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•Save Binding Database to File — Indicates if the DHCP Snooping Database is saved to file. The possible field values are:

–Enable — Enables saving the database to file. This is the default value.

–Disable — Disables saving the database to file.

•Save Binding Database Internal — Indicates how often the DHCP Snooping Database is updated. The possible field range is 600 – 86400 seconds. The field default is 1200 seconds.

Configuring DHCP Snooping Global Parameters with CLI Commands

The following table summarizes the equivalent CLI commands for configuring DHCP Snooping global parameters.

Table 7-8.DHCP Snooping Global Parameters CLI Commands

CLI Command	Description
ip dhcp snooping	Use the ip dhcp snooping global configuration command to
no ip dhcp snooping	globally enable DHCP snooping. Use the no form of this
	command to return to the default setting.
ip dhcp snooping verify	Use the ip dhcp snooping verify global configuration command to
no ip dhcp snooping verify	configure the switch to verify on an untrusted port that the source
	MAC address in a DHCP packet matches the client hardware
	address. Use the no form of this command to configure the switch
	to not verify the MAC addresses.
ip dhcp snooping database	Use the ip dhcp snooping database global configuration
no ip dhcp snooping database	command to configure the DHCP snooping binding file. Use the
	no form of this command to delete the binding file.
ip dhcp snooping database update-freq seconds	Use the ip dhcp snooping database update-freq global
no ip dhcp snooping database update-freq	configuration command to configure the update frequency ofthe
	DHCP snooping binding file. Use the no form of this command
	to return to default.
show ip dhcp snooping [ethernet interface	Use the show ip dhcp snooping EXEC command to display the
port-channelport-channel-number]	DHCP snooping configuration.

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Configuring Switch Information