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global-routing-slash32.cc
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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 
18 // Test program for this 3-router scenario, using global routing
19 //
20 // (a.a.a.a/32)A<--x.x.x.0/30-->B<--y.y.y.0/30-->C(c.c.c.c/32)
21 
22 #include <iostream>
23 #include <fstream>
24 #include <string>
25 #include <cassert>
26 
27 #include "ns3/csma-net-device.h"
28 #include "ns3/core-module.h"
29 #include "ns3/network-module.h"
30 #include "ns3/internet-module.h"
31 #include "ns3/point-to-point-module.h"
32 #include "ns3/applications-module.h"
33 #include "ns3/ipv4-global-routing-helper.h"
34 
35 using namespace ns3;
36 
37 NS_LOG_COMPONENT_DEFINE ("GlobalRouterSlash32Test");
38 
39 int
40 main (int argc, char *argv[])
41 {
42 
43  // Allow the user to override any of the defaults and the above
44  // DefaultValue::Bind ()s at run-time, via command-line arguments
45  CommandLine cmd;
46  cmd.Parse (argc, argv);
47 
48  Ptr<Node> nA = CreateObject<Node> ();
49  Ptr<Node> nB = CreateObject<Node> ();
50  Ptr<Node> nC = CreateObject<Node> ();
51 
52  NodeContainer c = NodeContainer (nA, nB, nC);
53 
54  InternetStackHelper internet;
55  internet.Install (c);
56 
57  // Point-to-point links
58  NodeContainer nAnB = NodeContainer (nA, nB);
59  NodeContainer nBnC = NodeContainer (nB, nC);
60 
61  // We create the channels first without any IP addressing information
62  PointToPointHelper p2p;
63  p2p.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
64  p2p.SetChannelAttribute ("Delay", StringValue ("2ms"));
65  NetDeviceContainer dAdB = p2p.Install (nAnB);
66 
67  NetDeviceContainer dBdC = p2p.Install (nBnC);;
68 
69  Ptr<CsmaNetDevice> deviceA = CreateObject<CsmaNetDevice> ();
70  deviceA->SetAddress (Mac48Address::Allocate ());
71  nA->AddDevice (deviceA);
72 
73  Ptr<CsmaNetDevice> deviceC = CreateObject<CsmaNetDevice> ();
74  deviceC->SetAddress (Mac48Address::Allocate ());
75  nC->AddDevice (deviceC);
76 
77  // Later, we add IP addresses.
78  Ipv4AddressHelper ipv4;
79  ipv4.SetBase ("10.1.1.0", "255.255.255.252");
80  Ipv4InterfaceContainer iAiB = ipv4.Assign (dAdB);
81 
82  ipv4.SetBase ("10.1.1.4", "255.255.255.252");
83  Ipv4InterfaceContainer iBiC = ipv4.Assign (dBdC);
84 
85  Ptr<Ipv4> ipv4A = nA->GetObject<Ipv4> ();
86  Ptr<Ipv4> ipv4C = nC->GetObject<Ipv4> ();
87 
88  int32_t ifIndexA = ipv4A->AddInterface (deviceA);
89  int32_t ifIndexC = ipv4C->AddInterface (deviceC);
90 
91  Ipv4InterfaceAddress ifInAddrA = Ipv4InterfaceAddress (Ipv4Address ("172.16.1.1"), Ipv4Mask ("255.255.255.255"));
92  ipv4A->AddAddress (ifIndexA, ifInAddrA);
93  ipv4A->SetMetric (ifIndexA, 1);
94  ipv4A->SetUp (ifIndexA);
95 
96  Ipv4InterfaceAddress ifInAddrC = Ipv4InterfaceAddress (Ipv4Address ("192.168.1.1"), Ipv4Mask ("255.255.255.255"));
97  ipv4C->AddAddress (ifIndexC, ifInAddrC);
98  ipv4C->SetMetric (ifIndexC, 1);
99  ipv4C->SetUp (ifIndexC);
100 
101  // Create router nodes, initialize routing database and set up the routing
102  // tables in the nodes.
103  Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
104 
105  // Create the OnOff application to send UDP datagrams of size
106  // 210 bytes at a rate of 448 Kb/s
107  uint16_t port = 9; // Discard port (RFC 863)
108  OnOffHelper onoff ("ns3::UdpSocketFactory",
109  Address (InetSocketAddress (ifInAddrC.GetLocal (), port)));
110  onoff.SetConstantRate (DataRate (6000));
111  ApplicationContainer apps = onoff.Install (nA);
112  apps.Start (Seconds (1.0));
113  apps.Stop (Seconds (10.0));
114 
115  // Create a packet sink to receive these packets
116  PacketSinkHelper sink ("ns3::UdpSocketFactory",
117  Address (InetSocketAddress (Ipv4Address::GetAny (), port)));
118  apps = sink.Install (nC);
119  apps.Start (Seconds (1.0));
120  apps.Stop (Seconds (10.0));
121 
122  AsciiTraceHelper ascii;
123  p2p.EnableAsciiAll (ascii.CreateFileStream ("global-routing-slash32.tr"));
124  p2p.EnablePcapAll ("global-routing-slash32");
125 
126  Simulator::Run ();
127  Simulator::Destroy ();
128 
129  return 0;
130 }