Specifications

2-602
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0XO(15.1(1)XO)
OL_28738 -01
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
show ip dhcp snooping
show ip dhcp s nooping
To display the DHCP snooping configur ation, use the show ip dhc p snoopi ng com mand.
show ip dhcp snooping
Syntax Description This command has no arguments or keywo rds.
Defaults T his command has no default settings.
Command Modes Privileged EXE C mode
Examples This exampl e shows how to display the DHCP snoop ing configuratio n:
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 Description
ip dhcp snooping Globally enables DHCP snooping.
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.