Provisioning DHCP Relay

Updated on 23 Jan 2024
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The DHCP relaying feature enables you to redirect DHCP requests ingressing on the unit to specified servers on the data communications network (DCN). It can be used as part of performing traffic management tasks.

Note: To enable relaying DHCP requests on a particular interface to the server or servers you specify in this page, you must access the page Configuration ▶ Interface ▶<Interface_Name> and select the box Allow DHCP Relay. See "Configuring Logical Interfaces" for details.

To enable DHCP relay provisioning

Access the page System ▶DHCP Relay.
Configure DHCP relaying by setting the appropriate parameters, then click Apply.

For more information on specific parameters, refer to the following table.

DHCP Relay Settings (System ▶DHCP Relay)

Parameter	Description
Enable DHCP Relay	Select this box to enable the DHCP Relay feature on a per-interface basis. You must now enable DHCP Relay in the System ▶ Configuration ▶Interface page for each IPv4 interface on which you want to relay DHCP requests. If you clear this box, DHCP relaying on all interfaces configured on this unit will be automatically disabled.
Server 1 and Server 2	Enter the IP address of one or two servers to which all DHCP requests will be directed. The servers you indicate must reside on the same subnet as the unit. You must ensure that the addresses you enter here are assigned to accessible DHCP servers. No validation of these addresses is performed. Note: The servers you specify here do not act as a primary/secondary pair; either server may respond to a DHCP request. All DHCP requests are received by both servers.

Parameter

Description

Enable DHCP Relay

Select this box to enable the DHCP Relay feature on a per-interface basis. You must now enable DHCP Relay in the System ▶ Configuration ▶Interface page for each IPv4 interface on which you want to relay DHCP requests.

If you clear this box, DHCP relaying on all interfaces configured on this unit will be automatically disabled.

Server 1 and Server 2

Enter the IP address of one or two servers to which all DHCP requests will be directed. The servers you indicate must reside on the same subnet as the unit. You must ensure that the addresses you enter here are assigned to accessible DHCP servers. No validation of these addresses is performed.

Note: The servers you specify here do not act as a primary/secondary pair; either server may respond to a DHCP request. All DHCP requests are received by both servers.

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