Configure DHCP snooping globally to enable or disable DHCP snooping on the switch.
Procedure steps
Select IP Routing, DHCP from the Device Manager menu.
Click the DHCP snooping tab.
Select the DhcpSnoopingEnabled box to enable DHCP snooping globally.
OR
Deselect the DhcpSnoopingEnabled box to disable DHCP snooping globally.
Click Apply .