DHCP Snooping

DHCP Snooping provides network security by filtering untrusted DHCP messages and by building and by maintaining a DHCP Snooping binding database (table). DHCP Snooping acts as a firewall between untrusted hosts and DHCP servers. DHCP Snooping differentiates between untrusted interfaces connected to the end user and trusted interfaces connected to the DHCP server or another switch.