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[Sysname] interface GigabitEthernet 1/0/1

[Sysname-GigabitEthernet1/0/1] dhcp-snooping check request-message

dhcp-snooping information circuit-id format-type

Syntax

dhcp-snooping information circuit-id format-type { ascii | hex }

undo dhcp-snooping information circuit-id format-type

View

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Default level

2: System level

Parameters

ascii: Specifies the code type for the circuit ID sub-option as ascii.

hex: Specifies the code type for the circuit ID sub-option as hex.

Description

Use the dhcp-snooping information circuit-id format-type command to configure the code type for the

non-user-defined circuit ID sub-option.

Use the undo dhcp-snooping information circuit-id format-type command to restore the default.

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

field has its own code type.

This command applies to configuring the non-user-defined circuit ID sub-option only. After you configure

the padding content for the circuit ID sub-option using the dhcp-snooping information circuit-id string

command, ASCII is adopted as the code type.

Related commands: display dhcp-snooping information.

Examples

# Configure the padding format for the non-user-defined circuit ID sub-option as ascii.

<Sysname> system-view

[Sysname] interface GigabitEthernet 1/0/1

[Sysname-GigabitEthernet1/0/1] dhcp-snooping information circuit-id format-type ascii

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 interface view, Layer 2 aggregate interface view

Default level

2: System level

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