You are a network administrator tasked with preventing unauthorized devices from assigning network addresses to clients on your network. Which Layer 2 security feature should you implement on the switches to achieve this goal?
IP Source Guard
Port security
Dynamic ARP Inspection
DHCP snooping
DHCP snooping is a security feature that filters untrusted messages from devices attempting to assign IP addresses and builds a binding table. It prevents rogue servers from distributing addresses by permitting responses only from trusted ports. Port security limits the number of MAC addresses on a port but doesn't stop unauthorized devices from assigning addresses. Dynamic ARP Inspection protects against ARP spoofing, not unauthorized address assignment. IP Source Guard prevents IP address spoofing but relies on DHCP snooping bindings and doesn't block unauthorized devices from assigning addresses by itself.
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