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
show ip dhcp snooping binding
This example shows how to display the DHCP snooping binding entries’ MAC address for a specific
VLAN:
Switch# show ip dhcp snooping binding 55.5.5.2 0002.b33f.3d5f vlan 99
MacAddress IpAddress Lease(sec) Type VLAN Interface
------------------ --------------- ---------- ------------- ---- --------------------
00:02:B3:3F:3D:5F 55.5.5.2 479 dhcp-snooping 99 FastEthernet6/36
Switch#
This example shows how to display the dynamic DHCP snooping bind ing entries:
Switch# show ip dhcp snooping binding dynamic
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 the DHCP snooping binding entries on VLAN 100:
Switch# show ip dhcp snooping binding vlan 100’
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 the DHCP snooping binding entries on Ethernet inter face 0/1:
Switch# show ip dhcp snooping binding interface fastethernet3/1
MacAddress IP Address Lease (seconds) Type VLAN Interface
----------- ----------- ---------------- ------------ ----- ------------
0000.0100.0201 10.0.0.1 1600 dhcp-snooping 100 FastEthernet3/1
Switch#
Table 2-18 describes the fields in the show ip dhcp sn ooping command output.
Related Commands
Table 2-18 show ip dhcp snooping Command Output
Field Description
Mac Address Client hardware M AC address .
IP Address Client IP address a ssigned from the DHCP ser ver.
Lease (seconds) IP address lease time.
Type Binding type; statically configured from CLI or dynamically learned.
VLAN VLAN number of the client in terface.
Interface Interface that connects to the DHCP client host.
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.