DHCP Snooping is a security feature that is commonly used in computer networks to prevent unauthorized or malicious DHCP (Dynamic Host Configuration Protocol) traffic.
DHCP is a protocol used by network devices to automatically obtain IP addresses and other configuration information from a DHCP server. However, an attacker can use DHCP Spoofing to send rogue DHCP messages and assign false IP addresses to target devices on the network. This can lead to various types of attacks such as man-in-the-middle, denial-of-service, or theft of sensitive information.
DHCP Snooping works by intercepting and analyzing DHCP messages in a switch network. It verifies the authenticity of each message by checking the source MAC address and the destination IP address against a DHCP binding table. If the message is deemed authentic, it is allowed to pass through. Otherwise, the message is dropped, and the switch port is blocked to prevent further unauthorized traffic.
DHCP snooping provides an additional layer of security for computer networks and can help network administrators to protect their network from potential threats.
