Show Ip Dhcp Snooping - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

show ip dhcp snooping

To display the DHCP snooping configuration, use the show ip dhcp snooping command.
Syntax Description
This command has no arguments or keywords.
Defaults
This command has no default settings.
Command Modes Privileged EXEC mode
Command History Release
12.1(12c)EW
12.2(25)EWA
Examples This example shows how to display the DHCP snooping configuration:
Switch# show ip dhcp snooping
Switch DHCP snooping is enabled
DHCP snooping is configured on following VLANs:
500,555
DHCP snooping is operational on following VLANs:
500,555
DHCP snooping is configured on the following L3 Interfaces:
Insertion of option 82 is enabled
circuit-id default format: vlan-mod-port
remote-id: switch123 (string)
Option 82 on untrusted port is not allowed Verification of hwaddr field is enabled DHCP
snooping trust/rate is configured on the following Interfaces:
Interface Trusted Rate limit (pps)
------------------------ ------- ----------------
FastEthernet5/1 yes 100
Custom circuit-ids:
VLAN 555: customer-555
FastEthernet2/1 no unlimited
Custom circuit-ids:
VLAN 500: customer-500
Switch#
Related Commands Command
ip dhcp snooping
ip dhcp snooping information option
ip dhcp snooping limit rate
OL-25342 -01
show ip dhcp snooping
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Support for option 82 on untrusted ports was added.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0SG and IOS 15.1(1)SG)
Description
Globally enables DHCP snooping.
Enables DHCP option 82 data insertion.
Configures the number of the DHCP messages that an
interface can receive per second.
show ip dhcp snooping
2-705