dhcp-snooping information circuit-id string

Syntax

dhcp-snooping information [ vlan vlan-id ] circuit-id string circuit-id

undo dhcp-snooping information [ vlan vlan-id ] circuit-id string

Layer 2 Ethernet port view, Layer 2 aggregate interface view

2: System level

vlan vlan-id: Specifies a VLAN ID, in the range of 1 to 4094.

circuit-id: Padding content for the user-defined circuit ID sub-option, a case-sensitive string of 3 to 63 characters.

Use dhcp-snooping information circuit-id string to configure the padding content for the user-defined circuit ID sub-option.

Use undo dhcp-snooping information circuit-id string to restore the default.

By default, the padding content for the circuit ID sub-option depends on the padding format of Option 82.

After you configure the padding content for the circuit ID sub-option using this command, ASCII is adopted as the code type.
If a VLAN is specified, the configured circuit ID sub-option only takes effect within the VLAN. If no VLAN is specified, the configured circuit ID sub-option takes effect in all VLANs. The former case has a higher priority. The circuit ID sub-option specified for a VLAN will be padded for packets within the VLAN.

Related commands: dhcp-snooping information format and display dhcp-snooping information.

# Configure the padding content for the user-defined circuit ID sub-option as company001.

<Sysname> system-view
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] dhcp-snooping information circuit-id string company001

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