🐍 Packet Sniffer CLI (C++)

A multithreaded packet sniffer written in C++ that captures and parses live network traffic from a specified interface. Supports Ethernet, IPv4/IPv6, TCP, UDP, ICMP, and HTTP protocols with clean, color-coded CLI output.

✨ Features

• 🔎 Live Packet Capture — Monitor traffic in real-time from a given network interface.
• 🧠 Protocol Parsing — Parses Ethernet, IP, TCP, UDP, ICMP (v4 & v6), and basic HTTP headers.
• 🎨 Colored CLI Output — Highlights different protocols for better readability using ANSI colors.
• ⚙️ Multithreaded — Separate threads for capturing and processing packets to improve performance.
• 🎯 Basic Filtering — Filter packets by protocol or port (coming soon).

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🚀 Getting Started

🧱 Prerequisites

• A Linux-based OS (recommended)
• g++ (with C++17 support or higher)
• Root privileges (to open raw sockets)

🔧 Build Instructions

git clone https://github.com/nubea/packet-sniffer.git
cd packet-sniffer
make
./sniffer <interface>
./sniffer --help