Specifications

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0XO(15.1(1)XO)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
ip dhcp snooping
ip dhcp snoopi ng
To enable DHCP snooping globally, use the ip dhcp snooping command. To disable DHCP snoo ping,
use the no form of this command.
ip dhcp snooping
no ip dhcp snooping
Syntax Description This command has no arguments or keywo rds.
Defaults D HCP s nooping is disable d.
Command Modes Global c onfiguratio n mode
Usage Guidelines You must enable DHCP snooping globa lly before you can use DHCP snooping on a VLAN.
Examples This exampl e shows how to enable DHCP snoopi ng:
Switch(config)# ip dhcp snooping
Switch(config)#
This example shows how to disable DHCP snooping:
Switch(config)# no ip dhcp snooping
Switch(config)#
Related Commands Command Description
ip dhcp snooping information option E nables DHCP option 82 data insertion.
ip dhcp snooping limit rate Configures the number of the DHCP messages th at an
interface can receive per second.
ip dhcp snooping trust E nables DHCP snooping on a trusted VLAN.
ip dhcp snooping vlan Enables DHCP snooping on a VLAN or a group o f VLANs.
show ip dhcp s nooping Displays t he DHCP snooping configur ation.
show ip dhcp snooping binding Displays the DHCP snooping binding entrie s.