Nmap-Simulation: Network Scanning & Diagnostics Tool

Overview

This project is a Python-based Nmap-Simulation that mimics the functionality of Nmap, allowing users to perform network scanning, real-time messaging, and diagnostics. The system includes a central server managing multiple clients, supports TCP/IP communication, and provides ICMP functionalities for analyzing network performance.

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Features

✅ Network Scanning: Simulates Nmap by scanning open ports and detecting active hosts.
✅ Client-Server Communication: Enables clients to connect to a server for exchanging messages.
✅ Multi-Client Handling: Supports multiple simultaneous client connections.
✅ ICMP Support: Provides network diagnostics and latency checks using ICMP.
✅ TCP Latency Measurement: Measures response times of network devices.
✅ Real-Time Data Transfer: Facilitates instant communication and packet analysis.

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📂 File Structure

Nmap-Simulation/
│── Server.py          # Main server script handling network connections and scanning
│── Client.py          # Client script for interacting with the network scanner
│── ICMP.py            # Implements ICMP-based diagnostics and host discovery
│── TCP_Latency.py     # Measures response times of network devices
│── README.md          # Project documentation

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🔧 Installation & Setup

1️⃣ Prerequisites

Ensure you have Python 3.x installed.

2️⃣ Clone the Repository

git clone https://github.com/Erfan-Farahmandnejad/Nmap-Simulation.git
cd Nmap-Simulation

3️⃣ Running the Scripts

Starting the Server

python Server.py

Starting the Client

python Client.py

Performing ICMP Network Analysis

python ICMP.py

Measuring TCP Latency

python TCP_Latency.py

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📡 Project Functions

Server Functions (Server.py)

• start_server(port): Initializes and starts the server to listen for client connections.
• handle_client(client_socket, address): Manages client communication and processes requests.
• scan_ports(target_ip, port_range): Scans specified ports on a target machine to detect open services.

Client Functions (Client.py)

• connect_to_server(server_ip, port): Establishes a connection between the client and the server.
• send_message(message): Sends a message from the client to the server.
• receive_response(): Receives responses from the server after sending a request.

ICMP Functions (ICMP.py)

• send_icmp_echo_request(target_ip): Sends an ICMP Echo Request to the target IP to check if it is reachable.
• receive_icmp_reply(timeout=2): Waits for an ICMP Echo Reply within the specified timeout.
• measure_latency(target_ip): Measures the round-trip time (RTT) of packets sent to the target.
• analyze_packet_loss(target_ip, count=5): Sends multiple ICMP requests and calculates packet loss percentage.
• trace_route(target_ip, max_hops=30): Determines the path taken by packets to reach the target by incrementing the TTL value.

TCP Latency Functions (TCP_Latency.py)

• measure_tcp_latency(target_ip, port): Measures the response time of a target server on a given port.
• analyze_network_performance(target_ip, port_range): Evaluates network performance by checking multiple ports.

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📜 License

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