Ethernet Security
Ethernet Security refers to the practices, protocols, and technologies used to protect Ethernet networks from unauthorized access, data breaches, and other cyber threats. It encompasses measures at the data link layer (Layer 2) of the OSI model, focusing on securing network switches, ports, and frames to prevent attacks like MAC flooding, ARP spoofing, and VLAN hopping. This includes implementing features such as port security, MAC address filtering, and encryption to ensure the confidentiality, integrity, and availability of network communications.
Developers should learn Ethernet Security when working on network-intensive applications, IoT devices, or enterprise systems to mitigate Layer 2 vulnerabilities that can lead to data theft or network disruptions. It is crucial for roles involving network administration, cybersecurity, or embedded systems to prevent attacks like man-in-the-middle or denial-of-service at the Ethernet level. Use cases include securing corporate LANs, industrial control systems, and cloud infrastructure where Ethernet is the backbone.