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
View
Layer 2 Ethernet port view, Layer 2 aggregate interface view
Default level
2: System level
Parameters
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.
Description
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.
Examples
# 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