Configuring Dhcp Snooping and Arp Inspection on Cisco Switches
Dhcp snooping is a feature that protects against rogue DHCP agents. This happens by characterising links as trusted and untrusted. Untrusted ports can only forward requests, while trusted can forward all dhcp messages. steps to to configure dhcp 1. characterize uplink interfaces as trusted I assume your dhcp server is on the distribution or core layer.