How to Implement ping sweep attack in OMNeT++

To implementing a ping sweep attack in OMNeT++  has contain to generate the simulation where one or more attackers thoroughly ping a range of IP addresses to classify active hosts on a network. Here, we provide the brief procedures on how to implement the ping sweep attack in OMNeT++:

Step-by-Step Implementation:

1. Set up OMNeT++ and INET Framework

• Make certain that OMNeT++ and the INET framework are installed and configured correctly. The INET framework delivers essential modules for emulate network protocols that contains ICMP that used in a ping sweep.

2. Define the Network Topology

• Generate a network topology that contains numerous nodes, like hosts, routers, and an attacker node.
• Describe these nodes and their connections in a .ned file.

Example:

network PingSweepNetwork

{

submodules:

attacker: StandardHost;

host1: StandardHost;

host2: StandardHost;

host3: StandardHost;

router: Router;

connections:

attacker.ethg++ <–> Eth10G <–> router.ethg++;

router.ethg++ <–> Eth10G <–> host1.ethg++;

router.ethg++ <–> Eth10G <–> host2.ethg++;

router.ethg++ <–> Eth10G <–> host3.ethg++;

}

3. Configure the Attacker Node

• The attacker node should be configured to send ICMP Echo Requests (ping) to a range of IP addresses to classify active hosts. This can be attained by adjusting or generating an application module that sends ICMP packets.
• We need to use the PingApp module offered by the INET framework, or generate a custom module.

Example (using PingApp):

*.attacker.numApps = 1

*.attacker.app[0].typename = “PingApp”

*.attacker.app[0].destAddr = “host1;host2;host3”

*.attacker.app[0].startTime = 1s

*.attacker.app[0].sendInterval = 1s

*.attacker.app[0].count = 1

In this configuration:

• destAddr specifies the IP addresses or host names to ping. We need to specify multiple hosts separated by semicolons.
• startTime determines when the ping sweep starts.
• sendInterval is the time interval between pings.
• Count specifies the number of pings to send to each host.

4. Configure the Target Hosts

• The hosts that are being pinged should be configured to respond to ICMP Echo Requests. This is generally the default characteristics for hosts in the INET framework.
• No special configuration is needed unless we want to emulate hosts that are unresponsive like firewalled or down.

5. Run the Simulation

• Compile OMNeT++ project and execute the simulation.
• Monitor how the attacker sends ICMP Echo Requests to the particular IP addresses and how the hosts respond.

6. Analyse the Results

• Use OMNeT++’s built-in tools to monitor the network traffic. We need to evaluate the ICMP traffic to see which hosts responded to the pings.
• We generate logs or statistics to keep track of which hosts were detected as active.

7. Enhancements and Variations

• Increase the Range: To emulate a broader ping sweep, we need to increase the range of IP addresses being pinged.
• Randomize Targets: Instead of sequentially pinging addresses and can randomize the order to avoid detection.
• Simulate Countermeasures: Implement defence mechanisms such as firewalls or rate limiting, to see how they disturb the success of the ping sweep.
• Logging: Add logging to the attacker node to record which IP addresses responded to the ping sweep.

Example Files

We need to generate the following files as part of simulation:

• PingSweepNetwork.ned: Describes the network topology.
• omnetpp.ini: Contains configuration settings, including parameters for the ping sweep.
• PingSweepNetwork.cc: (Optional) Custom C++ code if we need more advanced features than what is delivered by the standard INET modules.

This page we discussed and learned how to identify the ping sweep attacks in the network using the OMNeT++. More information will be shared about the ping sweep attack and its execution in diverse simulations.

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