223 lines
7.9 KiB
C++
223 lines
7.9 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2009 Strasbourg University
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: David Gross <gdavid.devel@gmail.com>
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* Sebastien Vincent <vincent@clarinet.u-strasbg.fr>
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*/
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// Network topology
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// //
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// // n0 R n1
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// // | _ |
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// // ====|_|====
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// // router
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// // - R sends RA to n0's subnet (2001:1::/64 and 2001:ABCD::/64);
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// // - R interface to n0 has two addresses with following prefixes 2001:1::/64 and 2001:ABCD::/64;
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// // - R sends RA to n1's subnet (2001:2::/64);
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// // - n0 ping6 n1.
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// //
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// // - Tracing of queues and packet receptions to file "radvd-two-prefix.tr"
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#include <fstream>
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#include "ns3/core-module.h"
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#include "ns3/internet-module.h"
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#include "ns3/csma-module.h"
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#include "ns3/applications-module.h"
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#include "ns3/ipv6-routing-table-entry.h"
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#include "ns3/radvd.h"
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#include "ns3/radvd-interface.h"
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#include "ns3/radvd-prefix.h"
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#include "ns3/ipv6-static-routing-helper.h"
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE ("RadvdTwoPrefixExample");
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/**
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* \class StackHelper
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* \brief Helper to set or get some IPv6 information about nodes.
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*/
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class StackHelper
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{
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public:
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/**
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* \brief Add an address to a IPv6 node.
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* \param n node
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* \param interface interface index
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* \param address IPv6 address to add
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*/
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inline void AddAddress (Ptr<Node>& n, uint32_t interface, Ipv6Address address)
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{
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Ptr<Ipv6> ipv6 = n->GetObject<Ipv6> ();
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ipv6->AddAddress (interface, address);
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}
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/**
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* \brief Print the routing table.
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* \param n the node
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*/
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inline void PrintRoutingTable (Ptr<Node>& n)
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{
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Ptr<Ipv6StaticRouting> routing = 0;
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Ipv6StaticRoutingHelper routingHelper;
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Ptr<Ipv6> ipv6 = n->GetObject<Ipv6> ();
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uint32_t nbRoutes = 0;
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Ipv6RoutingTableEntry route;
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routing = routingHelper.GetStaticRouting (ipv6);
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std::cout << "Routing table of " << n << " : " << std::endl;
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std::cout << "Destination\t\t\t\t" << "Gateway\t\t\t\t\t" << "Interface\t" << "Prefix to use" << std::endl;
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nbRoutes = routing->GetNRoutes ();
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for (uint32_t i = 0; i < nbRoutes; i++)
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{
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route = routing->GetRoute (i);
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std::cout << route.GetDest () << "\t"
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<< route.GetGateway () << "\t"
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<< route.GetInterface () << "\t"
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<< route.GetPrefixToUse () << "\t"
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<< std::endl;
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}
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}
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};
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int main (int argc, char** argv)
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{
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#if 0
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LogComponentEnable ("Ipv6L3Protocol", LOG_LEVEL_ALL);
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LogComponentEnable ("Ipv6RawSocketImpl", LOG_LEVEL_ALL);
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LogComponentEnable ("Icmpv6L4Protocol", 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 ("RadvdApplication", LOG_LEVEL_ALL);
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LogComponentEnable ("Ping6Application", LOG_LEVEL_ALL);
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#endif
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CommandLine cmd;
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cmd.Parse (argc, argv);
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NS_LOG_INFO ("Create nodes.");
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Ptr<Node> n0 = CreateObject<Node> ();
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Ptr<Node> r = CreateObject<Node> ();
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Ptr<Node> n1 = CreateObject<Node> ();
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NodeContainer net1 (n0, r);
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NodeContainer net2 (r, n1);
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NodeContainer all (n0, r, n1);
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StackHelper stackHelper;
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NS_LOG_INFO ("Create IPv6 Internet Stack");
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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 d1 = csma.Install (net1); /* n0 - R */
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NetDeviceContainer d2 = csma.Install (net2); /* R - n1 */
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NS_LOG_INFO ("Create networks and assign IPv6 Addresses.");
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Ipv6AddressHelper ipv6;
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/* first subnet */
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ipv6.SetBase (Ipv6Address ("2001:1::"), Ipv6Prefix (64));
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NetDeviceContainer tmp;
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tmp.Add (d1.Get (0)); /* n0 */
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Ipv6InterfaceContainer iic1 = ipv6.AssignWithoutAddress (tmp); /* n0 interface */
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NetDeviceContainer tmp2;
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tmp2.Add (d1.Get (1)); /* R */
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Ipv6InterfaceContainer iicr1 = ipv6.Assign (tmp2); /* R interface to the first subnet is just statically assigned */
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iicr1.SetRouter (0, true);
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iic1.Add (iicr1);
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/* add another IPv6 address for second prefix advertised on first subnet */
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stackHelper.AddAddress (r, iic1.GetInterfaceIndex (1), Ipv6Address ("2001:ABCD::2"));
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/* second subnet R - n1 */
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ipv6.SetBase (Ipv6Address ("2001:2::"), Ipv6Prefix (64));
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NetDeviceContainer tmp3;
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tmp3.Add (d2.Get (0)); /* R */
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Ipv6InterfaceContainer iicr2 = ipv6.Assign (tmp3); /* R interface */
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iicr2.SetRouter (0, true);
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NetDeviceContainer tmp4;
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tmp4.Add (d2.Get (1)); /* n1 */
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Ipv6InterfaceContainer iic2 = ipv6.AssignWithoutAddress (tmp4);
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iic2.Add (iicr2);
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/* radvd configuration */
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Ipv6Address prefix ("2001:ABCD::0"); /* create the prefix */
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Ipv6Address prefixBis ("2001:1::0"); /* create the prefix */
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Ipv6Address prefix2 ("2001:2::0"); /* create the prefix */
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uint32_t indexRouter = iic1.GetInterfaceIndex (1); /* R interface (n0 - R) */
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uint32_t indexRouter2 = iic2.GetInterfaceIndex (1); /* R interface (R - n1) */
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Ptr<Radvd> radvd = CreateObject<Radvd> ();
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Ptr<RadvdInterface> routerInterface = Create<RadvdInterface> (indexRouter, 2000, 1000);
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Ptr<RadvdPrefix> routerPrefix = Create<RadvdPrefix> (prefix, 64, 3, 5);
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Ptr<RadvdPrefix> routerPrefixBis = Create<RadvdPrefix> (prefixBis, 64, 3, 5);
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Ptr<RadvdInterface> routerInterface2 = Create<RadvdInterface> (indexRouter2, 2000, 1000);
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Ptr<RadvdPrefix> routerPrefix2 = Create<RadvdPrefix> (prefix2, 64, 3, 5);
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/* first interface advertise two prefixes (2001:1::/64 and 2001:ABCD::/64) */
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/* prefix is added in the inverse order in packet */
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routerInterface->AddPrefix (routerPrefix);
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routerInterface->AddPrefix (routerPrefixBis);
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routerInterface2->AddPrefix (routerPrefix2);
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radvd->AddConfiguration (routerInterface);
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radvd->AddConfiguration (routerInterface2);
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r->AddApplication (radvd);
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radvd->SetStartTime (Seconds (1.0));
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radvd->SetStopTime (Seconds (2.0));
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/* Create a Ping6 application to send ICMPv6 echo request from n0 to n1 via R */
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uint32_t packetSize = 1024;
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uint32_t maxPacketCount = 8;
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Time interPacketInterval = Seconds (1.);
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Ping6Helper ping6;
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/* ping6.SetLocal (iic1.GetAddress (0, 1)); */
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ping6.SetRemote (Ipv6Address ("2001:2::200:ff:fe00:4")); /* should be n1 address after autoconfiguration */
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ping6.SetIfIndex (iic1.GetInterfaceIndex (0));
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ping6.SetAttribute ("MaxPackets", UintegerValue (maxPacketCount));
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ping6.SetAttribute ("Interval", TimeValue (interPacketInterval));
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ping6.SetAttribute ("PacketSize", UintegerValue (packetSize));
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ApplicationContainer apps = ping6.Install (net1.Get (0));
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apps.Start (Seconds (2.0));
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apps.Stop (Seconds (9.0));
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/* RA should be received, two prefixes + routes + default route should be present */
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Simulator::Schedule (Seconds (2.0), &StackHelper::PrintRoutingTable, &stackHelper, n0);
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/* at the end, RA addresses and routes should be cleared */
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Simulator::Schedule (Seconds (10.0), &StackHelper::PrintRoutingTable, &stackHelper, n0);
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AsciiTraceHelper ascii;
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csma.EnableAsciiAll (ascii.CreateFileStream ("radvd-two-prefix.tr"));
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csma.EnablePcapAll (std::string ("radvd-two-prefix"), true);
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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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}
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