Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
clear ip dhcp snooping binding
clear ip dhcp snooping binding
To clear the DHCP snooping binding, use the clear ip dhcp snooping binding command.
clear ip dhcp snooping binding [*] [ip-address] [vlan vlan_num] [interface interface_num]
Syntax Description
Defaults This command has no default settings.
Command Modes Privileged EXEC mode
Command History
Usage Guidelines These commands are mainly used to clear DHCP snooping binding entries.
DHCP snooping is enabled on a VLAN only if both the global snooping and the VLAN snooping are
enabled.
Examples This example shows how to clear all the DHCP snoop binding entries:
Switch# clear ip dhcp snooping binding *
Switch#
This example shows how to clear a specific DHCP snoop binding entry:
Switch# clear ip dhcp snooping binding 1.2.3.4
Switch#
This example shows how to clear all the DHCP snoop binding entries on the GigabitEthernet interface
1/1:
Switch# clear ip dhcp snooping binding interface gigabitEthernet 1/1
Switch#
This example shows how to clear all the DHCP snoop binding entries on VLAN 40:
Switch# clear ip dhcp snooping binding vlan 40
Switch#
* (Optional) Clears all DHCP snooping binding entries.
ip-address (Optional) IP address for the DHCP snooping binding entries.
vlan vlan_num (Optional) Specifies a VLAN.
interface interface_num (Optional) Specifies an interface.
Release Modification
12.2(44)SG Support for this command was introduced on the Catalyst 4500 series switch.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E