Explore the technical foundations of hacking in this comprehensive 55-minute video lecture. Delve into key concepts including the OSI Model, ARP, basic protocols, Ethernet, IP headers, UDP, TCP, security issues, SYN flags, sequence numbers, and ICMP. Gain a thorough understanding of network protocols and their potential vulnerabilities. Learn how to analyze Ethernet frames, IP headers, and various network communication methods. Discover the intricacies of ARP and ICMP through practical examples. Enhance your knowledge of cybersecurity by examining potential security issues within these protocols. Conclude with a summary of Unit 2, solidifying your grasp on the technical aspects of ethical hacking.