DHCP Snooping is a network security feature that prevents unauthorized DHCP servers and malicious attacks by monitoring and filtering DHCP traffic. It works by classifying switch ports as trusted (allowing DHCP responses from legitimate servers) or untrusted (blocking unauthorized DHCP replies and limiting excessive requests). By maintaining a binding table that maps MAC addresses, IP addresses, VLANs, and interfaces, DHCP Snooping helps prevent DHCP spoofing, IP address theft, and DHCP starvation attacks. Learn more: https://en.wikipedia.org/wiki/DHCP_Snooping