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Ethical LAN Recon: Discover Devices & Services with Python
Presenter: Mr M Netshidzivhe

In this tutorial I demonstrate how to ethically discover devices on a local network and scan common ports using a Python script (Scapy). This is a defensive, educational demo — DO NOT use these techniques on networks you do not own or have explicit written permission to test.

🔧 What you'll get in this video
ARP-based LAN discovery to find live hosts
Basic TCP connect port scanning for common services
How to run the demo (sudo python3 lan_discover_and_scan.py --network 192.168.1.0/24
)
Explanation of results, limitations, and why you can't view HTTPS content
Practical hardening tips to secure your network

🛠️ Requirements
Python 3.8+
Scapy (`pip install scapy`)
Administrator / root privileges to run ARP scans
Run only on networks you own or have written permission to test