🔒 Secure Network & IDS Virtual Lab

The Secure Network & IDS Virtual Lab is a simulated cybersecurity environment that demonstrates various network threats and defensive measures. This virtual lab includes simulations for DDoS attacks and ARP spoofing within a robust mesh network topology. It features an internal DNS setup, comprehensive traffic logging, and a real-time intrusion detection system (IDS) using industry-standard tools like Wireshark and Snort.

---

📌 Overview

In today's networked world, understanding and mitigating cybersecurity threats is critical. This project sets up a controlled virtual lab where:

• Simulated Cyber Threats: You can observe the behavior of attacks such as Distributed Denial-of-Service (DDoS) and ARP spoofing.
• Mesh Network Topology: A complex network design that mimics real-world environments with redundant paths and interconnected nodes.
• Internal DNS: Provides name resolution within the lab while isolating external influences.
• Traffic Logging: Captures network data to analyze attack signatures and patterns.
• Intrusion Detection System (IDS): Utilizes Wireshark for packet capture and Snort for real-time threat detection, offering hands-on insights into network security monitoring.

---

📊 Key Features

• Cybersecurity Threat Simulation

  • DDoS Attack Simulation: Replicate massive network traffic floods to understand impact and mitigation strategies.
  • ARP Spoofing Simulation: Demonstrates how attackers can intercept or manipulate network traffic.

• Secure Mesh Network Architecture

  • A resilient network topology designed with redundancy and multiple interconnected nodes.
  • Internal DNS for secure name resolution and network segmentation.

• Traffic Analysis and Logging

  • Detailed logging of network packets for post-event analysis.
  • Real-time monitoring to capture suspicious patterns and anomalies.

• Intrusion Detection System (IDS) Implementation

  • Wireshark: For deep packet inspection and visual analysis.
  • Snort: For real-time threat detection, alerting, and block actions based on pre-configured rules.

---

🛠️ Technologies & Tools

• Operating System: Linux (or any Unix-based system recommended for network simulations)
• Network Simulation: Tools like GNS3 or VirtualBox for creating virtual labs
• Packet Analysis: Wireshark for packet capturing and analysis
• Intrusion Detection: Snort for detecting and alerting on suspicious activity
• DNS Services: BIND or dnsmasq for the internal DNS server
• Scripting & Automation: Bash, Python, or other automation tools for simulating attacks and managing lab environments

---

🔧 Getting Started

Prerequisites

• Operating System: Linux is recommended.
• Virtualization Software: GNS3, VirtualBox, or similar for setting up a virtual lab.
• Networking Tools: Wireshark, Snort, internal DNS server (e.g., BIND or dnsmasq).
• Basic Knowledge: Familiarity with Linux networking, packet analysis, and IDS configuration.

Installation & Setup

1. Clone the Repository

   git clone https://github.com/yourusername/secure-network-ids-lab.git
   cd secure-network-ids-lab

2. Install Dependencies

   • For Packet Capture & Analysis: Install Wireshark:

     sudo apt-get install wireshark

   • For Intrusion Detection: Install Snort:

     sudo apt-get install snort

   • Internal DNS Setup: Install and configure BIND or dnsmasq as per your network requirements.

3. Setup Virtual Lab Environment

   • Use GNS3 or VirtualBox to create a network topology that follows a mesh design. Configure multiple virtual nodes and ensure the internal DNS services are accessible to the network.
   • Configure logging by setting up syslog or custom logging scripts in /var/log/ to store network traffic data for further analysis.

4. Configure Snort

   • Customize Snort configuration files (usually found in /etc/snort/) with rules that monitor for DDoS patterns and ARP spoofing signatures.

   • Launch Snort in IDS mode:

     sudo snort -A console -q -c /etc/snort/snort.conf -i <interface>

5. Running Simulations

   • DDoS Simulation: Use custom scripts or network tools (e.g., hping3) to generate high volumes of traffic:

     hping3 --flood -p 80 <target_ip>

   • ARP Spoofing Simulation: Use tools like arpspoof to simulate ARP poisoning:

     sudo arpspoof -i <interface> -t <target_ip> <gateway_ip>

6. Monitoring & Analysis

   • Launch Wireshark to inspect live traffic on the network interface.
   • Check Snort alerts to verify that the IDS is detecting the simulated threat events.

---

🗺️ Project Structure

secure-network-ids-lab/
│
├── docs/                  # Additional documentation and configuration guidelines
├── configs/               # Configuration files for Snort, internal DNS, etc.
├── scripts/               # Automation scripts for simulations (DDoS, ARP spoofing)
├── logs/                  # Directory for storing traffic logs and IDS alerts
├── virtual_lab_setup.md   # Documentation on how to set up the virtual lab environment
└── README.md              # This documentation file

---

📈 Future Enhancements

• Expanded Threat Simulations: Incorporate additional attack scenarios like Man-in-the-Middle (MitM) or ransomware simulations.
• Automated Reporting: Generate and export detailed reports on network events and IDS alerts.
• GUI Enhancements: Develop a web-based dashboard for real-time network status, alerts, and configuration management.
• Integration with SIEM: Interface the lab with a Security Information and Event Management (SIEM) system for advanced analytics.

---

🤝 Contributing

Contributions and suggestions are welcome! If you wish to enhance this lab environment or add new simulation scenarios, please fork the repository and submit a pull request. For major changes, please open an issue first to discuss the proposal.

---

📄 License

This project is licensed under the MIT License. See the LICENSE file for details.

---

👨‍💻 Author

Obakeng Mdonyelwa 🔗 GitHub 🔗 LinkedIn