To Simulate an Hping3 SYN Flood Attack in OPNET has includes a setting of attacker node to transfer and extreme number of TCP SYN packets to a goal server. These kinds of attacks actions of TCP handshake through introducing links where are never completed, causing the goal server to assign their resources for every unfinished connection and potentially leading to denial of service (DoS).
Here’s how to simulate an Hping3 SYN Flood Attack using OPNET:
Steps to Simulate Hping3 SYN Flood Attack Projects Using OPNET
- Set Up OPNET Environment
- Open OPNET Modeler we build a new project and name it rather like “SYN Flood Attack Simulation.”
- Setting the project workspace and select a topology that contains both the attacker and the target server.
- Design Network Topology
- Build a network topology that includes:
- Target server: This will be the victim of the SYN flood attack.
- Attacker node: These nodes will be replication of the SYN flood attack, transfer numerous SYN packets to the target.
- Clients and routers: Involve the legitimate clients and routers to builds background traffic which assistances we follow on how the SYN flood affects regular transmission.
- Attach this device utilized appropriate connections like as wired Ethernet or wireless, reliant on the network setting.
- Configure Legitimate Network Traffic
- Configure the normal application traffic among legitimate clients and the target server. In Application Configuration, describe the general applications, like as:
- HTTP/HTTPS for web congestion.
- FTP for file transfers.
- VoIP for real-time transmissions.
- Utilized the Profile Configuration to allows this application for clients we building a consistency of background congestion to replicate their general activity on the goal of server.
- Configure the Attacker Node for SYN Flood Attack
- Configure the attacker node to transfer the continuous of TCP SYN packets to the target server:
- Packet Type: Utilized TCP as the protocol and setting the packet kinds as a SYN (synchronization) packet and introducing the TCP handshake devoid of finishing it.
- Destination IP and Port: Setting the destination IP address which target server. Utilized a general port such as 80 (HTTP) or 443 (HTTPS) or many other open ports on the server.
- Packet Rate: Setting the attacker node to transfer SYN packets at a high frequency. Configure the inter-arrival duration to a minimum value to high the rate of packets transfers per second.
- Spoofed Source IP: Optionally, set up their attacker to utilized arbitrary or spoofed source IP addresses that replicates the Hping3’s capability of spoof addresses we creating it harder for the server to findings and block the attack.
- Define SYN Flood Attack Intensity
- Adjust the parameters metrices for control the intensity of the SYN flood:
- High Intensity: configure the packet-sending rate to the maximum accessible frequency of replication a high-volume flood which rapidly consumes server resources.
- Stealthy Mode: Lower the packet-sending frequency to replicate a slower, continued their attack which can be harder to finding nevertheless still disruptive duration.
- Configure a specific time for the attack it initially legitimates after the traffic is creates, assigns we demonstrated the server’s performance before and during the attack.
- Enable Data Collection for Monitoring
- Configure the data collection on the target server and network devices to follow the effect of the SYN flood:
- Connection Queue Size: Follow the amount of half-open networks on the target server to demonstrate the SYN flood attack consumes network resources.
- Throughput: Calculate the throughput on the target server to findings the high abnormal in SYN packet capacity.
- CPU and Memory Usage: Follow on CPU and memory usage of the target server to regulate it is overcome through process the external of SYN requests.
- Response Time and Delay: Observe on response times and delay for valid requirements to assigns on how the attack affects regular transmission.
- Run the Simulation
- Initially the replication of OPNET for assigning their attacker to estimate the SYN flood though legitimate clients continue to transmission through the target server.
- Follow the behaviour of network and target server for particularly the effect on response duration, connection stability, and server resource usage.
- Analyse Results
- Utilized a OPNET’s analysis tools to assigns the impacts of SYN flood on network and server performance:
- Connection Queue Saturation: Checked it the connection queue on the target server reaches its boundaries we avoid legitimate clients from creating new connections.
- CPU and Memory Utilization: Analyse resource utilized on the target server to decides it the SYN flood consumes their CPU and memory resources.
- Throughput Analysis: Track the throughput data for illustrative the SYN flood significantly high the incoming traffic and it indicates which the server is overcome through SYN packets.
- Latency and Response Time: Inspect delays in legitimate traffic as SYN floods frequently increase the latency and response duration due to server overload.
- Experiment with Different Attack Parameters
- Regulate the attack’s frequency and time to replicate different levels of intensity:
- Short Burst Attack: Setting a high-intensity of SYN flood that lasts for a detail duration of temporary denial of service.
- Sustained Low-Intensity Attack: Transfer the SYN packets at a lower rate over a longer period of replicating a stealthy attack that gradually reduces server resources.
- Which makes it harder for the target server to filter out malicious congestion and research through spoofed IP addresses for the SYN packets to replicate random source IPs.
- Implement Countermeasures (Optional)
- Validate the multiple defences for follow on how they prevent a SYN flood attack:
- SYN Cookies: Setting the target server for utilized SYN cookies, that support protect against SYN flood attacks through not assigning the resources until the handshake finishes.
- Rate Limiting: Execute the rate limiting on the target server or routers to minimum the number of SYN requests per second.
- Firewall Filtering: Setting a firewall to findings and block frequent SYN packets from the same or suspicious IP addresses.
- Intrusion Detection System (IDS): Ensure the IDS on the network to findings unusual SYN flood model and alert administrators.
This design has given you the general steps to create a simulation network which help us to simulate the Hping3 SYN Flood attack in the OPNET environment and also, we provide how to attach the enhance features to the simulation. If you have any queries about this approach, we will guide you.
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