1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 as
5 * published by the Free Software Foundation;
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15 */
16
17 // Network topology
18 //
19 // Packets sent to the device "thetap" on the Linux host will be sent to the
20 // tap bridge on node zero and then emitted onto the ns-3 simulated CSMA
21 // network. ARP will be used on the CSMA network to resolve MAC addresses.
22 // Packets destined for the CSMA device on node zero will be sent to the
23 // device "thetap" on the linux Host.
24 //
25 // +----------+
26 // | external |
27 // | Linux |
28 // | Host |
29 // | |
30 // | "thetap" |
31 // +----------+
32 // | n0 n1 n2 n3
33 // | +--------+ +--------+ +--------+ +--------+
34 // +-------| tap | | | | | | |
35 // | bridge | | | | | | |
36 // +--------+ +--------+ +--------+ +--------+
37 // | CSMA | | CSMA | | CSMA | | CSMA |
38 // +--------+ +--------+ +--------+ +--------+
39 // | | | |
40 // | | | |
41 // | | | |
42 // ===========================================
43 // CSMA LAN 10.1.1
44 //
45 // The CSMA device on node zero is: 10.1.1.1
46 // The CSMA device on node one is: 10.1.1.2
47 // The CSMA device on node two is: 10.1.1.3
48 // The CSMA device on node three is: 10.1.1.4
49 //
50 // Some simple things to do:
51 //
52 // 1) Ping one of the simulated nodes
53 //
54 // ./waf --run tap-csma&
55 // ping 10.1.1.2
56 //
57 #include <iostream>
58 #include <fstream>
59
60 #include "ns3/core-module.h"
61 #include "ns3/network-module.h"
62 #include "ns3/wifi-module.h"
63 #include "ns3/csma-module.h"
64 #include "ns3/internet-module.h"
65 #include "ns3/ipv4-global-routing-helper.h"
66 #include "ns3/tap-bridge-module.h"
67
68 using namespace ns3;
69
70 NS_LOG_COMPONENT_DEFINE ("TapCsmaExample");
71
72 int
main(int argc,char * argv[])73 main (int argc, char *argv[])
74 {
75 std::string mode = "ConfigureLocal";
76 std::string tapName = "thetap";
77
78 CommandLine cmd (__FILE__);
79 cmd.AddValue ("mode", "Mode setting of TapBridge", mode);
80 cmd.AddValue ("tapName", "Name of the OS tap device", tapName);
81 cmd.Parse (argc, argv);
82
83 GlobalValue::Bind ("SimulatorImplementationType", StringValue ("ns3::RealtimeSimulatorImpl"));
84 GlobalValue::Bind ("ChecksumEnabled", BooleanValue (true));
85
86 NodeContainer nodes;
87 nodes.Create (4);
88
89 CsmaHelper csma;
90 csma.SetChannelAttribute ("DataRate", DataRateValue (5000000));
91 csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
92
93 NetDeviceContainer devices = csma.Install (nodes);
94
95 InternetStackHelper stack;
96 stack.Install (nodes);
97
98 Ipv4AddressHelper addresses;
99 addresses.SetBase ("10.1.1.0", "255.255.255.0");
100 Ipv4InterfaceContainer interfaces = addresses.Assign (devices);
101
102 TapBridgeHelper tapBridge;
103 tapBridge.SetAttribute ("Mode", StringValue (mode));
104 tapBridge.SetAttribute ("DeviceName", StringValue (tapName));
105 tapBridge.Install (nodes.Get (0), devices.Get (0));
106
107 csma.EnablePcapAll ("tap-csma", false);
108 Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
109
110 Simulator::Stop (Seconds (60.));
111 Simulator::Run ();
112 Simulator::Destroy ();
113 }
114