How to Implement TCP IP in OMNeT++

To implement the TCP/IP in OMNeT++ has needs to setup the simulation that models a network with the gadgets that communicate by the TCP/IP protocol stack and the INET framework in OMNeT++ has offers the comprehensive support for TCP/IP protocols. The given below is the steps to simulate the TCP/IP network using OMNeT++ and INET.

Step-by-Step Implementation:

Install OMNeT++ and INET Framework

Make sure we have OMNeT++ and the INET Framework installed.

Create a New OMNeT++ Project

Open OMNeT++ IDE: Start the OMNeT++ IDE.
Create a New Project: Go to File -> New -> OMNeT++ Project. Name the project like TCPIPSimulation.

Import INET into Your Project

Import INET: Right-click on project in the Project Explorer, select Properties. Go to Project References and check the INET project.
Copy INET Examples: Copy example configurations from the INET framework to project for reference.

Define the Network Topology

Make a new NED file to explain network topology contains hosts and routers using the TCP/IP stack.

Example: TCP/IP Network Topology (TCPIPNetwork.ned)

package tcpip;

import inet.node.inet.StandardHost;

import inet.node.inet.Router;

network TCPIPNetwork

{

parameters:

@display(“bgb=600,400”);

submodules:

host1: StandardHost {

@display(“p=100,200”);

}

host2: StandardHost {

@display(“p=500,200”);

}

router: Router {

@display(“p=300,200”);

}

connections:

host1.pppg++ <–> Eth10M <–> router.pppg++;

host2.pppg++ <–> Eth10M <–> router.pppg++;

}

In this example:

Host1 and host2 are standard hosts using the TCP/IP stack.
Router is a router facilitating communication between the hosts.
The Eth10M channel models a 10 Mbps Ethernet link.

Configure the Simulation

Produce an OMNeT++ initialization file to configure the bounds of the simulation.

Example: Configuration File (omnetpp.ini)

network = tcpip.TCPIPNetwork

sim-time-limit = 100s

# Visualization

*.visualizer.canvasVisualizer.displayBackground = true

*.visualizer.canvasVisualizer.displayGrid = true

# Host Configuration

*.host*.numTcpApps = 1

*.host*.tcpApp[0].typename = “TcpBasicClientApp”

*.host*.tcpApp[0].connectAddress = “host2”

*.host*.tcpApp[0].connectPort = 80

# TCP Configuration

*.host*.hasTcp = true

*.host*.hasUdp = true

# IP Address Configuration

*.host1.ipv4.config = “host1.xml”

*.host2.ipv4.config = “host2.xml”

*.router.ipv4.config = “router.xml”

Create IP Address Configuration Files

Generate XML files to outline the IP address configuration for each host and the router.

Example: IP Configuration File for host1 (host1.xml)

</interface>

<route>

</route>

</routing>

</config>

Example: IP Configuration File for host2 (host2.xml)

</interface>

<route>

</route>

</routing>

</config>

Example: IP Configuration File for router (router.xml)

</interface>

</config>

Run the Simulation

Build the Project: Right-click on project and choose Build Project.
Run the Simulation: Click on the green play button in the OMNeT++ IDE to start the simulation.

Here, we demonstrate the comprehensive procedure to execute the TCP/IP that was used in communication devices and the TCP/IP has been supported by INET framework. We include how to execute the results in the network simulation using the OMNeT+ simulator. We intend to provide the more data on how the TCP/IP will perform other simulation tool.

Attain simulation results and performance analysis for your projects to achieve optimal outcomes at ns3simulation.com. Additionally, receive assistance with implementing TCP/IP in OMNeT++ programming.