Cisco Catalyst 3550

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Catalyst 3550 Multilayer Switch Command Reference
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Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
ip dhcp snooping vlan information option format-type circuit-id string
Examples This example shows how to configure the option-82 circuit-ID suboption:
Switch(config-if)# ip dhcp snooping vlan 250 information option format-type circuit-id
customerABC-250-0-0
You can verify your settings by entering the show ip dhcp snooping user EXEC command.
Note The show command only displays the global command output, including a remote-ID configuration. It
does not display any per-interface, per-VLAN string that you have configured for the circuit ID.
Related Commands Command Description
ip dhcp snooping information
option format remote-id
Configures the option-82 remote-ID suboption.
show ip dhcp snooping Displays the DHCP snooping configuration.