HPE 5920 series User Manual

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dhcp relay information enable
Use dhcp relay information enable to enable the relay agent to support Option 82.
Use undo dhcp relay information enable to disable Option 82 support.
Syntax
dhcp relay information enable
undo dhcp relay information enable
Default
The DHCP relay agent does not support Option 82.
Views
Interface view
Predefined user roles
network-admin
Usage guidelines
This command enables the DHCP relay agent to add Option 82 to DHCP requests that do not
contain Option 82 before forwarding the requests to the DHCP server. The content of Option 82 is
determined by the dhcp relay information circuit-id and dhcp relay information remote-id
commands. If the DHCP requests contain Option 82, the relay agent handles the requests according
to the strategy configured with the dhcp relay information strategy command.
If this feature is disabled, the relay agent forwards requests that contain or do not contain Option 82
to the DHCP server.
Examples
# Enable Option 82 support on the relay agent.
<Sysname> system-view
[Sysname] interface vlan-interface 10
[Sysname-Vlan-interface10] dhcp relay information enable
Related commands
dhcp relay information circuit-id
dhcp relay information remote-id
dhcp relay information strategy
display dhcp relay information
dhcp relay information remote-id
Use dhcp relay information remote-id to configure the padding mode and padding format for the
Remote ID sub-option of Option 82.
Use undo dhcp relay information remote-id to restore the default.
Syntax
dhcp relay information remote-id { normal [ format { ascii | hex } ] | string remote-id | sysname }
undo dhcp relay information remote-id
Default
The padding mode is normal and the padding format is hex.

HPE 5920 series Specifications

General

Brand	HPE
Model	5920 series
Category	Switch
Language	English