132 lines
4.1 KiB
C++
132 lines
4.1 KiB
C++
/*
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* Copyright (c) 2009 Strasbourg University
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*
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* Author: David Gross <gdavid.devel@gmail.com>
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*/
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// Network topology
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//
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// STA2
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// |
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// |
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// R1 R2
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// | |
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// | |
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// ------------
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// |
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// |
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// STA 1
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//
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// - Initial configuration :
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// - STA1 default route : R1
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// - R1 static route to STA2 : R2
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// - STA2 default route : R2
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// - STA1 send Echo Request to STA2 using its default route to R1
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// - R1 receive Echo Request from STA1, and forward it to R2
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// - R1 send an ICMPv6 Redirection to STA1 with Target STA2 and Destination R2
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// - Next Echo Request from STA1 to STA2 are directly sent to R2
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#include "ns3/core-module.h"
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#include "ns3/csma-module.h"
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#include "ns3/internet-apps-module.h"
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#include "ns3/internet-module.h"
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#include "ns3/ipv6-routing-table-entry.h"
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#include "ns3/ipv6-static-routing-helper.h"
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#include <fstream>
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE("Icmpv6RedirectExample");
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int
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main(int argc, char** argv)
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{
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bool verbose = false;
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CommandLine cmd(__FILE__);
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cmd.AddValue("verbose", "turn on log components", verbose);
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cmd.Parse(argc, argv);
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if (verbose)
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{
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LogComponentEnable("Icmpv6RedirectExample", LOG_LEVEL_INFO);
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LogComponentEnable("Icmpv6L4Protocol", LOG_LEVEL_INFO);
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LogComponentEnable("Ipv6L3Protocol", LOG_LEVEL_ALL);
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LogComponentEnable("Ipv6StaticRouting", LOG_LEVEL_ALL);
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LogComponentEnable("Ipv6Interface", LOG_LEVEL_ALL);
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LogComponentEnable("Icmpv6L4Protocol", LOG_LEVEL_ALL);
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LogComponentEnable("NdiscCache", LOG_LEVEL_ALL);
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}
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NS_LOG_INFO("Create nodes.");
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Ptr<Node> sta1 = CreateObject<Node>();
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Ptr<Node> r1 = CreateObject<Node>();
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Ptr<Node> r2 = CreateObject<Node>();
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Ptr<Node> sta2 = CreateObject<Node>();
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NodeContainer net1(sta1, r1, r2);
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NodeContainer net2(r2, sta2);
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NodeContainer all(sta1, r1, r2, sta2);
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InternetStackHelper internetv6;
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internetv6.Install(all);
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NS_LOG_INFO("Create channels.");
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CsmaHelper csma;
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csma.SetChannelAttribute("DataRate", DataRateValue(5000000));
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csma.SetChannelAttribute("Delay", TimeValue(MilliSeconds(2)));
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NetDeviceContainer ndc1 = csma.Install(net1);
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NetDeviceContainer ndc2 = csma.Install(net2);
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NS_LOG_INFO("Assign IPv6 Addresses.");
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Ipv6AddressHelper ipv6;
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ipv6.SetBase(Ipv6Address("2001:1::"), Ipv6Prefix(64));
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Ipv6InterfaceContainer iic1 = ipv6.Assign(ndc1);
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iic1.SetForwarding(2, true);
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iic1.SetForwarding(1, true);
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iic1.SetDefaultRouteInAllNodes(1);
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ipv6.SetBase(Ipv6Address("2001:2::"), Ipv6Prefix(64));
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Ipv6InterfaceContainer iic2 = ipv6.Assign(ndc2);
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iic2.SetForwarding(0, true);
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iic2.SetDefaultRouteInAllNodes(0);
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Ipv6StaticRoutingHelper routingHelper;
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// manually inject a static route to the second router.
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Ptr<Ipv6StaticRouting> routing = routingHelper.GetStaticRouting(r1->GetObject<Ipv6>());
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routing->AddHostRouteTo(iic2.GetAddress(1, 1),
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iic1.GetAddress(2, 0),
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iic1.GetInterfaceIndex(1));
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Ptr<OutputStreamWrapper> routingStream = Create<OutputStreamWrapper>(&std::cout);
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Ipv6RoutingHelper::PrintRoutingTableAt(Seconds(0), r1, routingStream);
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Ipv6RoutingHelper::PrintRoutingTableAt(Seconds(3), sta1, routingStream);
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NS_LOG_INFO("Create Applications.");
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uint32_t packetSize = 1024;
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uint32_t maxPacketCount = 5;
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PingHelper ping(iic2.GetAddress(1, 1));
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ping.SetAttribute("Count", UintegerValue(maxPacketCount));
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ping.SetAttribute("Size", UintegerValue(packetSize));
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ApplicationContainer apps = ping.Install(sta1);
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apps.Start(Seconds(2));
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apps.Stop(Seconds(10));
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AsciiTraceHelper ascii;
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csma.EnableAsciiAll(ascii.CreateFileStream("icmpv6-redirect.tr"));
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csma.EnablePcapAll("icmpv6-redirect", true);
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/* Now, do the actual simulation. */
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NS_LOG_INFO("Run Simulation.");
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Simulator::Run();
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Simulator::Destroy();
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NS_LOG_INFO("Done.");
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return 0;
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}
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