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
show ip dhcp snooping binding
show ip dhcp snooping binding
To display the DHCP snooping binding entries, use the show ip dhcp snooping binding command.
show ip dhcp snooping binding [ip-address] [mac-address] [vlan vlan_num]
[interface interface_num]
Syntax Description
Defaults If no argument is specified, the switch will display the entire DHCP snooping binding table.
Command Modes Privileged EXEC mode
Command History
Usage Guidelines DHCP snooping is enabled on a VLAN only if both the global snooping and the VLAN snooping are
enabled.
To configure a range of VLANs, use the optional last_vlan argument to specify the end of the VLAN
range.
Examples This example shows how to display the DHCP snooping binding entries for a switch:
Switch# show ip dhcp snooping binding
MacAddress IP Address Lease (seconds) Type VLAN Interface
----------- ----------- ---------------- ------------- ----- ------------
0000.0100.0201 10.0.0.1 1600 dhcp-snooping 100 FastEthernet3/1
Switch#
This example shows how to display an IP address for DHCP snooping binding entries:
Command Description
ip dhcp snooping Globally enables DHCP snooping.
ip dhcp snooping information option Enables DHCP option 82 data insertion.
ip dhcp snooping limit rate Configures the number of the DHCP messages that an
interface can receive per second.
ip dhcp snooping trust Enables DHCP snooping on a trusted VLAN.
ip dhcp snooping vlan Enables DHCP snooping on a VLAN or a group of VLANs.
ip-address (Optional) IP address for the binding entries.
mac-address (Optional) MAC address for the binding entries.
vlan vlan_num (Optional) Specifies a VLAN.
interface interface_num (Optional) Specifies an interface.
Release Modification
12.1(12c)EW 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