---
# System prepended metadata

title: NS3 Source Code Simulation

---

{%hackmd @ninoagus/rkG8Y3Mfp %}
#    NS3 Source Code Simulation
## Dependencies NS3
```=
sudo apt install g++ python3 cmake ninja-build git gir1.2-goocanvas-2.0 python3-gi python3-gi-cairo python3-pygraphviz gir1.2-gtk-3.0 ipython3 tcpdump wireshark sqlite sqlite3 libsqlite3-dev qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools openmpi-bin openmpi-common openmpi-doc libopenmpi-dev doxygen graphviz imagemagick python3-sphinx dia texlive dvipng latexmk texlive-extra-utils texlive-latex-extra texlive-font-utils libeigen3-dev gsl-bin libgsl-dev libgslcblas0 libxml2 libxml2-dev libgtk-3-dev lxc- utils lxc-templates vtun uml-utilities ebtables
bridge-utils libboost-all-dev -y
```


## BAB 7: Point to Point Simulation

```=
/*
 * 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/applications-module.h"
#include "ns3/core-module.h"
#include "ns3/internet-module.h"
#include "ns3/network-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/netanim-module.h"

// Default Network Topology
//
//       10.1.1.0
// n0 -------------- n1
//    point-to-point
//

using namespace ns3;

NS_LOG_COMPONENT_DEFINE("FirstScriptExample");

int
main(int argc, char* argv[])
{
    CommandLine cmd(__FILE__);
    cmd.Parse(argc, argv);

    Time::SetResolution(Time::NS);
    LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_INFO);
    LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_INFO);

    NodeContainer nodes;
    nodes.Create(2);

    PointToPointHelper pointToPoint;
    pointToPoint.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
    pointToPoint.SetChannelAttribute("Delay", StringValue("2ms"));

    NetDeviceContainer devices;
    devices = pointToPoint.Install(nodes);

    InternetStackHelper stack;
    stack.Install(nodes);

    Ipv4AddressHelper address;
    address.SetBase("10.1.1.0", "255.255.255.0");

    Ipv4InterfaceContainer interfaces = address.Assign(devices);

    UdpEchoServerHelper echoServer(9);

    ApplicationContainer serverApps = echoServer.Install(nodes.Get(1));
    serverApps.Start(Seconds(1.0));
    serverApps.Stop(Seconds(10.0));

    UdpEchoClientHelper echoClient(interfaces.GetAddress(1), 9);
    echoClient.SetAttribute("MaxPackets", UintegerValue(1));
    echoClient.SetAttribute("Interval", TimeValue(Seconds(1.0)));
    echoClient.SetAttribute("PacketSize", UintegerValue(1024));

    ApplicationContainer clientApps = echoClient.Install(nodes.Get(0));
    clientApps.Start(Seconds(2.0));
    clientApps.Stop(Seconds(10.0));
    
    AnimationInterface anim ("p2p.xml");
    anim.SetConstantPosition(nodes.Get(0),0.0, 0.0);
    anim.SetConstantPosition(nodes.Get(1),87.0, 87.0);
    anim.UpdateNodeSize(0, 3.0, 3.0);
    anim.UpdateNodeSize(1, 3.0, 3.0);

    Simulator::Run();
    Simulator::Destroy();
    return 0;
}
```


## BAB 8: CSMA (Carrier Sense Multiple Access) Simulation

```=
/*
		NETWORK SIMULATOR 3 FOR BEGINNER
  For support simulation in "CSMA (LAN Topology)" simulation
*/

/*
*       ilustrasi topologi
*
*      n0      n1   n2    n3    n5
*       |      |    |      |    |
*      ===============
*         LAN 10.1.1.0
*/
 
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/csma-module.h"
#include "ns3/internet-module.h"
#include "ns3/applications-module.h"
#include "ns3/netanim-module.h" // entered for animation configuration and output file
 
 
using namespace ns3;
 
NS_LOG_COMPONENT_DEFINE ("CsmaScript");
 
int 
main (int argc, char *argv[])
{
  bool verbose = true;
  uint32_t nCsma = 5;
 
  CommandLine cmd;
  cmd.AddValue ("nCsma", "Number of CSMA nodes/devices", nCsma);
  cmd.AddValue ("verbose", "Tell echo applications to log if true", verbose);
 
  cmd.Parse (argc,argv);
 
  if (verbose)
    {
      LogComponentEnable ("UdpEchoClientApplication", LOG_LEVEL_INFO);
      LogComponentEnable ("UdpEchoServerApplication", LOG_LEVEL_INFO);
    }
 
  NodeContainer csmaNodes;
  csmaNodes.Create (nCsma);
 
  CsmaHelper csma;
  csma.SetChannelAttribute ("DataRate", StringValue ("100Mbps"));
  csma.SetChannelAttribute ("Delay", TimeValue (NanoSeconds (6560)));
 
  NetDeviceContainer csmaDevices;
  csmaDevices = csma.Install (csmaNodes);
 
  InternetStackHelper stack;
  stack.Install (csmaNodes);
 
  Ipv4AddressHelper address;
  address.SetBase ("10.1.1.0", "255.255.255.0");
  Ipv4InterfaceContainer csmaInterfaces;
  csmaInterfaces = address.Assign (csmaDevices);
 
  UdpEchoServerHelper echoServer (9);
 
  ApplicationContainer serverApps = echoServer.Install (csmaNodes.Get (4));
  serverApps.Start (Seconds (1.0));
  serverApps.Stop (Seconds (10.0));
 
  UdpEchoClientHelper echoClient (csmaInterfaces.GetAddress (4), 9);
  echoClient.SetAttribute ("MaxPackets", UintegerValue (1));
  echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.0)));
  echoClient.SetAttribute ("PacketSize", UintegerValue (1024));
 
  ApplicationContainer clientApps = echoClient.Install (csmaNodes.Get (0));
  clientApps.Start (Seconds (2.0));
  clientApps.Stop (Seconds (10.0));
 
 
  csma.EnablePcap ("csma", csmaDevices.Get (0), true);
 
  // Animation configuration lines
  AnimationInterface anim ("csma.xml");
  anim.SetConstantPosition (csmaNodes.Get(0), 0.0, 40.0 );
  anim.SetConstantPosition (csmaNodes.Get(1), 24.0, 40.0 );
  anim.SetConstantPosition (csmaNodes.Get(2), 48.0, 40.0 );
  anim.SetConstantPosition (csmaNodes.Get(3), 72.0, 40.0 );
  anim.SetConstantPosition (csmaNodes.Get(4), 96.0, 40.0 );
  anim.UpdateNodeSize(0, 3.0, 3.0);
  anim.UpdateNodeSize(1, 3.0, 3.0);
  anim.UpdateNodeSize(2, 3.0, 3.0);
  anim.UpdateNodeSize(3, 3.0, 3.0);
  anim.UpdateNodeSize(4, 3.0, 3.0);
  // End of animation configuration
 
  Simulator::Run ();
  Simulator::Destroy ();
  return 0;
}
```



## BAB 9: Point to Point Topology and CSMA Simulation

```=
/*
 * 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/applications-module.h"
#include "ns3/core-module.h"
#include "ns3/csma-module.h"
#include "ns3/internet-module.h"
#include "ns3/ipv4-global-routing-helper.h"
#include "ns3/network-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/netanim-module.h"

// Default Network Topology
//
//       10.1.1.0
// n0 -------------- n1   n2   n3   n4
//    point-to-point  |    |    |    |
//                    ================
//                      LAN 10.1.2.0

using namespace ns3;

NS_LOG_COMPONENT_DEFINE("SecondScriptExample");

int
main(int argc, char* argv[])
{
    bool verbose = true;
    uint32_t nCsma = 3;

    CommandLine cmd(__FILE__);
    cmd.AddValue("nCsma", "Number of \"extra\" CSMA nodes/devices", nCsma);
    cmd.AddValue("verbose", "Tell echo applications to log if true", verbose);

    cmd.Parse(argc, argv);

    if (verbose)
    {
        LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_INFO);
        LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_INFO);
    }

    nCsma = nCsma == 0 ? 1 : nCsma;

    NodeContainer p2pNodes;
    p2pNodes.Create(2);

    NodeContainer csmaNodes;
    csmaNodes.Add(p2pNodes.Get(1));
    csmaNodes.Create(nCsma);

    PointToPointHelper pointToPoint;
    pointToPoint.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
    pointToPoint.SetChannelAttribute("Delay", StringValue("2ms"));

    NetDeviceContainer p2pDevices;
    p2pDevices = pointToPoint.Install(p2pNodes);

    CsmaHelper csma;
    csma.SetChannelAttribute("DataRate", StringValue("100Mbps"));
    csma.SetChannelAttribute("Delay", TimeValue(NanoSeconds(6560)));

    NetDeviceContainer csmaDevices;
    csmaDevices = csma.Install(csmaNodes);

    InternetStackHelper stack;
    stack.Install(p2pNodes.Get(0));
    stack.Install(csmaNodes);

    Ipv4AddressHelper address;
    address.SetBase("10.1.1.0", "255.255.255.0");
    Ipv4InterfaceContainer p2pInterfaces;
    p2pInterfaces = address.Assign(p2pDevices);

    address.SetBase("10.1.2.0", "255.255.255.0");
    Ipv4InterfaceContainer csmaInterfaces;
    csmaInterfaces = address.Assign(csmaDevices);

    UdpEchoServerHelper echoServer(9);

    ApplicationContainer serverApps = echoServer.Install(csmaNodes.Get(nCsma));
    serverApps.Start(Seconds(1.0));
    serverApps.Stop(Seconds(10.0));

    UdpEchoClientHelper echoClient(csmaInterfaces.GetAddress(nCsma), 9);
    echoClient.SetAttribute("MaxPackets", UintegerValue(1));
    echoClient.SetAttribute("Interval", TimeValue(Seconds(1.0)));
    echoClient.SetAttribute("PacketSize", UintegerValue(1024));

    ApplicationContainer clientApps = echoClient.Install(p2pNodes.Get(0));
    clientApps.Start(Seconds(2.0));
    clientApps.Stop(Seconds(10.0));

    Ipv4GlobalRoutingHelper::PopulateRoutingTables();

    pointToPoint.EnablePcapAll("second");
    csma.EnablePcap("second", csmaDevices.Get(1), true);
    
    AnimationInterface anim ("csmap2p.xml");
    anim.SetConstantPosition (p2pNodes.Get(0),0.0, 0.0);
    anim.SetConstantPosition (csmaNodes.Get(0),54.0, 61.0);
    anim.SetConstantPosition (csmaNodes.Get(1),54.0, 73.0);
    anim.SetConstantPosition (csmaNodes.Get(2),54.0, 85.0);
    anim.SetConstantPosition (csmaNodes.Get(3),54.0, 98.0);
    anim.UpdateNodeSize(0, 5.0, 5.0);
    anim.UpdateNodeSize(1, 5.0, 5.0);
    anim.UpdateNodeSize(2, 5.0, 5.0);
    anim.UpdateNodeSize(3, 5.0, 5.0);
    anim.UpdateNodeSize(4, 5.0, 5.0);

    Simulator::Run();
    Simulator::Destroy();
    return 0;
}
```

## BAB 10: Wireless (AP-STA) Network Simulation

```=
/* -*- 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/core-module.h"
#include "ns3/network-module.h"
#include "ns3/applications-module.h"
#include "ns3/wifi-module.h"
#include "ns3/mobility-module.h"
#include "ns3/internet-module.h"
#include "ns3/netanim-module.h"


// Default Network Topology
//
// Number of wifi nodes can be increased up to 250
//   Wifi 10.1.3.0
//                 AP
//  *    *    *    *
//  |    |    |    |    10.1.1.0node
// n3   n2   n1   n0 


using namespace ns3;

NS_LOG_COMPONENT_DEFINE ("ThirdScriptExample");

int 
main (int argc, char *argv[])
{
  bool verbose = true;
  uint32_t nWifi = 3;
  bool tracing = false;

  CommandLine cmd;
  cmd.AddValue ("nWifi", "Number of wifi STA devices", nWifi);
  cmd.AddValue ("verbose", "Tell echo applications to log if true", verbose);
  cmd.AddValue ("tracing", "Enable pcap tracing", tracing);

  cmd.Parse (argc,argv);

  if (verbose)
    {
      LogComponentEnable ("UdpEchoClientApplication", LOG_LEVEL_INFO);
      LogComponentEnable ("UdpEchoServerApplication", LOG_LEVEL_INFO);
    }

  NodeContainer wifiStaNodes;
  wifiStaNodes.Create (nWifi);
  NodeContainer wifiApNode;
  wifiApNode.Create(1);

  YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
  YansWifiPhyHelper phy;
  phy.SetChannel (channel.Create ());

  WifiHelper wifi;
  wifi.SetRemoteStationManager ("ns3::MinstrelHtWifiManager");

  WifiMacHelper mac;
  Ssid ssid = Ssid ("ns-3-ssid");
  mac.SetType ("ns3::StaWifiMac",
               "Ssid", SsidValue (ssid),
               "ActiveProbing", BooleanValue (false));

  NetDeviceContainer staDevices;
  staDevices = wifi.Install (phy, mac, wifiStaNodes);

  mac.SetType ("ns3::ApWifiMac",
               "Ssid", SsidValue (ssid));

  NetDeviceContainer apDevices;
  apDevices = wifi.Install (phy, mac, wifiApNode);

  MobilityHelper mobility;

  mobility.SetPositionAllocator ("ns3::GridPositionAllocator",
                                 "MinX", DoubleValue (0.0),
                                 "MinY", DoubleValue (0.0),
                                 "DeltaX", DoubleValue (5.0),
                                 "DeltaY", DoubleValue (10.0),
                                 "GridWidth", UintegerValue (3),
                                 "LayoutType", StringValue ("RowFirst"));

  mobility.SetMobilityModel ("ns3::RandomWalk2dMobilityModel",
                             "Bounds", RectangleValue (Rectangle (-50, 50, -50, 50)));
  mobility.Install (wifiStaNodes);

  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
  mobility.Install (wifiApNode);

  InternetStackHelper stack;
  stack.Install (wifiApNode);
  stack.Install (wifiStaNodes);

  Ipv4AddressHelper address;

  address.SetBase ("10.1.1.0", "255.255.255.0");
  Ipv4InterfaceContainer wifiStaInterfaces;
  wifiStaInterfaces = address.Assign (staDevices);
  address.Assign (apDevices);

  UdpEchoServerHelper echoServer (9);

  ApplicationContainer serverApps = echoServer.Install (wifiStaNodes.Get (0));
  serverApps.Start (Seconds (1.0));
  serverApps.Stop (Seconds (10.0));

  UdpEchoClientHelper echoClient (wifiStaInterfaces.GetAddress (2), 9);
  echoClient.SetAttribute ("MaxPackets", UintegerValue (10));
  echoClient.SetAttribute ("Interval", TimeValue (Seconds (0.5)));
  echoClient.SetAttribute ("PacketSize", UintegerValue (1024));

  ApplicationContainer clientApps = 
    echoClient.Install (wifiStaNodes.Get (2));
  clientApps.Start (Seconds (2.0));
  clientApps.Stop (Seconds (10.0));

  Ipv4GlobalRoutingHelper::PopulateRoutingTables ();

  Simulator::Stop (Seconds (10.0));

  if (tracing == true)
    {
      phy.EnablePcap ("third", apDevices.Get (0));
    }

  AnimationInterface anim ("third.xml");
  anim.EnablePacketMetadata(true);

  Simulator::Run ();
  Simulator::Destroy ();
  return 0;
}
```

## BAB 11: Point to Point Topology, CSMA, and WIFI Simulation

```=
/*
 * 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/applications-module.h"
#include "ns3/core-module.h"
#include "ns3/csma-module.h"
#include "ns3/internet-module.h"
#include "ns3/mobility-module.h"
#include "ns3/network-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/ssid.h"
#include "ns3/yans-wifi-helper.h"
#include "ns3/netanim-module.h"

// Default Network Topology
//
//   Wifi 10.1.3.0
//                 AP
//  *    *    *    *
//  |    |    |    |    10.1.1.0
// n5   n6   n7   n0 -------------- n1   n2   n3   n4
//                   point-to-point  |    |    |    |
//                                   ================
//                                     LAN 10.1.2.0

using namespace ns3;

NS_LOG_COMPONENT_DEFINE("ThirdScriptExample");

int
main(int argc, char* argv[])
{
    bool verbose = true;
    uint32_t nCsma = 3;
    uint32_t nWifi = 3;
    bool tracing = false;

    CommandLine cmd(__FILE__);
    cmd.AddValue("nCsma", "Number of \"extra\" CSMA nodes/devices", nCsma);
    cmd.AddValue("nWifi", "Number of wifi STA devices", nWifi);
    cmd.AddValue("verbose", "Tell echo applications to log if true", verbose);
    cmd.AddValue("tracing", "Enable pcap tracing", tracing);

    cmd.Parse(argc, argv);

    // The underlying restriction of 18 is due to the grid position
    // allocator's configuration; the grid layout will exceed the
    // bounding box if more than 18 nodes are provided.
    if (nWifi > 18)
    {
        std::cout << "nWifi should be 18 or less; otherwise grid layout exceeds the bounding box"
                  << std::endl;
        return 1;
    }

    if (verbose)
    {
        LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_INFO);
        LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_INFO);
    }

    NodeContainer p2pNodes;
    p2pNodes.Create(2);

    PointToPointHelper pointToPoint;
    pointToPoint.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
    pointToPoint.SetChannelAttribute("Delay", StringValue("2ms"));

    NetDeviceContainer p2pDevices;
    p2pDevices = pointToPoint.Install(p2pNodes);

    NodeContainer csmaNodes;
    csmaNodes.Add(p2pNodes.Get(1));
    csmaNodes.Create(nCsma);

    CsmaHelper csma;
    csma.SetChannelAttribute("DataRate", StringValue("100Mbps"));
    csma.SetChannelAttribute("Delay", TimeValue(NanoSeconds(6560)));

    NetDeviceContainer csmaDevices;
    csmaDevices = csma.Install(csmaNodes);

    NodeContainer wifiStaNodes;
    wifiStaNodes.Create(nWifi);
    NodeContainer wifiApNode = p2pNodes.Get(0);

    YansWifiChannelHelper channel = YansWifiChannelHelper::Default();
    YansWifiPhyHelper phy;
    phy.SetChannel(channel.Create());

    WifiMacHelper mac;
    Ssid ssid = Ssid("ns-3-ssid");

    WifiHelper wifi;

    NetDeviceContainer staDevices;
    mac.SetType("ns3::StaWifiMac", "Ssid", SsidValue(ssid), "ActiveProbing", BooleanValue(false));
    staDevices = wifi.Install(phy, mac, wifiStaNodes);

    NetDeviceContainer apDevices;
    mac.SetType("ns3::ApWifiMac", "Ssid", SsidValue(ssid));
    apDevices = wifi.Install(phy, mac, wifiApNode);

    MobilityHelper mobility;

    mobility.SetPositionAllocator("ns3::GridPositionAllocator",
                                  "MinX",
                                  DoubleValue(0.0),
                                  "MinY",
                                  DoubleValue(0.0),
                                  "DeltaX",
                                  DoubleValue(5.0),
                                  "DeltaY",
                                  DoubleValue(10.0),
                                  "GridWidth",
                                  UintegerValue(3),
                                  "LayoutType",
                                  StringValue("RowFirst"));

    mobility.SetMobilityModel("ns3::RandomWalk2dMobilityModel",
                              "Bounds",
                              RectangleValue(Rectangle(-50, 50, -50, 50)));
    mobility.Install(wifiStaNodes);

    mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
    mobility.Install(wifiApNode);

    InternetStackHelper stack;
    stack.Install(csmaNodes);
    stack.Install(wifiApNode);
    stack.Install(wifiStaNodes);

    Ipv4AddressHelper address;

    address.SetBase("10.1.1.0", "255.255.255.0");
    Ipv4InterfaceContainer p2pInterfaces;
    p2pInterfaces = address.Assign(p2pDevices);

    address.SetBase("10.1.2.0", "255.255.255.0");
    Ipv4InterfaceContainer csmaInterfaces;
    csmaInterfaces = address.Assign(csmaDevices);

    address.SetBase("10.1.3.0", "255.255.255.0");
    address.Assign(staDevices);
    address.Assign(apDevices);

    UdpEchoServerHelper echoServer(9);

    ApplicationContainer serverApps = echoServer.Install(csmaNodes.Get(nCsma));
    serverApps.Start(Seconds(1.0));
    serverApps.Stop(Seconds(10.0));

    UdpEchoClientHelper echoClient(csmaInterfaces.GetAddress(nCsma), 9);
    echoClient.SetAttribute("MaxPackets", UintegerValue(1));
    echoClient.SetAttribute("Interval", TimeValue(Seconds(1.0)));
    echoClient.SetAttribute("PacketSize", UintegerValue(1024));

    ApplicationContainer clientApps = echoClient.Install(wifiStaNodes.Get(nWifi - 1));
    clientApps.Start(Seconds(2.0));
    clientApps.Stop(Seconds(10.0));

    Ipv4GlobalRoutingHelper::PopulateRoutingTables();

    Simulator::Stop(Seconds(10.0));

    if (tracing)
    {
        phy.SetPcapDataLinkType(WifiPhyHelper::DLT_IEEE802_11_RADIO);
        pointToPoint.EnablePcapAll("third");
        phy.EnablePcap("third", apDevices.Get(0));
        csma.EnablePcap("third", csmaDevices.Get(0), true);
    }
    
    AnimationInterface anim ("gabungan.xml");
    anim.SetConstantPosition(p2pNodes.Get(0),0.0, 50.0);
    anim.SetConstantPosition(csmaNodes.Get(0),0.0, 100.0);
    anim.SetConstantPosition(csmaNodes.Get(1),25.0, 100.0);
    anim.SetConstantPosition(csmaNodes.Get(2),50.0, 100.0);
    anim.SetConstantPosition(csmaNodes.Get(3),75.0, 100.0);
    anim.UpdateNodeSize(0, 5.0, 5.0);
    anim.UpdateNodeSize(1, 5.0, 5.0);
    anim.UpdateNodeSize(2, 5.0, 5.0);
    anim.UpdateNodeSize(3, 5.0, 5.0);
    anim.UpdateNodeSize(4, 5.0, 5.0);
    anim.UpdateNodeSize(5, 5.0, 5.0);
    anim.UpdateNodeSize(6, 5.0, 5.0);
    anim.UpdateNodeSize(7, 5.0, 5.0);

    Simulator::Run();
    Simulator::Destroy();
    return 0;
}
```