merge with HEAD
authorMathieu Lacage <mathieu.lacage@sophia.inria.fr>
Fri, 16 Nov 2007 08:48:57 +0100
changeset 2132 b6599fb46d19
parent 2131 a43aabcfa388 (current diff)
parent 1857 461e19fae49c (diff)
child 2133 df077fb96353
merge with HEAD
doc/doxygen.conf
src/mobility/random-direction-2d-mobility-model.h
src/mobility/random-position.h
src/mobility/random-walk-2d-mobility-model.h
src/mobility/random-waypoint-mobility-model.h
tutorial/tutorial-naive-dumbbell.cc
utils/wscript
wscript
--- a/.hgtags	Thu Nov 15 16:34:53 2007 +0100
+++ b/.hgtags	Fri Nov 16 08:48:57 2007 +0100
@@ -7,3 +7,4 @@
 267e2ebc28e4e4ae2f579e1cfc29902acade0c34 buffer-working-before-breaking
 606df29888e7573b825fc891a002f0757166b616 release ns-3.0.6
 36472385a1cc7c44d34fb7a5951b930010f4e8d2 release ns-3.0.7
+560a5091e0e6ded47d269e2f2dee780f13950a63 release ns-3.0.8
--- a/RELEASE_NOTES	Thu Nov 15 16:34:53 2007 +0100
+++ b/RELEASE_NOTES	Fri Nov 16 08:48:57 2007 +0100
@@ -3,6 +3,11 @@
 
 This file contains ns-3 release notes (most recent releases first).
 
+Release 3.0.8 (2007/11/15)
+========================
+   - A simple error model
+   - Source files for ns-3 tutorial
+
 Release 3.0.7 (2007/10/15)
 ========================
   - OLSR routing protocol
--- a/VERSION	Thu Nov 15 16:34:53 2007 +0100
+++ b/VERSION	Fri Nov 16 08:48:57 2007 +0100
@@ -1,1 +1,1 @@
-3.0.7
+3.0.8
--- a/src/node/drop-tail-queue.cc	Thu Nov 15 16:34:53 2007 +0100
+++ b/src/node/drop-tail-queue.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -111,4 +111,69 @@
   return true;
 }
 
+} // namespace ns3
+
+
+#ifdef RUN_SELF_TESTS
+
+#include "ns3/test.h"
+
+namespace ns3 {
+
+class DropTailQueueTest: public Test {
+public:
+  virtual bool RunTests (void);
+  DropTailQueueTest ();
+};
+
+
+DropTailQueueTest::DropTailQueueTest ()
+  : Test ("DropTailQueue") {}
+
+
+bool
+DropTailQueueTest::RunTests (void)
+{
+  bool result = true;
+
+  DropTailQueue queue;
+  queue.SetMaxPackets (3);
+  
+  Packet p1, p2, p3, p4;
+
+  NS_TEST_ASSERT_EQUAL (queue.GetNPackets (), 0);
+  queue.Enqueue (p1);
+  NS_TEST_ASSERT_EQUAL (queue.GetNPackets (), 1);
+  queue.Enqueue (p2);
+  NS_TEST_ASSERT_EQUAL (queue.GetNPackets (), 2);
+  queue.Enqueue (p3);
+  NS_TEST_ASSERT_EQUAL (queue.GetNPackets (), 3);
+  queue.Enqueue (p4); // will be dropped
+  NS_TEST_ASSERT_EQUAL (queue.GetNPackets (), 3);
+
+  Packet p;
+
+  NS_TEST_ASSERT (queue.Dequeue (p));
+  NS_TEST_ASSERT_EQUAL (queue.GetNPackets (), 2);
+  NS_TEST_ASSERT_EQUAL (p.GetUid (), p1.GetUid ());
+
+  NS_TEST_ASSERT (queue.Dequeue (p));
+  NS_TEST_ASSERT_EQUAL (queue.GetNPackets (), 1);
+  NS_TEST_ASSERT_EQUAL (p.GetUid (), p2.GetUid ());
+
+  NS_TEST_ASSERT (queue.Dequeue (p));
+  NS_TEST_ASSERT_EQUAL (queue.GetNPackets (), 0);
+  NS_TEST_ASSERT_EQUAL (p.GetUid (), p3.GetUid ());
+
+  NS_TEST_ASSERT (!queue.Dequeue (p));
+
+  return result;
+}
+
+
+static DropTailQueueTest gDropTailQueueTest;
+
 }; // namespace ns3
+
+#endif /* RUN_SELF_TESTS */
+
--- a/src/node/packet-socket.cc	Thu Nov 15 16:34:53 2007 +0100
+++ b/src/node/packet-socket.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -222,22 +222,26 @@
   PacketSocketAddress ad;
   if (m_state == STATE_CLOSED)
     {
+      NS_LOG_LOGIC ("ERROR_BADF");
       m_errno = ERROR_BADF;
       return -1;
     }
   if (m_state == STATE_OPEN)
     {
       // XXX should return another error here.
+      NS_LOG_LOGIC ("ERROR_INVAL");
       m_errno = ERROR_INVAL;
       return -1;
     }
   if (m_shutdownSend)
     {
+      NS_LOG_LOGIC ("ERROR_SHUTDOWN");
       m_errno = ERROR_SHUTDOWN;
       return -1;
     }
   if (!PacketSocketAddress::IsMatchingType (address))
     {
+      NS_LOG_LOGIC ("ERROR_AFNOSUPPORT");
       m_errno = ERROR_AFNOSUPPORT;
       return -1;
     }
@@ -250,6 +254,7 @@
       Ptr<NetDevice> device = m_node->GetDevice (ad.GetSingleDevice ());
       if (!device->Send (p, dest, ad.GetProtocol ()))
         {
+          NS_LOG_LOGIC ("error: NetDevice::Send error");
           error = true;
         }
     }
@@ -260,6 +265,7 @@
           Ptr<NetDevice> device = m_node->GetDevice (i);
           if (!device->Send (p, dest, ad.GetProtocol ()))
             {
+              NS_LOG_LOGIC ("error: NetDevice::Send error");
               error = true;
             }
         }
@@ -271,6 +277,7 @@
 
   if (error)
     {
+      NS_LOG_LOGIC ("ERROR_INVAL 2");
       m_errno = ERROR_INVAL;
       return -1;
     }
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/ipv4-address-generator.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,255 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 University of Washington
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/assert.h"
+#include "ns3/log.h"
+#include "ns3/simulation-singleton.h"
+#include "ipv4-address-generator.h"
+
+NS_LOG_COMPONENT_DEFINE("Ipv4AddressGenerator");
+
+namespace ns3 {
+
+class Ipv4NetworkGeneratorImpl
+{
+public:
+  Ipv4NetworkGeneratorImpl ();
+  virtual ~Ipv4NetworkGeneratorImpl ();
+
+  Ipv4Address Allocate (const Ipv4Mask mask);
+  void Seed (const Ipv4Mask mask, const Ipv4Address network);
+
+private:
+  static const uint32_t N_BITS = 32;
+  class State
+  {
+  public:
+    uint32_t mask;
+    uint32_t network;
+  };
+  State m_state[N_BITS];
+};
+
+Ipv4NetworkGeneratorImpl::Ipv4NetworkGeneratorImpl () 
+{
+  NS_LOG_FUNCTION;
+
+  uint32_t mask = 0;
+
+  for (uint32_t i = 0; i < N_BITS; ++i)
+    {
+      m_state[i].mask = mask;
+      mask >>= 1;
+      mask |= 0x80000000;
+      m_state[i].network = 0;
+      NS_LOG_LOGIC ("m_state[" << i << "]");
+      NS_LOG_LOGIC ("mask = " << std::hex << m_state[i].mask);
+      NS_LOG_LOGIC ("network = " << std::hex << m_state[i].network);
+    }
+}
+
+Ipv4NetworkGeneratorImpl::~Ipv4NetworkGeneratorImpl ()
+{
+  NS_LOG_FUNCTION;
+}
+
+  void
+Ipv4NetworkGeneratorImpl::Seed (
+  const Ipv4Mask mask, 
+  const Ipv4Address network)
+{
+  NS_LOG_FUNCTION;
+
+  uint32_t maskBits = mask.GetHostOrder ();
+  uint32_t networkBits = network.GetHostOrder ();
+
+  for (uint32_t i = 0; i < N_BITS; ++i)
+    {
+      if (maskBits & 1)
+        {
+          uint32_t nMaskBits = N_BITS - i;
+          NS_ASSERT(nMaskBits >= 0 && nMaskBits < N_BITS);
+          m_state[nMaskBits].network = networkBits >> (N_BITS - i);
+          return;
+        }
+      maskBits >>= 1;
+    }
+  NS_ASSERT_MSG(false, "Impossible");
+  return;
+}
+
+  Ipv4Address
+Ipv4NetworkGeneratorImpl::Allocate (const Ipv4Mask mask)
+{
+  NS_LOG_FUNCTION;
+
+  uint32_t bits = mask.GetHostOrder ();
+
+  for (uint32_t i = 0; i < N_BITS; ++i)
+    {
+      if (bits & 1)
+        {
+          uint32_t nBits = N_BITS - i;
+          NS_ASSERT(nBits >= 0 && nBits < N_BITS);
+          Ipv4Address addr (m_state[nBits].network << i);
+          ++m_state[nBits].network;
+          return addr;
+        }
+      bits >>= 1;
+    }
+  NS_ASSERT_MSG(false, "Impossible");
+  return Ipv4Address (bits);
+}
+
+class Ipv4AddressGeneratorImpl
+{
+public:
+  Ipv4AddressGeneratorImpl ();
+  virtual ~Ipv4AddressGeneratorImpl ();
+
+  Ipv4Address Allocate (const Ipv4Mask mask, const Ipv4Address network);
+  void Seed (const Ipv4Mask mask, const Ipv4Address address);
+
+private:
+  static const uint32_t N_BITS = 32;
+  class State
+  {
+  public:
+    uint32_t mask;
+    uint32_t address;
+  };
+  State m_state[N_BITS];
+};
+
+Ipv4AddressGeneratorImpl::Ipv4AddressGeneratorImpl () 
+{
+  NS_LOG_FUNCTION;
+
+  uint32_t mask = 0;
+
+  for (uint32_t i = 0; i < N_BITS; ++i)
+    {
+      m_state[i].mask = mask;
+      mask >>= 1;
+      mask |= 0x80000000;
+      m_state[i].address = 0;
+      NS_LOG_LOGIC ("m_state[" << i << "]");
+      NS_LOG_LOGIC ("mask = " << std::hex << m_state[i].mask);
+      NS_LOG_LOGIC ("address = " << std::hex << m_state[i].address);
+    }
+}
+
+Ipv4AddressGeneratorImpl::~Ipv4AddressGeneratorImpl ()
+{
+  NS_LOG_FUNCTION;
+}
+
+  void
+Ipv4AddressGeneratorImpl::Seed (
+  const Ipv4Mask mask, 
+  const Ipv4Address address)
+{
+  NS_LOG_FUNCTION;
+
+  uint32_t maskBits = mask.GetHostOrder ();
+  uint32_t addressBits = address.GetHostOrder ();
+
+  for (uint32_t i = 0; i < N_BITS; ++i)
+    {
+      if (maskBits & 1)
+        {
+          uint32_t nMaskBits = N_BITS - i;
+          NS_ASSERT(nMaskBits >= 0 && nMaskBits < N_BITS);
+          m_state[nMaskBits].address = addressBits;
+          return;
+        }
+      maskBits >>= 1;
+    }
+  NS_ASSERT_MSG(false, "Impossible");
+  return;
+}
+
+  Ipv4Address
+Ipv4AddressGeneratorImpl::Allocate (
+  const Ipv4Mask mask,
+  const Ipv4Address network)
+{
+  NS_LOG_FUNCTION;
+
+  uint32_t bits = mask.GetHostOrder ();
+  uint32_t net = network.GetHostOrder ();
+
+  for (uint32_t i = 0; i < N_BITS; ++i)
+    {
+      if (bits & 1)
+        {
+          uint32_t nBits = N_BITS - i;
+          NS_ASSERT(nBits >= 0 && nBits < N_BITS);
+          Ipv4Address addr (net | m_state[nBits].address);
+          ++m_state[nBits].address;
+          NS_ASSERT_MSG((m_state[nBits].mask & m_state[nBits].address) == 0, 
+            "Ipv4AddressGeneratorImpl::Allocate(): Overflow");
+          return addr;
+        }
+      bits >>= 1;
+    }
+  NS_ASSERT_MSG(false, "Impossible");
+  return Ipv4Address (bits);
+}
+
+  void
+Ipv4AddressGenerator::SeedAddress (
+  const Ipv4Mask mask, 
+  const Ipv4Address address)
+{
+  NS_LOG_FUNCTION;
+
+  SimulationSingleton<Ipv4AddressGeneratorImpl>::Get ()->Seed (mask, address);
+}
+
+  Ipv4Address
+Ipv4AddressGenerator::AllocateAddress (
+  const Ipv4Mask mask, 
+  const Ipv4Address network)
+{
+  NS_LOG_FUNCTION;
+
+  return SimulationSingleton<Ipv4AddressGeneratorImpl>::Get ()->
+    Allocate (mask, network);
+}
+
+  void
+Ipv4AddressGenerator::SeedNetwork (
+  const Ipv4Mask mask,
+  const Ipv4Address address)
+{
+  NS_LOG_FUNCTION;
+
+  SimulationSingleton<Ipv4NetworkGeneratorImpl>::Get ()->Seed (mask, address);
+}
+
+  Ipv4Address
+Ipv4AddressGenerator::AllocateNetwork (const Ipv4Mask mask)
+{
+  NS_LOG_FUNCTION;
+
+  return SimulationSingleton<Ipv4NetworkGeneratorImpl>::Get ()->
+    Allocate (mask);
+}
+
+}; // namespace ns3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/ipv4-address-generator.h	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,45 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 University of Washington
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef IPV4_ADDRESS_GENERATOR_H
+#define IPV4_ADDRESS_GENERATOR_H
+
+#include <stdint.h>
+#include <ostream>
+
+#include "ns3/ipv4-address.h"
+
+namespace ns3 {
+
+class Ipv4AddressGenerator {
+public:
+  static void SeedAddress (const Ipv4Mask mask, 
+    const Ipv4Address address);
+
+  static Ipv4Address AllocateAddress (const Ipv4Mask mask, 
+    const Ipv4Address network);
+
+  static void SeedNetwork (const Ipv4Mask mask, 
+    const Ipv4Address address);
+
+  static Ipv4Address AllocateNetwork (const Ipv4Mask mask);
+};
+
+}; // namespace ns3
+
+#endif /* IPV4_ADDRESS_GENERATOR_H */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/ipv4-bus-network.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,79 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 University of Washington
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/mac48-address.h"
+#include "ns3/csma-net-device.h"
+#include "ns3/csma-topology.h"
+#include "ns3/csma-ipv4-topology.h"
+
+#include "ipv4-bus-network.h"
+#include "ipv4-address-generator.h"
+
+namespace ns3 {
+
+Ipv4Network::Ipv4Network (
+  Ipv4Address   network, 
+  Ipv4Mask      mask, 
+  Ipv4Address   address)
+: 
+  m_network (network), m_mask (mask), m_baseAddress (address)
+{
+}
+
+Ipv4Network::~Ipv4Network ()
+{
+}
+
+Ipv4BusNetwork::Ipv4BusNetwork (
+  Ipv4Address   network, 
+  Ipv4Mask      mask, 
+  Ipv4Address   baseAddress, 
+  DataRate      bps, 
+  Time          delay, 
+  uint32_t      n)
+: 
+  Ipv4Network (network, mask, baseAddress)
+{
+  Ipv4AddressGenerator::SeedNetwork (mask, network);
+  Ipv4AddressGenerator::SeedAddress (mask, baseAddress);
+
+  m_channel = CsmaTopology::CreateCsmaChannel (bps, delay);
+
+  for (uint32_t i = 0; i < n; ++i)
+    {
+      Ptr<Node> node = Create<InternetNode> ();
+      uint32_t nd = CsmaIpv4Topology::AddIpv4CsmaNetDevice (node, m_channel, 
+        Mac48Address::Allocate ());
+      Ipv4Address address = Ipv4AddressGenerator::AllocateAddress (mask, 
+        network);
+      CsmaIpv4Topology::AddIpv4Address (node, nd, address, mask);
+      m_nodes.push_back (node);
+    }
+}
+
+Ipv4BusNetwork::~Ipv4BusNetwork ()
+{
+}
+
+  Ptr<Node>
+Ipv4BusNetwork::GetNode (uint32_t n)
+{
+  return m_nodes[n];
+}
+
+}; // namespace ns3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/ipv4-bus-network.h	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,64 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 University of Washington
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef IPV4_BUS_NETWORK_H
+#define IPV4_BUS_NETWORK_H
+
+#include <list>
+#include "ns3/ptr.h"
+#include "ns3/node.h"
+#include "ns3/ipv4-address.h"
+#include "ns3/data-rate.h"
+#include "ns3/csma-channel.h"
+
+namespace ns3 {
+
+class Ipv4Network
+{
+public:
+  Ipv4Network (Ipv4Address network, Ipv4Mask mask, Ipv4Address address);
+  virtual ~Ipv4Network ();
+
+  Ipv4Address m_network;
+  Ipv4Mask m_mask;
+  Ipv4Address m_baseAddress;
+};
+
+class Ipv4BusNetwork : public Ipv4Network
+{
+public:
+  Ipv4BusNetwork (
+    Ipv4Address   network, 
+    Ipv4Mask      mask, 
+    Ipv4Address   baseAddress, 
+    DataRate      bps, 
+    Time          delay, 
+    uint32_t      n);
+
+  virtual ~Ipv4BusNetwork ();
+
+  Ptr<Node> GetNode (uint32_t n);
+
+private:
+  std::vector<Ptr<Node> > m_nodes;
+  Ptr<CsmaChannel> m_channel;
+};
+
+}; // namespace ns3
+
+#endif /* IPV4_BUS_NETWORK_H */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/point-to-point-ipv4-topology.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,73 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/assert.h"
+#include "ns3/log.h"
+#include "ns3/nstime.h"
+#include "ns3/internet-node.h"
+#include "ns3/ipv4-address.h"
+#include "ns3/ipv4.h"
+#include "ns3/queue.h"
+
+#include "ns3/point-to-point-channel.h"
+#include "ns3/point-to-point-net-device.h"
+#include "point-to-point-ipv4-topology.h"
+
+namespace ns3 {
+
+  Ptr<PointToPointChannel>
+PointToPointIpv4Topology::CreateChannel (
+  const DataRate& bps,
+  const Time& delay)
+{
+  return Create<PointToPointChannel> (bps, delay);
+}
+
+  uint32_t
+PointToPointIpv4Topology::AddNetDevice (
+  Ptr<Node> node,
+  Ptr<PointToPointChannel> channel)
+{
+  NS_ASSERT (channel->GetNDevices () <= 1);
+
+  Ptr<PointToPointNetDevice> nd = Create<PointToPointNetDevice> (node);
+
+  Ptr<Queue> q = Queue::CreateDefault ();
+  nd->AddQueue(q);
+  nd->Attach (channel);
+
+  return nd->GetIfIndex ();
+}
+
+  uint32_t
+PointToPointIpv4Topology::AddAddress (
+  Ptr<Node> node,
+  uint32_t netDeviceNumber,
+  Ipv4Address address,
+  Ipv4Mask mask)
+{
+  Ptr<NetDevice> nd = node->GetDevice(netDeviceNumber);
+  Ptr<Ipv4> ipv4 = node->QueryInterface<Ipv4> (Ipv4::iid);
+  uint32_t ifIndex = ipv4->AddInterface (nd);
+
+  ipv4->SetAddress (ifIndex, address);
+  ipv4->SetNetworkMask (ifIndex, mask);
+  ipv4->SetUp (ifIndex);
+
+  return ifIndex;
+}
+
+} // namespace ns3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/point-to-point-ipv4-topology.h	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,49 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef POINT_TO_POINT_IPV4_TOPOLOGY_H
+#define POINT_TO_POINT_IPV4_TOPOLOGY_H
+
+#include "ns3/ptr.h"
+
+namespace ns3 {
+
+class PointToPointChannel;
+class Node;
+class Ipv4Address;
+class Ipv4Mask;
+class DataRate;
+
+class PointToPointIpv4Topology {
+public:
+  static Ptr<PointToPointChannel> CreateChannel (
+    const DataRate& dataRate, const Time& delay);
+
+  static uint32_t AddNetDevice(
+    Ptr<Node> node,
+    Ptr<PointToPointChannel> channel);
+
+  static uint32_t AddAddress(
+    Ptr<Node> node,
+    uint32_t ndIndex,
+    Ipv4Address address,
+    Ipv4Mask mask);
+};
+
+} // namespace ns3
+
+#endif // POINT_TO_POINT_IPV4_TOPOLOGY_H
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/testipv4.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,62 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/log.h"
+#include "ipv4-address-generator.h"
+
+NS_LOG_COMPONENT_DEFINE ("TestIpv4");
+
+using namespace ns3;
+
+int 
+main (int argc, char *argv[])
+{
+  LogComponentEnable ("TestIpv4", LOG_LEVEL_ALL);
+
+  NS_LOG_INFO ("Test Ipv4");
+
+  Ipv4Mask mask1 ("255.0.0.0");
+
+  for (uint32_t i = 0; i < 10; ++i)
+    {
+      Ipv4Address network = Ipv4AddressGenerator::AllocateNetwork (mask1);
+      Ipv4Address address = Ipv4AddressGenerator::AllocateAddress (mask1, 
+        network);
+      NS_LOG_INFO ("address = " << address);
+    }
+
+  Ipv4Mask mask2 ("255.255.0.0");
+  Ipv4AddressGenerator::SeedNetwork (mask2, "192.168.0.0");
+  Ipv4AddressGenerator::SeedAddress (mask2, "0.0.0.3");
+
+  Ipv4Address network1 = Ipv4AddressGenerator::AllocateNetwork (mask2);
+  for (uint32_t i = 0; i < 10; ++i)
+    {
+      Ipv4Address address = Ipv4AddressGenerator::AllocateAddress (mask2, 
+        network1);
+      NS_LOG_INFO ("address = " << address);
+    }
+
+  Ipv4Mask mask3 ("255.255.255.0");
+
+  for (uint32_t i = 0; i < 10; ++i)
+    {
+      Ipv4Address network = Ipv4AddressGenerator::AllocateNetwork (mask3);
+      Ipv4Address address = Ipv4AddressGenerator::AllocateAddress (mask3, 
+        network);
+      NS_LOG_INFO ("address = " << address);
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/tutorial-bus-network.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,62 @@
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/log.h"
+#include "ns3/ipv4-address.h"
+#include "ns3/udp-echo-client.h"
+#include "ns3/udp-echo-server.h"
+#include "ns3/simulator.h"
+#include "ns3/nstime.h"
+#include "ns3/ascii-trace.h"
+
+#include "ipv4-bus-network.h"
+
+NS_LOG_COMPONENT_DEFINE ("BusNetworkSimulation");
+
+using namespace ns3;
+
+int 
+main (int argc, char *argv[])
+{
+  LogComponentEnable ("BusNetworkSimulation", LOG_LEVEL_ALL);
+
+  NS_LOG_INFO ("Bus Network Simulation");
+
+  Ipv4BusNetwork bus ("10.1.0.0", "255.255.0.0", "0.0.0.3",
+    DataRate(10000000), MilliSeconds(20), 10);
+
+  uint32_t port = 7;
+
+  Ptr<Node> n0 = bus.GetNode (0);
+  Ptr<UdpEchoClient> client = Create<UdpEchoClient> (n0, "10.1.0.1", port, 
+    1, Seconds(1.), 1024);
+
+  Ptr<Node> n1 = bus.GetNode (1);
+  Ptr<UdpEchoServer> server = Create<UdpEchoServer> (n1, port);
+
+  server->Start(Seconds(1.));
+  client->Start(Seconds(2.));
+
+  server->Stop (Seconds(10.));
+  client->Stop (Seconds(10.));
+
+  AsciiTrace asciitrace ("tutorial.tr");
+  asciitrace.TraceAllQueues ();
+  asciitrace.TraceAllNetDeviceRx ();
+
+  Simulator::Run ();
+  Simulator::Destroy ();
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/tutorial-linear-dumbbell.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,172 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/log.h"
+#include "ns3/ptr.h"
+#include "ns3/internet-node.h"
+#include "ns3/point-to-point-channel.h"
+#include "ns3/csma-channel.h"
+#include "ns3/mac48-address.h"
+#include "ns3/point-to-point-net-device.h"
+#include "ns3/csma-net-device.h"
+#include "ns3/point-to-point-topology.h"
+#include "ns3/csma-topology.h"
+#include "ns3/csma-ipv4-topology.h"
+#include "ns3/udp-echo-client.h"
+#include "ns3/udp-echo-server.h"
+#include "ns3/simulator.h"
+#include "ns3/nstime.h"
+#include "ns3/ascii-trace.h"
+#include "ns3/pcap-trace.h"
+#include "ns3/global-route-manager.h"
+
+NS_LOG_COMPONENT_DEFINE ("DumbbellSimulation");
+
+using namespace ns3;
+
+// Network topology
+//
+//                       point to point
+//                      +--------------+
+//                      |              |
+//       n0   n1   n2   n3             n4   n5   n6   n7
+//       |    |    |    |              |    |    |    |
+//       ================              ================
+//             lan1                          lan2
+//
+int 
+main (int argc, char *argv[])
+{
+  LogComponentEnable ("DumbbellSimulation", LOG_LEVEL_INFO);
+
+  NS_LOG_INFO ("Dumbbell Topology Simulation");
+//
+// Create the lan on the left side of the dumbbell.
+//
+  Ptr<Node> n0 = Create<InternetNode> ();
+  Ptr<Node> n1 = Create<InternetNode> ();
+  Ptr<Node> n2 = Create<InternetNode> ();
+  Ptr<Node> n3 = Create<InternetNode> ();
+
+  Ptr<CsmaChannel> lan1 = 
+    CsmaTopology::CreateCsmaChannel (DataRate (10000000), MilliSeconds (2));
+
+  uint32_t nd0 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n0, lan1, 
+    "08:00:2e:00:00:00");
+
+  uint32_t nd1 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n1, lan1, 
+    "08:00:2e:00:00:01");
+
+  uint32_t nd2 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n2, lan1, 
+    "08:00:2e:00:00:02");
+
+  uint32_t nd3 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n3, lan1, 
+    "08:00:2e:00:00:03");
+
+  CsmaIpv4Topology::AddIpv4Address (n0, nd0, "10.1.1.1", "255.255.255.0");
+  CsmaIpv4Topology::AddIpv4Address (n1, nd1, "10.1.1.2", "255.255.255.0");
+  CsmaIpv4Topology::AddIpv4Address (n2, nd2, "10.1.1.3", "255.255.255.0");
+  CsmaIpv4Topology::AddIpv4Address (n3, nd3, "10.1.1.4", "255.255.255.0");
+//
+// Create the lan on the right side of the dumbbell.
+//
+  Ptr<Node> n4 = Create<InternetNode> ();
+  Ptr<Node> n5 = Create<InternetNode> ();
+  Ptr<Node> n6 = Create<InternetNode> ();
+  Ptr<Node> n7 = Create<InternetNode> ();
+
+  Ptr<CsmaChannel> lan2 = 
+    CsmaTopology::CreateCsmaChannel (DataRate (10000000), MilliSeconds (2));
+
+  uint32_t nd4 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n4, lan2, 
+    "08:00:2e:00:00:04");
+
+  uint32_t nd5 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n5, lan2, 
+    "08:00:2e:00:00:05");
+
+  uint32_t nd6 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n6, lan2, 
+    "08:00:2e:00:00:06");
+
+  uint32_t nd7 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n7, lan2, 
+    "08:00:2e:00:00:07");
+
+  CsmaIpv4Topology::AddIpv4Address (n4, nd4, "10.1.2.1", "255.255.255.0");
+  CsmaIpv4Topology::AddIpv4Address (n5, nd5, "10.1.2.2", "255.255.255.0");
+  CsmaIpv4Topology::AddIpv4Address (n6, nd6, "10.1.2.3", "255.255.255.0");
+  CsmaIpv4Topology::AddIpv4Address (n7, nd7, "10.1.2.4", "255.255.255.0");
+//
+// Create the point-to-point link to connect the two lans.
+//
+  Ptr<PointToPointChannel> link = PointToPointTopology::AddPointToPointLink (
+    n3, n4, DataRate (38400), MilliSeconds (20));
+
+  PointToPointTopology::AddIpv4Addresses (link, n3, "10.1.3.1", 
+    n4, "10.1.3.2");
+//
+// Create data flows across the link:
+//   n0 ==> n4 ==> n0
+//   n1 ==> n5 ==> n1
+//   n2 ==> n6 ==> n2
+//   n3 ==> n7 ==> n3
+//
+  uint16_t port = 7;
+
+  Ptr<UdpEchoClient> client0 = Create<UdpEchoClient> (n0, "10.1.2.1", port, 
+    100, Seconds(.01), 1024);
+  Ptr<UdpEchoClient> client1 = Create<UdpEchoClient> (n1, "10.1.2.2", port, 
+    100, Seconds(.01), 1024);
+  Ptr<UdpEchoClient> client2 = Create<UdpEchoClient> (n2, "10.1.2.3", port, 
+    100, Seconds(.01), 1024);
+  Ptr<UdpEchoClient> client3 = Create<UdpEchoClient> (n3, "10.1.2.4", port, 
+    100, Seconds(.01), 1024);
+
+  Ptr<UdpEchoServer> server4 = Create<UdpEchoServer> (n4, port);
+  Ptr<UdpEchoServer> server5 = Create<UdpEchoServer> (n5, port);
+  Ptr<UdpEchoServer> server6 = Create<UdpEchoServer> (n6, port);
+  Ptr<UdpEchoServer> server7 = Create<UdpEchoServer> (n7, port);
+
+  server4->Start(Seconds(1.));
+  server5->Start(Seconds(1.));
+  server6->Start(Seconds(1.));
+  server7->Start(Seconds(1.));
+
+  client0->Start(Seconds(2.));
+  client1->Start(Seconds(2.1));
+  client2->Start(Seconds(2.2));
+  client3->Start(Seconds(2.3));
+
+  server4->Stop (Seconds(10.));
+  server5->Stop (Seconds(10.));
+  server6->Stop (Seconds(10.));
+  server7->Stop (Seconds(10.));
+
+  client0->Stop (Seconds(10.));
+  client1->Stop (Seconds(10.));
+  client2->Stop (Seconds(10.));
+  client3->Stop (Seconds(10.));
+
+  AsciiTrace asciitrace ("tutorial.tr");
+  asciitrace.TraceAllQueues ();
+  asciitrace.TraceAllNetDeviceRx ();
+
+  PcapTrace pcaptrace ("tutorial.pcap");
+  pcaptrace.TraceAllIp ();
+
+  GlobalRouteManager::PopulateRoutingTables ();
+
+  Simulator::Run ();
+  Simulator::Destroy ();
+}
--- a/tutorial/tutorial-naive-dumbbell.cc	Thu Nov 15 16:34:53 2007 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,138 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "ns3/log.h"
-#include "ns3/ptr.h"
-#include "ns3/internet-node.h"
-#include "ns3/point-to-point-channel.h"
-#include "ns3/csma-channel.h"
-#include "ns3/mac48-address.h"
-#include "ns3/point-to-point-net-device.h"
-#include "ns3/csma-net-device.h"
-#include "ns3/point-to-point-topology.h"
-#include "ns3/csma-topology.h"
-#include "ns3/csma-ipv4-topology.h"
-#include "ns3/udp-echo-client.h"
-#include "ns3/udp-echo-server.h"
-#include "ns3/simulator.h"
-#include "ns3/nstime.h"
-#include "ns3/ascii-trace.h"
-#include "ns3/pcap-trace.h"
-#include "ns3/global-route-manager.h"
-
-NS_LOG_COMPONENT_DEFINE ("DumbbellSimulation");
-
-using namespace ns3;
-
-// Network topology
-//
-//                       point to point
-//                      +--------------+
-//                      |              |
-//       n0   n1   n2   n3             n4   n5   n6   n7
-//       |    |    |    |              |    |    |    |
-//       ================              ================
-//             lan1                          lan2
-//
-int 
-main (int argc, char *argv[])
-{
-  LogComponentEnable ("DumbbellSimulation", LOG_LEVEL_INFO);
-//  LogComponentEnableAll (LOG_LEVEL_ALL, LOG_DECORATE_ALL);
-
-  NS_LOG_INFO ("Dumbbell Topology Simulation");
-
-  Ptr<Node> n0 = Create<InternetNode> ();
-  Ptr<Node> n1 = Create<InternetNode> ();
-  Ptr<Node> n2 = Create<InternetNode> ();
-  Ptr<Node> n3 = Create<InternetNode> ();
-
-  Ptr<CsmaChannel> lan1 = 
-    CsmaTopology::CreateCsmaChannel (DataRate (10000000), MilliSeconds (2));
-
-  uint32_t nd0 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n0, lan1, 
-    "08:00:2e:00:00:00");
-
-  uint32_t nd1 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n1, lan1, 
-    "08:00:2e:00:00:01");
-
-  uint32_t nd2 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n2, lan1, 
-    "08:00:2e:00:00:02");
-
-  uint32_t nd3 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n3, lan1, 
-    "08:00:2e:00:00:03");
-
-  CsmaIpv4Topology::AddIpv4Address (n0, nd0, "10.1.1.1", "255.255.255.0");
-  CsmaIpv4Topology::AddIpv4Address (n1, nd1, "10.1.1.2", "255.255.255.0");
-  CsmaIpv4Topology::AddIpv4Address (n2, nd2, "10.1.1.3", "255.255.255.0");
-  CsmaIpv4Topology::AddIpv4Address (n3, nd3, "10.1.1.4", "255.255.255.0");
-
-  Ptr<Node> n4 = Create<InternetNode> ();
-  Ptr<Node> n5 = Create<InternetNode> ();
-  Ptr<Node> n6 = Create<InternetNode> ();
-  Ptr<Node> n7 = Create<InternetNode> ();
-
-  Ptr<CsmaChannel> lan2 = 
-    CsmaTopology::CreateCsmaChannel (DataRate (10000000), MilliSeconds (2));
-
-  uint32_t nd4 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n4, lan2, 
-    "08:00:2e:00:00:04");
-
-  uint32_t nd5 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n5, lan2, 
-    "08:00:2e:00:00:05");
-
-  uint32_t nd6 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n6, lan2, 
-    "08:00:2e:00:00:06");
-
-  uint32_t nd7 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n7, lan2, 
-    "08:00:2e:00:00:07");
-
-  CsmaIpv4Topology::AddIpv4Address (n4, nd4, "10.1.2.1", "255.255.255.0");
-  CsmaIpv4Topology::AddIpv4Address (n5, nd5, "10.1.2.2", "255.255.255.0");
-  CsmaIpv4Topology::AddIpv4Address (n6, nd6, "10.1.2.3", "255.255.255.0");
-  CsmaIpv4Topology::AddIpv4Address (n7, nd7, "10.1.2.4", "255.255.255.0");
-
-  Ptr<PointToPointChannel> link = PointToPointTopology::AddPointToPointLink (
-    n3, n4, DataRate (38400), MilliSeconds (20));
-
-  PointToPointTopology::AddIpv4Addresses (link, n3, "10.1.3.1", 
-    n4, "10.1.3.2");
-
-  uint16_t port = 7;
-
-  Ptr<UdpEchoClient> client = Create<UdpEchoClient> (n0, "10.1.2.4", port, 
-    1, Seconds(1.), 1024);
-
-  Ptr<UdpEchoServer> server = Create<UdpEchoServer> (n7, port);
-
-  server->Start(Seconds(1.));
-  client->Start(Seconds(2.));
-
-  server->Stop (Seconds(10.));
-  client->Stop (Seconds(10.));
-
-  AsciiTrace asciitrace ("tutorial-4.tr");
-  asciitrace.TraceAllQueues ();
-  asciitrace.TraceAllNetDeviceRx ();
-
-  PcapTrace pcaptrace ("tutorial-4.pcap");
-  pcaptrace.TraceAllIp ();
-
-  GlobalRouteManager::PopulateRoutingTables ();
-
-  Simulator::Run ();
-  Simulator::Destroy ();
-}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/tutorial-point-to-point.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,78 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/log.h"
+#include "ns3/ptr.h"
+#include "ns3/internet-node.h"
+#include "ns3/point-to-point-channel.h"
+#include "ns3/mac48-address.h"
+#include "ns3/point-to-point-net-device.h"
+#include "ns3/point-to-point-topology.h"
+#include "ns3/udp-echo-client.h"
+#include "ns3/udp-echo-server.h"
+#include "ns3/simulator.h"
+#include "ns3/nstime.h"
+#include "ns3/ascii-trace.h"
+#include "ns3/pcap-trace.h"
+#include "ns3/global-route-manager.h"
+
+NS_LOG_COMPONENT_DEFINE ("PointToPointSimulation");
+
+using namespace ns3;
+
+// Network topology
+//
+//                       point to point
+//                      +--------------+
+//                      |              |
+//                     n0             n1
+//
+int 
+main (int argc, char *argv[])
+{
+  LogComponentEnable ("PointToPointSimulation", LOG_LEVEL_INFO);
+
+  NS_LOG_INFO ("Point to Point Topology Simulation");
+
+  Ptr<Node> n0 = Create<InternetNode> ();
+  Ptr<Node> n1 = Create<InternetNode> ();
+
+  Ptr<PointToPointChannel> link = PointToPointTopology::AddPointToPointLink (
+    n0, n1, DataRate (38400), MilliSeconds (20));
+
+  PointToPointTopology::AddIpv4Addresses (link, n0, "10.1.1.1", 
+    n1, "10.1.1.2");
+
+  uint16_t port = 7;
+
+  Ptr<UdpEchoClient> client = Create<UdpEchoClient> (n0, "10.1.1.2", port, 
+    1, Seconds(1.), 1024);
+
+  Ptr<UdpEchoServer> server = Create<UdpEchoServer> (n1, port);
+
+  server->Start(Seconds(1.));
+  client->Start(Seconds(2.));
+
+  server->Stop (Seconds(10.));
+  client->Stop (Seconds(10.));
+
+  AsciiTrace asciitrace ("tutorial.tr");
+  asciitrace.TraceAllQueues ();
+  asciitrace.TraceAllNetDeviceRx ();
+
+  Simulator::Run ();
+  Simulator::Destroy ();
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/tutorial-star-routing.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,167 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/log.h"
+#include "ns3/ptr.h"
+#include "ns3/internet-node.h"
+#include "ns3/point-to-point-channel.h"
+#include "ns3/mac48-address.h"
+#include "ns3/point-to-point-net-device.h"
+#include "ns3/udp-echo-client.h"
+#include "ns3/udp-echo-server.h"
+#include "ns3/simulator.h"
+#include "ns3/nstime.h"
+#include "ns3/ascii-trace.h"
+#include "ns3/pcap-trace.h"
+#include "ns3/global-route-manager.h"
+
+#include "point-to-point-ipv4-topology.h"
+
+NS_LOG_COMPONENT_DEFINE ("StarRoutingSimulation");
+
+using namespace ns3;
+
+// Network topology
+//
+//                  n3    n2
+//                   |   /
+//                    | /
+//              n4 --- n0 --- n1
+//                    /  |
+//                   /    |
+//                  n5    n6
+
+int 
+main (int argc, char *argv[])
+{
+  LogComponentEnable ("StarRoutingSimulation", LOG_LEVEL_INFO);
+
+  NS_LOG_INFO ("Star Topology with Routing Simulation");
+
+  Ptr<Node> n0 = Create<InternetNode> ();
+  Ptr<Node> n1 = Create<InternetNode> ();
+  Ptr<Node> n2 = Create<InternetNode> ();
+  Ptr<Node> n3 = Create<InternetNode> ();
+  Ptr<Node> n4 = Create<InternetNode> ();
+  Ptr<Node> n5 = Create<InternetNode> ();
+  Ptr<Node> n6 = Create<InternetNode> ();
+
+  Ptr<PointToPointChannel> link01 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd01 = PointToPointIpv4Topology::AddNetDevice (n0,
+    link01);
+
+  Ptr<PointToPointChannel> link02 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd02 = PointToPointIpv4Topology::AddNetDevice (n0,
+    link02);
+
+  Ptr<PointToPointChannel> link03 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd03 = PointToPointIpv4Topology::AddNetDevice (n0,
+    link03);
+
+  Ptr<PointToPointChannel> link04 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd04 = PointToPointIpv4Topology::AddNetDevice (n0, 
+    link04);
+
+  Ptr<PointToPointChannel> link05 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd05 = PointToPointIpv4Topology::AddNetDevice (n0,
+    link05);
+
+  Ptr<PointToPointChannel> link06 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd06 = PointToPointIpv4Topology::AddNetDevice (n0, link06);
+
+  uint32_t nd1 = PointToPointIpv4Topology::AddNetDevice (n1, link01);
+  uint32_t nd2 = PointToPointIpv4Topology::AddNetDevice (n2, link02);
+  uint32_t nd3 = PointToPointIpv4Topology::AddNetDevice (n3, link03);
+  uint32_t nd4 = PointToPointIpv4Topology::AddNetDevice (n4, link04);
+  uint32_t nd5 = PointToPointIpv4Topology::AddNetDevice (n5, link05);
+  uint32_t nd6 = PointToPointIpv4Topology::AddNetDevice (n6, link06);
+
+  PointToPointIpv4Topology::AddAddress (n0, nd01, "10.1.1.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n1, nd1, "10.1.1.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd02, "10.1.2.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n2, nd2, "10.1.2.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd03, "10.1.3.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n3, nd3, "10.1.2.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd04, "10.1.4.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n4, nd4, "10.1.4.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd05, "10.1.5.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n5, nd5, "10.1.5.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd06, "10.1.6.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n6, nd6, "10.1.6.2", 
+    "255.255.255.252");
+
+  uint16_t port = 7;
+
+  Ptr<UdpEchoClient> client = Create<UdpEchoClient> (n4, "10.1.1.2", port, 
+    1, Seconds(1.), 1024);
+
+  Ptr<UdpEchoServer> server = Create<UdpEchoServer> (n1, port);
+
+  server->Start(Seconds(1.));
+  client->Start(Seconds(2.));
+
+  server->Stop (Seconds(10.));
+  client->Stop (Seconds(10.));
+
+  AsciiTrace asciitrace ("tutorial.tr");
+  asciitrace.TraceAllQueues ();
+  asciitrace.TraceAllNetDeviceRx ();
+
+  GlobalRouteManager::PopulateRoutingTables ();
+
+  Simulator::Run ();
+  Simulator::Destroy ();
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tutorial/tutorial-star.cc	Fri Nov 16 08:48:57 2007 +0100
@@ -0,0 +1,165 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/log.h"
+#include "ns3/ptr.h"
+#include "ns3/internet-node.h"
+#include "ns3/point-to-point-channel.h"
+#include "ns3/mac48-address.h"
+#include "ns3/point-to-point-net-device.h"
+#include "ns3/udp-echo-client.h"
+#include "ns3/udp-echo-server.h"
+#include "ns3/simulator.h"
+#include "ns3/nstime.h"
+#include "ns3/ascii-trace.h"
+#include "ns3/pcap-trace.h"
+#include "ns3/global-route-manager.h"
+
+#include "point-to-point-ipv4-topology.h"
+
+NS_LOG_COMPONENT_DEFINE ("StarSimulation");
+
+using namespace ns3;
+
+// Network topology
+//
+//                  n3    n2
+//                   |   /
+//                    | /
+//              n4 --- n0 --- n1
+//                    /  |
+//                   /    |
+//                  n5    n6
+
+int 
+main (int argc, char *argv[])
+{
+  LogComponentEnable ("StarSimulation", LOG_LEVEL_INFO);
+
+  NS_LOG_INFO ("Star Topology Simulation");
+
+  Ptr<Node> n0 = Create<InternetNode> ();
+  Ptr<Node> n1 = Create<InternetNode> ();
+  Ptr<Node> n2 = Create<InternetNode> ();
+  Ptr<Node> n3 = Create<InternetNode> ();
+  Ptr<Node> n4 = Create<InternetNode> ();
+  Ptr<Node> n5 = Create<InternetNode> ();
+  Ptr<Node> n6 = Create<InternetNode> ();
+
+  Ptr<PointToPointChannel> link01 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd01 = PointToPointIpv4Topology::AddNetDevice (n0,
+    link01);
+
+  Ptr<PointToPointChannel> link02 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd02 = PointToPointIpv4Topology::AddNetDevice (n0,
+    link02);
+
+  Ptr<PointToPointChannel> link03 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd03 = PointToPointIpv4Topology::AddNetDevice (n0,
+    link03);
+
+  Ptr<PointToPointChannel> link04 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd04 = PointToPointIpv4Topology::AddNetDevice (n0, 
+    link04);
+
+  Ptr<PointToPointChannel> link05 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd05 = PointToPointIpv4Topology::AddNetDevice (n0,
+    link05);
+
+  Ptr<PointToPointChannel> link06 = 
+    PointToPointIpv4Topology::CreateChannel (DataRate (38400), 
+    MilliSeconds (20));
+
+  uint32_t nd06 = PointToPointIpv4Topology::AddNetDevice (n0, link06);
+
+  uint32_t nd1 = PointToPointIpv4Topology::AddNetDevice (n1, link01);
+  uint32_t nd2 = PointToPointIpv4Topology::AddNetDevice (n2, link02);
+  uint32_t nd3 = PointToPointIpv4Topology::AddNetDevice (n3, link03);
+  uint32_t nd4 = PointToPointIpv4Topology::AddNetDevice (n4, link04);
+  uint32_t nd5 = PointToPointIpv4Topology::AddNetDevice (n5, link05);
+  uint32_t nd6 = PointToPointIpv4Topology::AddNetDevice (n6, link06);
+
+  PointToPointIpv4Topology::AddAddress (n0, nd01, "10.1.1.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n1, nd1, "10.1.1.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd02, "10.1.2.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n2, nd2, "10.1.2.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd03, "10.1.3.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n3, nd3, "10.1.2.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd04, "10.1.4.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n4, nd4, "10.1.4.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd05, "10.1.5.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n5, nd5, "10.1.5.2", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n0, nd06, "10.1.6.1", 
+    "255.255.255.252");
+
+  PointToPointIpv4Topology::AddAddress (n6, nd6, "10.1.6.2", 
+    "255.255.255.252");
+
+  uint16_t port = 7;
+
+  Ptr<UdpEchoClient> client = Create<UdpEchoClient> (n0, "10.1.1.2", port, 
+    1, Seconds(1.), 1024);
+
+  Ptr<UdpEchoServer> server = Create<UdpEchoServer> (n1, port);
+
+  server->Start(Seconds(1.));
+  client->Start(Seconds(2.));
+
+  server->Stop (Seconds(10.));
+  client->Stop (Seconds(10.));
+
+  AsciiTrace asciitrace ("tutorial.tr");
+  asciitrace.TraceAllQueues ();
+  asciitrace.TraceAllNetDeviceRx ();
+
+  Simulator::Run ();
+  Simulator::Destroy ();
+}
--- a/tutorial/wscript	Thu Nov 15 16:34:53 2007 +0100
+++ b/tutorial/wscript	Fri Nov 16 08:48:57 2007 +0100
@@ -1,22 +1,36 @@
 ## -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
 
 def build(bld):
-    obj = bld.create_ns3_program('hello-simulator',
-        ['core'])
+    obj = bld.create_ns3_program('hello-simulator', ['core'])
     obj.source = 'hello-simulator.cc'
 
-    obj = bld.create_ns3_program('tutorial-csma-echo',
-        ['core'])
+    obj = bld.create_ns3_program('tutorial-csma-echo', ['core'])
     obj.source = 'tutorial-csma-echo.cc'
 
-    obj = bld.create_ns3_program('tutorial-csma-echo-ascii-trace',
-        ['core'])
+    obj = bld.create_ns3_program('tutorial-csma-echo-ascii-trace', ['core'])
     obj.source = 'tutorial-csma-echo-ascii-trace.cc'
 
-    obj = bld.create_ns3_program('tutorial-csma-echo-pcap-trace',
-        ['core'])
+    obj = bld.create_ns3_program('tutorial-csma-echo-pcap-trace', ['core'])
     obj.source = 'tutorial-csma-echo-pcap-trace.cc'
 
-    obj = bld.create_ns3_program('tutorial-naive-dumbbell',
-        ['core'])
-    obj.source = 'tutorial-naive-dumbbell.cc'
+    obj = bld.create_ns3_program('tutorial-point-to-point', ['core'])
+    obj.source = 'tutorial-point-to-point.cc'
+
+    obj = bld.create_ns3_program('tutorial-star', ['core'])
+    obj.source = ['tutorial-star.cc',
+                  'point-to-point-ipv4-topology.cc']
+
+    obj = bld.create_ns3_program('tutorial-star-routing', ['core'])
+    obj.source = ['tutorial-star-routing.cc',
+                  'point-to-point-ipv4-topology.cc']
+
+    obj = bld.create_ns3_program('tutorial-linear-dumbbell', ['core'])
+    obj.source = 'tutorial-linear-dumbbell.cc'
+
+    obj = bld.create_ns3_program('testipv4', ['core'])
+    obj.source = ['testipv4.cc', 'ipv4-address-generator.cc']
+
+    obj = bld.create_ns3_program('tutorial-bus-network', ['core'])
+    obj.source = ['tutorial-bus-network.cc',
+                  'ipv4-bus-network.cc',
+                  'ipv4-address-generator.cc']