To simulate wireless attacks in OMNeT++ has includes to generate a wireless network environment in which the malicious nodes perform threats like Denial of Service (DoS), eavesdropping, jamming, or Man-in-the-Middle (MITM) attacks. These simulations can help you to learn the effects of attacks on wireless network performance and validate different prevention approaches.
Key Components for a Wireless Attack Simulation:
- Legitimate Nodes: Devices participating in the wireless network (such as wireless clients, access points, and servers).
- Malicious Node: The attacker that act as wireless-specific attacks, like jamming, eavesdropping, or inserting malicious packets.
- Wireless Channel: The medium through which wireless communication takes place (e.g., IEEE 802.11 Wi-Fi, Zigbee, or other wireless protocols).
- Attack Types: The detailed wireless attack (such as jamming, packet injection, DoS, or MITM).
Common Wireless Attacks to Simulate:
- Jamming Attack: The attacker conducts noise or signals to interfere with the communication among legitimate devices.
- Packet Injection: The attacker inserts malicious packets into the wireless network to disturb communication or take control.
- Eavesdropping: The attacker eavesdrops to the communication among legitimate devices without actively contributing in the network.
- Man-in-the-Middle (MITM) Attack: The attacker interrupts communication among two legitimate devices and operates or discerns the data.
- Denial of Service (DoS): The attacker floods the network or access points with traffic, triggering disturbance.
Step-by-Step Guide to Simulate Wireless Attacks Using OMNeT++:
- Install OMNeT++ and INET Framework
- Download and install OMNeT++.
- Download and install the INET framework from INET GitHub repository. INET supports wireless communication protocols (such as IEEE 802.11) and delivered tools for replicates wireless networks.
- Understand Wireless Attack Types
Each attack needs different components and behaviour:
- Jamming: The attacker send continuous signals to interfere with legitimate wireless interaction.
- Packet Injection: The attacker inserts fake packets into the network, disturbing normal communication.
- Eavesdropping: The attacker passively eavesdrops to the wireless communication without changing the network traffic.
- MITM: The attacker interrupts and possibly changes interaction among two legitimate nodes.
- Set up a Wireless Network Topology in NED
Generate a network with legitimate wireless clients, an access point, and an attacker node. The attacker node can achieve different wireless assaults liable on the simulation configuration.
Example NED File for Wireless Attack Simulation:
network WirelessAttackNetwork {
submodules:
accessPoint: Ieee80211AccessPoint {
@display(“p=300,200”);
}
client[2]: Ieee80211Nic {
@display(“p=” + (100 + index * 200) + “,300”);
}
attacker: Ieee80211Nic {
@display(“p=200,100”);
}
connections allowunconnected:
for i=0..1 {
client[i].radio++ <–> accessPoint.radio++;
}
attacker.radio++ <–> accessPoint.radio++; // Attacker is close to the access point
}
Explanation:
- Access Point: The legitimate wireless access point that the clients interacts with.
- Clients: Two legitimate wireless devices interacting with the access point.
- Attacker: A malicious node that act as in wireless attacks on the communication among the clients and the access point.
- Configure Wireless Communication
Set up the wireless communication among the clients and the access point, using protocols such as IEEE 802.11 (Wi-Fi).
Example omnetpp.ini Configuration for Wireless Clients:
network = WirelessAttackNetwork
sim-time-limit = 100s
# Configure the wireless access point
**.accessPoint.numApps = 1
**.accessPoint.app[0].typename = “UdpSink” # Receive UDP traffic from clients
**.accessPoint.app[0].localPort = 5000
# Configure wireless clients
**.client[*].numApps = 1
**.client[*].app[0].typename = “UdpBasicApp” # Send UDP traffic to the access point
**.client[*].app[0].destAddresses = “accessPoint”
**.client[*].app[0].destPort = 5000
**.client[*].app[0].messageLength = 512B
**.client[*].app[0].sendInterval = uniform(1s, 2s)
- The clients are configured to transmit UDP packets to the access point, replicating legitimate communication.
- The access point performs as a server, receiving traffic from the clients.
- Implement Jamming Attack
A jamming attack can be replicated by having the attacker continuously send noise or irrelevant signals to disturb legitimate wireless communication.
Example C++ Code for JammingApp (Jamming Attack Application):
#include “inet/applications/base/ApplicationBase.h”
#include “inet/common/packet/Packet.h”
#include “inet/physicallayer/wireless/common/base/packetlevel/NoiseBase.h”
class JammingApp : public inet::ApplicationBase {
protected:
virtual void initialize(int stage) override;
virtual void handleMessage(cMessage *msg) override;
virtual void startJamming();
public:
JammingApp() {}
virtual ~JammingApp() {}
};
Define_Module(JammingApp);
void JammingApp::initialize(int stage) {
if (stage == inet::INITSTAGE_APPLICATION_LAYER) {
// Schedule jamming to start after 1 second
scheduleAt(simTime() + 1.0, new cMessage(“startJamming”));
}
}
void JammingApp::handleMessage(cMessage *msg) {
if (strcmp(msg->getName(), “startJamming”) == 0) {
startJamming();
}
delete msg;
}
void JammingApp::startJamming() {
for (int i = 0; i < 100; i++) {
// Create a jamming packet (empty or noise)
inet::Packet *packet = new inet::Packet(“JammingNoise”);
// Simulate noise in the wireless channel
auto noise = inet::makeShared<inet::physicallayer::NoiseBase>();
packet->insertAtFront(noise);
// Send the noise packet to disrupt communication
send(packet, “out”);
}
}
In this code:
- JammingApp sends out continuous noise packets into the wireless medium to interfere with real communication among the clients and the access point.
- Implement Packet Injection
In a packet injection attack, the attacker inserts fake or malicious packets into the wireless network to disturb communication.
Example C++ Code for PacketInjectionApp (Packet Injection Application):
#include “inet/applications/base/ApplicationBase.h”
#include “inet/common/packet/Packet.h”
#include “inet/networklayer/common/L3AddressResolver.h”
class PacketInjectionApp : public inet::ApplicationBase {
protected:
virtual void initialize(int stage) override;
virtual void handleMessage(cMessage *msg) override;
virtual void injectPacket();
public:
PacketInjectionApp() {}
virtual ~PacketInjectionApp() {}
};
Define_Module(PacketInjectionApp);
void PacketInjectionApp::initialize(int stage) {
if (stage == inet::INITSTAGE_APPLICATION_LAYER) {
// Schedule packet injection to start after 2 seconds
scheduleAt(simTime() + 2.0, new cMessage(“injectPacket”));
}
}
void PacketInjectionApp::handleMessage(cMessage *msg) {
if (strcmp(msg->getName(), “injectPacket”) == 0) {
injectPacket();
}
delete msg;
}
void PacketInjectionApp::injectPacket() {
// Create a fake packet with random content
inet::Packet *packet = new inet::Packet(“InjectedPacket”);
// Send the injected packet to the access point
auto controlInfo = new inet::Ipv4ControlInfo();
controlInfo->setDestAddr(inet::L3AddressResolver().resolve(“accessPoint”));
packet->setControlInfo(controlInfo);
send(packet, “out”);
}
In this code:
- PacketInjectionApp generates and transmit a fake packet to the access point to replicate the attack.
- Monitor and Capture Traffic
To monitor the wireless attacks, permit packet capture and evaluate the network traffic using Wireshark or OMNeT++’s built-in tools.
Enable Packet Capture in omnetpp.ini:
# Enable packet capture to analyze wireless attacks
**.pcapRecorder.enable = true
**.pcapRecorder.packetFilter = “all”
**.pcapRecorder.file = “output/wireless_attack.pcap”
This will create a .pcap file that can be measured with Wireshark to learn the behaviour of the wireless network in the course of the attack.
- Run the Simulation
Execute the simulation in OMNeT++ and monitor how the attacker disturbs communication among the clients and the access point using wireless attacks such as jamming or packet injection.
- Analyse Results
Once the simulation is complete, evaluate the following parameters:
- Packet loss: How much legitimate traffic is lost due to the attack?
- Throughput: Evaluate the network throughput and see how it is impacted by the wireless attack.
- Jamming Effectiveness: measure on how effective the jamming is in disturbing interaction among the clients and the access point.
- Injection Success: Regulate if the injected packets reach their target and what impact they have on legitimate communication.
- Extend the Simulation
We can prolong the wireless attack simulation by adding more complex characteristics:
- Eavesdropping: Replicate an attacker passively listening to the interaction among clients and access points without being classified.
- MITM Attacks: Execute an attacker that interrupts and manipulates the interaction among two legitimate wireless nodes.
- Defensive Mechanisms: validate intrusion detection systems (IDS), encryption, or frequency hopping approaches to defend against wireless attacks.
Example Projects for Wireless Attack Simulation:
- Jamming Attack Simulation: Replicate a jamming attack in which the attacker disturbs communication among wireless devices by routing continuous noise.
- Packet Injection Attack: Replicate a packet injection attack in which the attacker injects malicious packets into the wireless network to disturb interaction.
- MITM Attack Simulation: Emulate a man-in-the-middle attack in which the attacker interrupts and manipulates wireless communication among clients and access points.
- Wireless Eavesdropping Simulation: Replicate a scenario in which the attacker passively eavesdrops to wireless communication without changing it.
- Mitigating Wireless Attacks: Execute and validate defences such as signal jamming detection, encryption, and frequency hopping to prevent wireless attacks.
In this module, we deliver the information through the instruction regarding to the wireless attacks project that were simulated using OMNeT++. Additional details regarding the wireless attacks will also be provided.
For projects focused on simulating wireless attacks using the OMNeT++ tool, we recommend consulting the experts at phdprime.com, who provide exceptional guidance in simulation. Our areas of expertise include Denial of Service (DoS), eavesdropping, jamming, and Man-in-the-Middle (MITM) attacks. You can rely on us for the best support in your endeavors.
