Dive into the fundamentals of network protocols with this 30-minute tutorial on Ethernet, IP, TCP, and UDP. Explore the layered structure of network communication, including the OSI model and key standards. Gain hands-on experience using Wireshark to analyze network traffic. Examine IP addressing, headers, and flags in detail. Investigate port numbers and their significance in network communication. Uncover potential vulnerabilities in these protocols and understand the differences between TCP and UDP. Perfect for aspiring digital investigators and network security enthusiasts looking to deepen their understanding of core networking concepts.