Network Packet Sniffer

A simple Python-based network packet sniffer built for Kali Linux. This tool captures and analyzes network traffic, providing insights into packets such as source/destination IP addresses, protocols, and payload data.

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How It Works

The packet sniffer uses the scapy library to capture and analyze network packets. Here's what it does:

1. Packet Capture:

   • The tool listens on a specified network interface (e.g., eth0 or wlan0).
   • It captures packets in real-time as they travel through the network.

2. Packet Analysis:

   • For each captured packet, the tool extracts key information:
     • Source IP: The IP address of the sender.
     • Destination IP: The IP address of the receiver.
     • Protocol: The network protocol used (e.g., TCP, UDP, ICMP).
     • Payload: The raw data being transmitted (if applicable).

3. Output:

   • The tool prints the extracted information to the terminal in a readable format.

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How to Use

Prerequisites

• Kali Linux (or any Linux distribution with Python 3).
• Python 3.x.
• The scapy library (install using pip).

Installation

1. Install Scapy:

   sudo apt update
   sudo apt install python3-pip
   pip3 install scapy
   

2. Clone the Repository:

   git clone https://github.com/yourusername/network-packet-sniffer.git
   cd network-packet-sniffer
   
   

3. Run the Script:

   sudo python3 packet_sniffer.py
   
   
   

4. Specify the Network Interface: When prompted, enter the network interface you want to sniff (e.g., eth0, wlan0).

The tool will start capturing and displaying packets.

$ sudo python3 packet_sniffer.py
Enter the network interface to sniff (e.g., eth0, wlan0): wlan0
[*] Starting packet capture on wlan0...

[+] Packet Captured:
 Source IP: 192.168.1.100
 Destination IP: 192.168.1.1
 Protocol: TCP
 Payload: b'GET / HTTP/1.1\r\nHost: example.com\r\n\r\n'

[+] Packet Captured:
 Source IP: 192.168.1.1
 Destination IP: 192.168.1.100
 Protocol: UDP
 Payload: b'\x00\x01\x02\x03'