Welcome to the ZyXEL Networking Glossary - your definitive source for descriptions of networking terms and ZyXEL's product features.
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Anti-IP Address Spoofing
With DHCP snooping, a COE device records which IP address is assigned to each DHCP client MAC address and the VLAN to which each IP and MAC address pair belongs. The COE device drops packets from a device using an IP address that is assigned to a different MAC address.