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Cisco CATALYST 2960 Command Reference Guide

Cisco CATALYST 2960
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2-126
Catalyst 2960 Switch Command Reference
OL-8604-03
Chapter 2 Catalyst 2960 Switch Cisco IOS Commands
ip dhcp snooping
ip dhcp snooping
Use the ip dhcp snooping global configuration command to globally enable DHCP snooping. Use the
no form of this command to return to the default setting.
ip dhcp snooping
no ip dhcp snooping
Syntax Description This command has no arguments or keywords.
Defaults DHCP snooping is disabled.
Command Modes Global configuration
Command History
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 user EXEC command.
Related Commands
Release Modification
12.2(25)FX This command was introduced.
Command Description
ip dhcp snooping vlan Enables DHCP snooping on a VLAN.
show ip igmp snooping Displays the DHCP snooping configuration.
show ip dhcp snooping binding Displays the DHCP snooping binding information.

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Cisco CATALYST 2960 Specifications

General IconGeneral
ManageableYes
StackingNo
ModelCatalyst 2960 Series Switches
Power over Ethernet (PoE)Available on some models (IEEE 802.3af)
VLANs255 active VLANs
FeaturesQoS
Operating Temperature32 to 113°F (0 to 45°C)
Relative Humidity10% to 85% non-condensing
Power ConsumptionVaries by model (30W to 400W)

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