A Discrete-Event Network Simulator
API
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static-routing-slash32.cc
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1/*
2 * SPDX-License-Identifier: GPL-2.0-only
3 *
4 */
5
6// Test program for this 3-router scenario, using static routing
7//
8// (a.a.a.a/32)A<--x.x.x.0/30-->B<--y.y.y.0/30-->C(c.c.c.c/32)
9
10#include "ns3/applications-module.h"
11#include "ns3/core-module.h"
12#include "ns3/csma-module.h"
13#include "ns3/internet-module.h"
14#include "ns3/ipv4-static-routing-helper.h"
15#include "ns3/network-module.h"
16#include "ns3/point-to-point-module.h"
17
18#include <cassert>
19#include <fstream>
20#include <iostream>
21#include <string>
22
23using namespace ns3;
24
25NS_LOG_COMPONENT_DEFINE("StaticRoutingSlash32Test");
26
27int
28main(int argc, char* argv[])
29{
30 // Allow the user to override any of the defaults and the above
31 // DefaultValue::Bind ()s at run-time, via command-line arguments
32 CommandLine cmd(__FILE__);
33 cmd.Parse(argc, argv);
34
38
39 NodeContainer c = NodeContainer(nA, nB, nC);
40
42 internet.Install(c);
43
44 // Point-to-point links
45 NodeContainer nAnB = NodeContainer(nA, nB);
46 NodeContainer nBnC = NodeContainer(nB, nC);
47
48 // We create the channels first without any IP addressing information
50 p2p.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
51 p2p.SetChannelAttribute("Delay", StringValue("2ms"));
52 NetDeviceContainer dAdB = p2p.Install(nAnB);
53
54 NetDeviceContainer dBdC = p2p.Install(nBnC);
55
57 deviceA->SetAddress(Mac48Address::Allocate());
58 nA->AddDevice(deviceA);
59 deviceA->SetQueue(CreateObject<DropTailQueue<Packet>>());
60
62 deviceC->SetAddress(Mac48Address::Allocate());
63 nC->AddDevice(deviceC);
64 deviceC->SetQueue(CreateObject<DropTailQueue<Packet>>());
65
66 // Later, we add IP addresses.
68 ipv4.SetBase("10.1.1.0", "255.255.255.252");
69 Ipv4InterfaceContainer iAiB = ipv4.Assign(dAdB);
70
71 ipv4.SetBase("10.1.1.4", "255.255.255.252");
72 Ipv4InterfaceContainer iBiC = ipv4.Assign(dBdC);
73
74 Ptr<Ipv4> ipv4A = nA->GetObject<Ipv4>();
75 Ptr<Ipv4> ipv4B = nB->GetObject<Ipv4>();
76 Ptr<Ipv4> ipv4C = nC->GetObject<Ipv4>();
77
78 int32_t ifIndexA = ipv4A->AddInterface(deviceA);
79 int32_t ifIndexC = ipv4C->AddInterface(deviceC);
80
81 Ipv4InterfaceAddress ifInAddrA =
82 Ipv4InterfaceAddress(Ipv4Address("172.16.1.1"), Ipv4Mask("/32"));
83 ipv4A->AddAddress(ifIndexA, ifInAddrA);
84 ipv4A->SetMetric(ifIndexA, 1);
85 ipv4A->SetUp(ifIndexA);
86
87 Ipv4InterfaceAddress ifInAddrC =
88 Ipv4InterfaceAddress(Ipv4Address("192.168.1.1"), Ipv4Mask("/32"));
89 ipv4C->AddAddress(ifIndexC, ifInAddrC);
90 ipv4C->SetMetric(ifIndexC, 1);
91 ipv4C->SetUp(ifIndexC);
92
93 Ipv4StaticRoutingHelper ipv4RoutingHelper;
94 // Create static routes from A to C
95 Ptr<Ipv4StaticRouting> staticRoutingA = ipv4RoutingHelper.GetStaticRouting(ipv4A);
96 // The ifIndex for this outbound route is 1; the first p2p link added
97 staticRoutingA->AddHostRouteTo(Ipv4Address("192.168.1.1"), Ipv4Address("10.1.1.2"), 1);
98 Ptr<Ipv4StaticRouting> staticRoutingB = ipv4RoutingHelper.GetStaticRouting(ipv4B);
99 // The ifIndex we want on node B is 2; 0 corresponds to loopback, and 1 to the first point to
100 // point link
101 staticRoutingB->AddHostRouteTo(Ipv4Address("192.168.1.1"), Ipv4Address("10.1.1.6"), 2);
102 // Create the OnOff application to send UDP datagrams of size
103 // 210 bytes at a rate of 448 Kb/s
104 uint16_t port = 9; // Discard port (RFC 863)
105 OnOffHelper onoff("ns3::UdpSocketFactory",
106 Address(InetSocketAddress(ifInAddrC.GetLocal(), port)));
107 onoff.SetConstantRate(DataRate(6000));
108 ApplicationContainer apps = onoff.Install(nA);
109 apps.Start(Seconds(1.0));
110 apps.Stop(Seconds(10.0));
111
112 // Create a packet sink to receive these packets
113 PacketSinkHelper sink("ns3::UdpSocketFactory",
115 apps = sink.Install(nC);
116 apps.Start(Seconds(1.0));
117 apps.Stop(Seconds(10.0));
118
119 AsciiTraceHelper ascii;
120 p2p.EnableAsciiAll(ascii.CreateFileStream("static-routing-slash32.tr"));
121 p2p.EnablePcapAll("static-routing-slash32");
122
125
126 return 0;
127}
a polymophic address class
Definition address.h:90
holds a vector of ns3::Application pointers.
void Start(Time start) const
Start all of the Applications in this container at the start time given as a parameter.
void Stop(Time stop) const
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter.
Manage ASCII trace files for device models.
Ptr< OutputStreamWrapper > CreateFileStream(std::string filename, std::ios::openmode filemode=std::ios::out)
Create and initialize an output stream object we'll use to write the traced bits.
Parse command-line arguments.
Class for representing data rates.
Definition data-rate.h:78
A FIFO packet queue that drops tail-end packets on overflow.
an Inet address class
aggregate IP/TCP/UDP functionality to existing Nodes.
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
Ipv4 addresses are stored in host order in this class.
static Ipv4Address GetAny()
Access to the IPv4 forwarding table, interfaces, and configuration.
Definition ipv4.h:69
a class to store IPv4 address information on an interface
Ipv4Address GetLocal() const
Get the local address.
holds a vector of std::pair of Ptr<Ipv4> and interface index.
a class to represent an Ipv4 address mask
Helper class that adds ns3::Ipv4StaticRouting objects.
Ptr< Ipv4StaticRouting > GetStaticRouting(Ptr< Ipv4 > ipv4) const
Try and find the static routing protocol as either the main routing protocol or in the list of routin...
static Mac48Address Allocate()
Allocate a new Mac48Address.
holds a vector of ns3::NetDevice pointers
keep track of a set of node pointers.
A helper to make it easier to instantiate an ns3::OnOffApplication on a set of nodes.
A helper to make it easier to instantiate an ns3::PacketSinkApplication on a set of nodes.
Build a set of PointToPointNetDevice objects.
Smart pointer class similar to boost::intrusive_ptr.
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
Definition simulator.cc:131
static void Run()
Run the simulation.
Definition simulator.cc:167
Hold variables of type string.
Definition string.h:45
uint16_t port
Definition dsdv-manet.cc:33
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition log.h:191
Ptr< T > CreateObject(Args &&... args)
Create an object by type, with varying number of constructor parameters.
Definition object.h:619
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition nstime.h:1308
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Ptr< PacketSink > sink
Pointer to the packet sink application.
Definition wifi-tcp.cc:44