Cisco Catalyst 4500 Series - Page 374

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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
ip dhcp snooping information option
Switch(config)# ip dhcp snooping vlan 500 555
Switch(config)# ip dhcp snooping information option format remote-id string switch123
Switch(config)# interface GigabitEthernet 5/1
Switch(config-if)# ip dhcp snooping trust
Switch(config-if)# ip dhcp snooping limit rate 100
Switch(config-if)# ip dhcp snooping vlan 555 information option format-type circuit-id
string customer-555
Switch(config-if)# interface FastEthernet 2/1
Switch(config-if)# ip dhcp snooping vlan 555 information option format-type circuit-id
string customer-500
Switch(config)# end
Related Commands Command Description
ip dhcp snooping Globally enables DHCP snooping.
ip dhcp snooping binding Sets up and generates a DHCP binding configuration to
restore bindings across reboots.
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 dhcp snooping vlan information
option format-type circuit-id string
Enables circuit-id (a sub-option of DHCP snooping
option-82) on a VLAN.
show ip dhcp snooping Displays the DHCP snooping configuration.
show ip dhcp snooping binding Displays the DHCP snooping binding entries.