R3303-HP HSR6800 Routers Layer 3 - IP Services Command Reference

Table Of Contents
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dhcp-snooping information circuit-id string
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.
Syntax
dhcp-snooping information [ vlan vlan-id ] circuit-id string circuit-id
undo dhcp-snooping information [ vlan vlan-id ] circuit-id string
Default
The padding content for the circuit ID sub-option depends on the padding format of Option 82.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Default command 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.
Usage guidelines
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 circuit ID sub-option
specified for a VLAN is padded for packets within the VLAN.
Examples
# Configure the padding content for the user-defined circuit ID sub-option as company001.
<Sysname> system-view
[Sysname] interface gigabitethernet 3/1/1
[Sysname-GigabitEthernet3/1/1] dhcp-snooping information circuit-id string company001
Related commands
dhcp-snooping information format
display dhcp-snooping information
dhcp-snooping information enable
Use dhcp-snooping information enable to configure DHCP snooping to support Option 82.
Use undo dhcp-snooping information enable to disable this function.
Syntax
dhcp-snooping information enable