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DHCP Snooping and ARP Inspection Commands
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\CLI Folders\Dell Contax
CLI\files\DHCP_Snooping.fm
D E L L C O N F ID E N T IA L – P R E L IM I N A RY 5 / 1 5 /1 2 - F O R P R O O F O N LY
ip dhcp snooping vlan
Use the
ip dhcp snooping vlan
Global Configuration mode command to
enable DHCP Snooping on a VLAN. Use the
no
form of this command to
disable DHCP Snooping on a VLAN.
Syntax
ip dhcp snooping vlan
vlan-id
no ip dhcp snooping
vlan-id
Parameters
vlan-id
—Specifies the VLAN ID.
Default Configuration
DHCP Snooping on a VLAN is disabled.
Command Mode
Global Configuration mode
User Guidelines
DHCP Snooping must be enabled globally before enabling DHCP Snooping
on a VLAN.
Example
The following example enables DHCP Snooping on VLAN 21.
Console(config)#
ip dhcp snooping vlan
21
ip dhcp snooping trust
Use the
ip dhcp snooping trust
Interface Configuration (Ethernet, Port-
channel) mode command to configure a port as trusted for DHCP snooping
purposes. Use the
no
form of this command to restore the default
configuration.