dhcp snooping information remote-id

Use dhcp snooping information remote-id to configure the padding mode and padding format for the Remote ID sub-option.

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

Syntax

dhcp snooping information remote-id { normal [ format { ascii | hex } ] | [ vlan vlan-id ] { string remote-id | sysname } }

undo dhcp snooping information remote-id [ vlan vlan-id ]

Default

The padding mode is normal and the padding format is hex.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

vlan vlan-id: Specifies the VLAN ID as the Remote ID sub-option.

string remote-id: Specifies the string mode that uses a case-sensitive string of 1 to 63 characters as the content of the Remote ID sub-option.

sysname: Specifies the sysname mode that uses the device name as the Remote ID sub-option. You can configure the device name by using the sysname command in system view.

normal: Specifies the normal mode. The padding content is the MAC address of the receiving interface.

format: Specifies the padding format for the Remote ID sub-option. The default padding format is hex.

ascii: Specifies the padding format as ASCII.

hex: Specifies the padding format as hex.

Usage guidelines

DHCP snooping uses ASCII to pad the specified string or device name for the Remote ID sub-option. The padding format for the normal padding mode is determined by the command configuration.

If you use this command multiple times, the most recent configuration takes effect.

Examples

# Pad the Remote ID sub-option with the character string device001.

<Sysname> system-view
[Sysname] interface Ten-GigabitEthernet 1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] dhcp snooping information enable
[Sysname-Ten-GigabitEthernet1/0/1] dhcp snooping information strategy replace
[Sysname-Ten-GigabitEthernet1/0/1] dhcp snooping information remote-id string device001

Related commands

• dhcp snooping information enable

• dhcp snooping information strategy

• display dhcp snooping information