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global-injection-slash32.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
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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-static-routing.h"
34 #include "ns3/ipv4-global-routing.h"
35 #include "ns3/ipv4-list-routing.h"
36 #include "ns3/ipv4-routing-table-entry.h"
37 #include "ns3/global-router-interface.h"
38 #include "ns3/ipv4-static-routing-helper.h"
39 #include "ns3/ipv4-list-routing-helper.h"
40 #include "ns3/ipv4-global-routing-helper.h"
41 
42 using namespace ns3;
43 using std::cout;
44 
45 NS_LOG_COMPONENT_DEFINE ("GlobalRouterInjectionTest");
46 
47 int
48 main (int argc, char *argv[])
49 {
50 
51  // Allow the user to override any of the defaults and the above
52  // DefaultValue::Bind ()s at run-time, via command-line arguments
53  CommandLine cmd;
54  cmd.Parse (argc, argv);
55 
56  Ptr<Node> nA = CreateObject<Node> ();
57  Ptr<Node> nB = CreateObject<Node> ();
58  Ptr<Node> nC = CreateObject<Node> ();
59 
60  NodeContainer c = NodeContainer (nA, nB, nC);
61 
62  InternetStackHelper internet;
63 
64  // Point-to-point links
65  NodeContainer nAnB = NodeContainer (nA, nB);
66  NodeContainer nBnC = NodeContainer (nB, nC);
67 
68  internet.Install (nAnB);
69  Ipv4ListRoutingHelper staticonly;
70  Ipv4ListRoutingHelper staticRouting;
71  staticonly.Add (staticRouting, 0);
72  internet.SetRoutingHelper (staticonly); // has effect on the next Install ()
73  internet.Install (NodeContainer (nC));
74 
75  // We create the channels first without any IP addressing information
77  p2p.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
78  p2p.SetChannelAttribute ("Delay", StringValue ("2ms"));
79  NetDeviceContainer dAdB = p2p.Install (nAnB);
80 
81  NetDeviceContainer dBdC = p2p.Install (nBnC);;
82 
83  Ptr<CsmaNetDevice> deviceA = CreateObject<CsmaNetDevice> ();
84  deviceA->SetAddress (Mac48Address::Allocate ());
85  nA->AddDevice (deviceA);
86 
87  Ptr<CsmaNetDevice> deviceC = CreateObject<CsmaNetDevice> ();
88  deviceC->SetAddress (Mac48Address::Allocate ());
89  nC->AddDevice (deviceC);
90 
91  // Later, we add IP addresses.
92  Ipv4AddressHelper ipv4;
93  ipv4.SetBase ("10.1.1.0", "255.255.255.252");
94  Ipv4InterfaceContainer iAiB = ipv4.Assign (dAdB);
95 
96  ipv4.SetBase ("10.1.1.4", "255.255.255.252");
97  Ipv4InterfaceContainer iBiC = ipv4.Assign (dBdC);
98 
99  Ptr<Ipv4> ipv4A = nA->GetObject<Ipv4> ();
100  Ptr<Ipv4> ipv4B = nB->GetObject<Ipv4> ();
101  Ptr<Ipv4> ipv4C = nC->GetObject<Ipv4> ();
102 
103  int32_t ifIndexA = ipv4A->AddInterface (deviceA);
104  int32_t ifIndexC = ipv4C->AddInterface (deviceC);
105 
106  Ipv4InterfaceAddress ifInAddrA = Ipv4InterfaceAddress (Ipv4Address ("172.16.1.1"), Ipv4Mask ("255.255.255.255"));
107  ipv4A->AddAddress (ifIndexA, ifInAddrA);
108  ipv4A->SetMetric (ifIndexA, 1);
109  ipv4A->SetUp (ifIndexA);
110 
111  Ipv4InterfaceAddress ifInAddrC = Ipv4InterfaceAddress (Ipv4Address ("192.168.1.1"), Ipv4Mask ("255.255.255.255"));
112  ipv4C->AddAddress (ifIndexC, ifInAddrC);
113  ipv4C->SetMetric (ifIndexC, 1);
114  ipv4C->SetUp (ifIndexC);
115 
116  // Create router nodes, initialize routing database and set up the routing
117  // tables in the nodes.
118 
119  // Populate routing tables for nodes nA and nB
121  // Inject global routes from Node B, including transit network...
122  Ptr<GlobalRouter> globalRouterB = nB->GetObject<GlobalRouter> ();
123  globalRouterB->InjectRoute ("10.1.1.4", "255.255.255.252");
124  // ...and the host in network "C"
125  globalRouterB->InjectRoute ("192.168.1.1", "255.255.255.255");
126 
128  // In addition, nB needs a static route to nC so it knows what to do with stuff
129  // going to 192.168.1.1
130  Ipv4StaticRoutingHelper ipv4RoutingHelper;
131  Ptr<Ipv4StaticRouting> staticRoutingB = ipv4RoutingHelper.GetStaticRouting (ipv4B);
132  staticRoutingB->AddHostRouteTo (Ipv4Address ("192.168.1.1"), Ipv4Address ("10.1.1.6"),2);
133 
134  // Create the OnOff application to send UDP datagrams of size
135  // 210 bytes at a rate of 448 Kb/s
136  uint16_t port = 9; // Discard port (RFC 863)
137  OnOffHelper onoff ("ns3::UdpSocketFactory",
138  Address (InetSocketAddress (ifInAddrC.GetLocal (), port)));
139  onoff.SetConstantRate (DataRate (6000));
140  ApplicationContainer apps = onoff.Install (nA);
141  apps.Start (Seconds (1.0));
142  apps.Stop (Seconds (10.0));
143 
144  // Create a packet sink to receive these packets
145  PacketSinkHelper sink ("ns3::UdpSocketFactory",
147  apps = sink.Install (nC);
148  apps.Start (Seconds (1.0));
149  apps.Stop (Seconds (10.0));
150 
151  AsciiTraceHelper ascii;
152  p2p.EnableAsciiAll (ascii.CreateFileStream ("global-routing-injection32.tr"));
153  p2p.EnablePcapAll ("global-routing-injection32");
154 
155  Simulator::Run ();
157 
158  return 0;
159 }