Ip Dhcp Snooping - Cisco Catalyst 3750 Command Reference Manual

Chapter 2 Catalyst 3750 Switch Cisco IOS Commands

ip dhcp snooping

Use the ip dhcp snooping global configuration command on the switch stack or on a standalone switch
to enable Dynamic Host Configuration Protocol (DHCP) snooping globally. Use the no form of this
command to return to the default setting.
Syntax Description
This command has no arguments or keywords.
Defaults
DHCP snooping is disabled.
Command Modes Global configuration
Command History Release
12.1(19)EA1
Usage Guidelines For any DHCP snooping configuration to take effect, you must globally enable DHCP snooping.
DHCP snooping is not active until you enable snooping on a VLAN by using the ip dhcp snooping vlan
vlan-id global configuration command.
Examples
This example shows how to enable DHCP snooping:
Switch(config)# ip dhcp snooping
You can verify your settings by entering the show ip dhcp snooping privileged EXEC command.
Related Commands Command
ip dhcp snooping vlan
show ip dhcp snooping
show ip dhcp snooping binding
78-16181-01
ip dhcp snooping
no ip dhcp snooping
Modification
This command was introduced.
Description
Enables DHCP snooping on a VLAN.
Displays the DHCP snooping configuration.
Displays the DHCP snooping binding information.
Catalyst 3750 Switch Command Reference
ip dhcp snooping
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