>(face2));
+
+  // Face::close must be invoked during io run to be counted as an op
+  scheduler::schedule(time::milliseconds(100), bind(&Face::close, face2));
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(4)) == LimitedIo::EXCEED_OPS,
+                      "FaceClosing error: cannot properly close faces");
+
+  BOOST_CHECK(!static_cast<bool>(face2));
+
+  BOOST_CHECK_EQUAL(channel2->size(), 0);
+}
+
+BOOST_FIXTURE_TEST_CASE(ClosingIdleFace, EndToEndFixture)
+{
+  Interest interest1("ndn:/TpnzGvW9R");
+  Interest interest2("ndn:/QWiIMfj5sL");
+
+  UdpFactory factory;
+
+  shared_ptr<UdpChannel> channel1 = factory.createChannel("127.0.0.1", "20070",
+                                                          time::seconds(2));
+  shared_ptr<UdpChannel> channel2 = factory.createChannel("127.0.0.1", "20071",
+                                                          time::seconds(2));
+
+  channel1->listen(bind(&EndToEndFixture::channel1_onFaceCreated,   this, _1),
+                   bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));
+
+  channel2->connect("127.0.0.1", "20070",
+                    bind(&EndToEndFixture::channel2_onFaceCreated, this, _1),
+                    bind(&EndToEndFixture::channel2_onConnectFailed, this, _1));
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(4)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot connect or cannot accept connection");
+
+  face2->sendInterest(interest1);
+  BOOST_CHECK(!face2->isOnDemand());
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(2,//1 send + 1 listen return
+                                      time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+
+  BOOST_CHECK_EQUAL(faces.size(), 2);
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(2)) == LimitedIo::EXCEED_TIME,
+                      "Idle face should be still open because has been used recently");
+  BOOST_CHECK_EQUAL(faces.size(), 2);
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(4)) == LimitedIo::EXCEED_OPS,
+                      "Closing idle face error: face should be closed by now");
+
+  //the face on listen should be closed now
+  BOOST_CHECK_EQUAL(channel1->size(), 0);
+  //checking that face2 has not been closed
+  BOOST_CHECK_EQUAL(channel2->size(), 1);
+  BOOST_REQUIRE(static_cast<bool>(face2));
+
+  face2->sendInterest(interest2);
+  BOOST_CHECK_MESSAGE(limitedIo.run(2,//1 send + 1 listen return
+                                      time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot send or receive Interest/Data packets");
+  //channel1 should have created a new face by now
+  BOOST_CHECK_EQUAL(channel1->size(), 1);
+  BOOST_CHECK_EQUAL(channel2->size(), 1);
+  BOOST_REQUIRE(static_cast<bool>(face1));
+  BOOST_CHECK(face1->isOnDemand());
+
+  channel1->connect("127.0.0.1", "20071",
+                    bind(&EndToEndFixture::channel1_onFaceCreatedNoCheck, this, _1),
+                    bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));
+
+  BOOST_CHECK_MESSAGE(limitedIo.run(1,//1 connect
+                                      time::seconds(1)) == LimitedIo::EXCEED_OPS,
+                      "UdpChannel error: cannot connect");
+
+  BOOST_CHECK(!face1->isOnDemand());
+
+  //the connect should have set face1 as permanent face,
+  //but it shouln't have created any additional faces
+  BOOST_CHECK_EQUAL(channel1->size(), 1);
+  BOOST_CHECK_EQUAL(channel2->size(), 1);
+  BOOST_CHECK_MESSAGE(limitedIo.run(1, time::seconds(4)) == LimitedIo::EXCEED_TIME,
+                      "Idle face should be still open because it's permanent now");
+  //both faces are permanent, nothing should have changed
+  BOOST_CHECK_EQUAL(channel1->size(), 1);
+  BOOST_CHECK_EQUAL(channel2->size(), 1);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace nfd