To implement an IPv6 protocol in ns3 is same as implementing the Pv4 protocol however it includes the particular concerns for IPv6.For best results in implementation feel free to address ns3simulation.com.
Below are the steps to follow the implementation for IPv6 in ns3.
Prerequisites
- ns3 Installation: Ensure ns3 is installed on your system.
- C++ Programming: Knowledge of C++ is essential.
- Understanding of ns3: Familiarity with ns-3 modules, particularly the IPv6 stack.
Steps to Implement an IPv6 Protocol
- Set Up the Development Environment
Make certain that you have installed ns3. If not, then download it from official ns3 website.
- Create a New Protocol Module
Navigate to the src directory in ns-3 and create a new directory for your protocol.
cd ns-3.XX/src
mkdir myipv6
cd myipv6
mkdir model helper test
3. Define the Protocol Classes and Headers
Create header and implementation files for your protocol in the model directory.
myipv6.h
#ifndef MYIPV6_H
#define MYIPV6_H
#include “ns3/ipv6-routing-protocol.h”
#include “ns3/ipv6-address.h”
#include “ns3/timer.h”
#include “ns3/node.h”
#include “ns3/socket.h”
#include “ns3/net-device.h”
#include “ns3/packet.h”
#include “ns3/nstime.h”
namespace ns3 {
class MyIpv6 : public Ipv6RoutingProtocol {
public:
static TypeId GetTypeId (void);
MyIpv6 ();
virtual ~MyIpv6 ();
virtual void DoDispose (void);
// Implement required virtual functions from Ipv6RoutingProtocol
virtual Ptr<Ipv6Route> RouteOutput (Ptr<Packet> p, const Ipv6Header &header,
Ptr<NetDevice> oif,
Socket::SocketErrno &sockerr);
virtual bool RouteInput (Ptr<const Packet> p, const Ipv6Header &header,
Ptr<const NetDevice> idev,
UnicastForwardCallback ucb,
MulticastForwardCallback mcb,
LocalDeliverCallback lcb,
ErrorCallback ecb);
virtual void NotifyInterfaceUp (uint32_t interface);
virtual void NotifyInterfaceDown (uint32_t interface);
virtual void NotifyAddAddress (uint32_t interface, Ipv6InterfaceAddress address);
virtual void NotifyRemoveAddress (uint32_t interface, Ipv6InterfaceAddress address);
virtual void SetIpv6 (Ptr<Ipv6> ipv6);
private:
// Define internal states and methods here
Ptr<Ipv6> m_ipv6;
};
} // namespace ns3
#endif // MYIPV6_H
myipv6.cc
#include “myipv6.h”
#include “ns3/log.h”
#include “ns3/simulator.h”
#include “ns3/ipv6-header.h”
#include “ns3/ipv6-route.h”
#include “ns3/inet6-socket-address.h”
#include “ns3/udp-socket-factory.h”
#include “ns3/uinteger.h”
namespace ns3 {
NS_LOG_COMPONENT_DEFINE (“MyIpv6”);
NS_OBJECT_ENSURE_REGISTERED (MyIpv6);
TypeId MyIpv6::GetTypeId (void) {
static TypeId tid = TypeId (“ns3::MyIpv6”)
.SetParent<Ipv6RoutingProtocol> ()
.SetGroupName (“Internet”)
.AddConstructor<MyIpv6> ();
return tid;
}
MyIpv6::MyIpv6 () {
NS_LOG_FUNCTION (this);
}
MyIpv6::~MyIpv6 () {
NS_LOG_FUNCTION (this);
}
void MyIpv6::DoDispose () {
NS_LOG_FUNCTION (this);
Ipv6RoutingProtocol::DoDispose ();
}
Ptr<Ipv6Route> MyIpv6::RouteOutput (Ptr<Packet> p, const Ipv6Header &header,
Ptr<NetDevice> oif, Socket::SocketErrno &sockerr) {
NS_LOG_FUNCTION (this << p << header << oif);
// Implement route output logic here
return Ptr<Ipv6Route> ();
}
bool MyIpv6::RouteInput (Ptr<const Packet> p, const Ipv6Header &header,
Ptr<const NetDevice> idev, UnicastForwardCallback ucb,
MulticastForwardCallback mcb, LocalDeliverCallback lcb,
ErrorCallback ecb) {
NS_LOG_FUNCTION (this << p << header << idev);
// Implement route input logic here
return false;
}
void MyIpv6::NotifyInterfaceUp (uint32_t interface) {
NS_LOG_FUNCTION (this << interface);
}
void MyIpv6::NotifyInterfaceDown (uint32_t interface) {
NS_LOG_FUNCTION (this << interface);
}
void MyIpv6::NotifyAddAddress (uint32_t interface, Ipv6InterfaceAddress address) {
NS_LOG_FUNCTION (this << interface << address);
}
void MyIpv6::NotifyRemoveAddress (uint32_t interface, Ipv6InterfaceAddress address) {
NS_LOG_FUNCTION (this << interface << address);
}
void MyIpv6::SetIpv6 (Ptr<Ipv6> ipv6) {
NS_LOG_FUNCTION (this << ipv6);
m_ipv6 = ipv6;
}
} // namespace ns3
4. Integrate with ns-3 Build System
Update the wscript file in the src directory to include your new protocol.
src/myipv6/wscript
def build(bld):
module = bld.create_ns3_module(‘myipv6’, [‘core’, ‘network’, ‘internet’])
module.source = [
‘model/myipv6.cc’,
]
headers = bld(features=’ns3header’)
headers.module = ‘myipv6’
headers.source = [
‘model/myipv6.h’,
]
5. Create Helper and Test Classes
Create helper and test classes to facilitate the usage and testing of your protocol.
myipv6-helper.h
#ifndef MYIPV6_HELPER_H
#define MYIPV6_HELPER_H
#include “ns3/myipv6.h”
#include “ns3/node-container.h”
#include “ns3/ipv6-routing-helper.h”
namespace ns3 {
class MyIpv6Helper : public Ipv6RoutingHelper {
public:
MyIpv6Helper ();
MyIpv6Helper* Copy (void) const;
virtual Ptr<Ipv6RoutingProtocol> Create (Ptr<Node> node) const;
private:
};
} // namespace ns3
#endif // MYIPV6_HELPER_H
myipv6-helper.cc
#include “myipv6-helper.h”
#include “ns3/myipv6.h”
#include “ns3/ipv6-routing-protocol.h”
#include “ns3/ipv6-list-routing.h”
#include “ns3/log.h”
namespace ns3 {
NS_LOG_COMPONENT_DEFINE (“MyIpv6Helper”);
MyIpv6Helper::MyIpv6Helper () {
}
MyIpv6Helper* MyIpv6Helper::Copy (void) const {
return new MyIpv6Helper (*this);
}
Ptr<Ipv6RoutingProtocol> MyIpv6Helper::Create (Ptr<Node> node) const {
Ptr<MyIpv6> agent = CreateObject<MyIpv6> ();
node->AggregateObject (agent);
return agent;
}
} // namespace ns3
- Build and Test
- Rebuild ns-3 to include your new protocol.
./waf configure
./waf build
- Create test scripts to verify the implementation of your protocol.
scratch/test-myipv6.cc
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/internet-module.h”
#include “ns3/myipv6-helper.h”
#include “ns3/ipv6-static-routing-helper.h”
#include “ns3/ipv6-list-routing-helper.h”
using namespace ns3;
int main (int argc, char *argv[]) {
CommandLine cmd;
cmd.Parse (argc, argv);
NodeContainer nodes;
nodes.Create (2);
InternetStackHelper internet;
MyIpv6Helper myipv6;
Ipv6ListRoutingHelper list;
list.Add (myipv6, 10);
internet.SetRoutingHelper (list);
internet.Install (nodes);
// Add additional setup code here
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
7. Run and Debug
Run your test script and debug any issues that arise.
./waf –run scratch/test-myipv6
Overall, we had learned the implementation procedure in IPv6 protocol in ns3 environment and we also provide the implementation guidance with support for IPv6.