relay-option-82

Syntax

Hierarchy Level

Release Information

Statement introduced in JUNOS Release 8.3.

Description

Enable or disable the insertion of the DHCP relay agent information option (option 82) in DHCP packets destined for a DHCP server.

If you enable insertion of option 82 information in DHCP packets, you must specify at least the circuit-id statement to include the agent-circuit-id suboption (suboption 1) of the DHCP relay agent information option. Optionally, you can also specify the prefix statement to add a prefix to the base option 82 information that consists of any combination of the hostname, logical system name, and routing instance name. Specifying the relay-option-82 statement with no subordinate statements disables insertion of option 82 information in DHCP packets, which is the default behavior.

You can use the relay-option-82 statement and its subordinate statements at the [edit forwarding-options dhcp-relay] hierarchy level to control insertion of option 82 information globally, or at the [edit forwarding-options dhcp-relay group group-name] hierarchy level to control insertion of option 82 information for a named group of interfaces.

The statements are explained separately.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Related Topics

• Enabling and Disabling Insertion of Option 82 Information