Cisco Catalyst 3560-X Command Reference Manual page 286

ip dhcp snooping vlan information option format-type circuit-id string
Examples
Note
Related Commands
Catalyst 3750-X and 3560-X Switch Command Reference
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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
string customerABC-250-0-0
This example shows how to configure the option-82 circuit-ID override suboption:
Switch(config-if)# ip dhcp snooping vlan 250 information option format-type circuit-id
override string testcustomer
You can verify your settings by entering the show ip dhcp snooping user EXEC command.
The show ip dhcp snooping user EXEC 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.
Command
ip dhcp snooping information
option format remote-id
show ip dhcp snooping
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Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
Description
Configures the option-82 remote-ID suboption.
Displays the DHCP snooping configuration.
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