To simulate an Address Protocol project using NS3, which could mean replicating several address-related protocols, like Address Resolution Protocol (ARP), IPv4/IPv6 Addressing, or Dynamic Host Configuration Protocol (DHCP). For each of these protocols are deals with various features of IP addressing and mapping among the logical and physical addresses in a network. Here’s a simple instruction on how to simulate common address protocols in NS3:
Steps to Simulate Address Protocol Projects in NS3
- Simulating ARP (Address Resolution Protocol) in NS3
ARP maps an IP address to a MAC (physical) address. In NS3, ARP is constructed into the Internet stack, and then we can monitor its behaviour during communication among the nodes.
Example: Simulating ARP in NS3
This instance simulates a basic network in which ARP is utilised to resolve addresses among the nodes.
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/internet-module.h”
#include “ns3/point-to-point-module.h”
#include “ns3/applications-module.h”
using namespace ns3;
int main (int argc, char *argv[])
{
// Step 1: Create nodes
NodeContainer nodes;
nodes.Create (2); // Two nodes
// Step 2: Create point-to-point links between nodes
PointToPointHelper p2p;
p2p.SetDeviceAttribute (“DataRate”, StringValue (“10Mbps”));
p2p.SetChannelAttribute (“Delay”, StringValue (“2ms”));
NetDeviceContainer devices;
devices = p2p.Install (nodes);
// Step 3: Install the Internet stack (ARP is part of it)
InternetStackHelper internet;
internet.Install (nodes);
// Step 4: Assign IP addresses
Ipv4AddressHelper ipv4;
ipv4.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = ipv4.Assign (devices);
// Step 5: Set up a UDP Echo server on node 1
UdpEchoServerHelper echoServer (9);
ApplicationContainer serverApps = echoServer.Install (nodes.Get (1)); // Server on node 1
serverApps.Start (Seconds (1.0));
serverApps.Stop (Seconds (10.0));
// Step 6: Set up a UDP Echo client on node 0
UdpEchoClientHelper echoClient (interfaces.GetAddress (1), 9); // Client sends to server on node 1
echoClient.SetAttribute (“MaxPackets”, UintegerValue (1));
echoClient.SetAttribute (“Interval”, TimeValue (Seconds (1.0)));
echoClient.SetAttribute (“PacketSize”, UintegerValue (1024));
ApplicationContainer clientApps = echoClient.Install (nodes.Get (0)); // Client on node 0
clientApps.Start (Seconds (2.0));
clientApps.Stop (Seconds (10.0));
// Step 7: Enable packet capture to capture ARP traffic
p2p.EnablePcapAll (“arp-simulation”);
// Step 8: Run the simulation
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Key Points:
- ARP Traffic: The simulation captures ARP traffic using PCAP. We can be investigated this traffic using tools such as Wireshark to monitor ARP requests and replies.
- UDP Echo: The UDP Echo server and client are utilised to replicate the traffic among two nodes, that causing ARP resolution if required.
Running the Simulation:
- Build and Run:
./waf configure
./waf build
./waf –run arp-simulation
- Analyze ARP Traffic: Open the generated .pcap file in Wireshark to observe the ARP requests and replies.
- Simulating DHCP (Dynamic Host Configuration Protocol) in NS3
DHCP is utilised to allocate an IP addresses actively to hosts. NS3 does not natively support DHCP, however we can be replicated DHCP-like behaviour by allocating an IP addresses dynamically in the simulation.
Example: Simulating DHCP-like Behavior
In this instance, we manually allocate IP addresses during the simulation to mimic DHCP.
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/internet-module.h”
#include “ns3/point-to-point-module.h”
#include “ns3/applications-module.h”
using namespace ns3;
int main (int argc, char *argv[])
{
// Step 1: Create nodes
NodeContainer nodes;
nodes.Create (3); // One DHCP server and two clients
// Step 2: Create point-to-point links
PointToPointHelper p2p;
p2p.SetDeviceAttribute (“DataRate”, StringValue (“10Mbps”));
p2p.SetChannelAttribute (“Delay”, StringValue (“2ms”));
NetDeviceContainer devices = p2p.Install (nodes.Get(0), nodes.Get(1)); // Server to client 1
devices.Add (p2p.Install (nodes.Get(0), nodes.Get(2))); // Server to client 2
// Step 3: Install the Internet stack on all nodes
InternetStackHelper internet;
internet.Install (nodes);
// Step 4: Assign IP addresses dynamically (DHCP-like behavior)
Ipv4AddressHelper ipv4;
ipv4.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces1 = ipv4.Assign (devices.Get(0));
ipv4.SetBase (“10.1.2.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces2 = ipv4.Assign (devices.Get(1));
// Client nodes receive IP addresses (simulating DHCP behavior)
ipv4.SetBase (“10.1.3.0”, “255.255.255.0”);
ipv4.Assign (devices.Get(2));
// Step 5: Set up a UDP Echo server on node 0 (server)
UdpEchoServerHelper echoServer (9);
ApplicationContainer serverApps = echoServer.Install (nodes.Get (0));
serverApps.Start (Seconds (1.0));
serverApps.Stop (Seconds (10.0));
// Step 6: Set up a UDP Echo client on node 1 and node 2
UdpEchoClientHelper echoClient (interfaces1.GetAddress (0), 9);
echoClient.SetAttribute (“MaxPackets”, UintegerValue (1));
echoClient.SetAttribute (“Interval”, TimeValue (Seconds (1.0)));
echoClient.SetAttribute (“PacketSize”, UintegerValue (1024));
ApplicationContainer clientApps = echoClient.Install (nodes.Get (1));
clientApps.Start (Seconds (2.0));
clientApps.Stop (Seconds (10.0));
echoClient.Install (nodes.Get (2)).Start (Seconds (3.0)).Stop (Seconds (10.0));
// Step 7: Run the simulation
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Key Points:
- DHCP-like Behavior: The IP addresses are physically allocated in the simulation to simulate DHCP behaviour. In a real network, DHCP would allocate these addresses dynamically.
- Multiple Clients: Two client nodes are obtain an IP addresses and communicate with the server.
Running the Simulation:
- Build and Run:
./waf configure
./waf build
./waf –run dhcp-simulation
- Simulating IPv6 Addressing in NS3
IPv6 addressing can also be replicated in NS3 by set up IPv6 on the nodes. It permits for the use of IPv6 address auto-configuration or static address assignment.
Example: Simulating IPv6 Addressing
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/internet-module.h”
#include “ns3/point-to-point-module.h”
#include “ns3/applications-module.h”
using namespace ns3;
int main (int argc, char *argv[])
{
// Step 1: Create nodes
NodeContainer nodes;
nodes.Create (2); // Two nodes
// Step 2: Create point-to-point links between nodes
PointToPointHelper p2p;
p2p.SetDeviceAttribute (“DataRate”, StringValue (“10Mbps”));
p2p.SetChannelAttribute (“Delay”, StringValue (“2ms”));
NetDeviceContainer devices = p2p.Install (nodes);
// Step 3: Install the Internet stack with IPv6
InternetStackHelper internet;
internet.Install (nodes);
// Step 4: Assign IPv6 addresses
Ipv6AddressHelper ipv6;
ipv6.SetBase (Ipv6Address (“2001:db8::”), Ipv6Prefix (64));
Ipv6InterfaceContainer interfaces = ipv6.Assign (devices);
// Step 5: Set up a UDP Echo server on node 1
UdpEchoServerHelper echoServer (9);
ApplicationContainer serverApps = echoServer.Install (nodes.Get (1)); // Server on node 1
serverApps.Start (Seconds (1.0));
serverApps.Stop (Seconds (10.0));
// Step 6: Set up a UDP Echo client on node 0
UdpEchoClientHelper echoClient (interfaces.GetAddress (1, 1), 9); // Client sends to server on node 1
echoClient.SetAttribute (“MaxPackets”, UintegerValue (1));
echoClient.SetAttribute (“Interval”, TimeValue (Seconds (1.0)));
echoClient.SetAttribute (“PacketSize”, UintegerValue (1024));
ApplicationContainer clientApps = echoClient.Install (nodes.Get (0)); // Client on node 0
clientApps.Start (Seconds (2.0));
clientApps.Stop (Seconds (10.0));
// Step 7: Run the simulation
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Key Points:
- IPv6 Addressing: This instance explains how to allocate and utilise the IPv6 addresses in NS3.
- UDP Echo Application: The simulation uses the UDP Echo server and client to replicate an IPv6 communication among the nodes.
Running the Simulation:
- Build and Run:
./waf configure
./waf build
./waf –run ipv6-simulation
Summary:
- ARP can be mimicked directly within NS3 as part of the Internet stack, and traffic can be captured using PCAP.
- DHCP can be replicated by manually allocating dynamic IP addresses in NS3.
- IPv6 addressing is supported natively in NS3, permitting for the simulation of IPv6 networks.
A comprehensive step-by-step approach was undertaken for the Address Protocol, utilizing the simulation tool for simulate and analysis. If you would like more information about this topic we will offer.
We focus on Address Resolution Protocol (ARP), IPv4/IPv6 Addressing, and Dynamic Host Configuration Protocol (DHCP). Share your research details with us, and we will assist you in finding the best solutions. For simulating Address Protocol projects using the NS3 tool, visit phdprime.com. Provide us with your research information, and we will offer tailored solutions and support for performance evaluation.
