Attacking Layer 3 ( Lab ) by Lee McWhorter

Lee McWhorter delivers an extensive hands-on technical workshop demonstrating offensive techniques targeting Layer 3 network protocols. Setting up an interactive virtual testing environment, he guides attendees through protocol mechanics, vulnerability discovery, and packet manipulation at the network layer.

McWhorter details building virtual lab topologies using GNS3 and Docker containers at 16:08 and 23:25. At 30:37 and 37:49, he demonstrates attacking fundamental routing and network protocols, covering ARP spoofing, ICMP redirects, route poisoning, and IP spoofing. He explains both offensive execution mechanics and defensive countermeasures, showing network administrators how to implement protocol authentication and switch security to prevent Layer 3 manipulation.

(AI summary — Gemini Flash)