# Configuring DHCP Relay option 82 on a port

Use the following procedure to configure the option 82 parameter for DHCP Relay on a port.

## Procedure steps

1. From the navigation pane, double-click IP Routing.

2. In the IP Routing tree, click DHCP Relay.

3. In the DHCP Relay work area, click the DHCP Relay-port tab.

4. In the Switch/Stack/Ports field, click the ellipsis (...) and select the ports to configure.

5. Under the PortDhcpOption82SubscriberId field, enter a subscriber ID.

6. Click Apply Selection.

7. On the toolbar, you can click Refresh to verify the port DHCP relay Option 82 configuration.

## Variable definitions

The following table describes the fields of the DHCP Relay-port tab.

Field | Description
--- | ---
PortDhcpOption82SubscriberId | Specifies a subscriber ID for option 82 on the specified port.