SM450 with PPPoE tag VLAN ID

A WISP network has several PPPoE servers on different VLANs.

It is required to tag the PPPoE request service with some VLAN ID.

The SM must provide the VLAN ID tag to the PPPoE packets.

Is it possible to meet this requirement?

Thanks.

To make sure I understand the request correctly this is to use the PPPoE client on the SM not on another device connected to the Ethernet port, correct?   I have not tried it and am looking into it.

Yes, the PPPoe client is on the SM.