Subject: PPPoE/L2TP Framing Type

From: "Luigi Campora" <[email-masked]>
Date: Tue, 13 Jun 2000 09:25:35 +0200

Dear subscribers,
I have a doubt concerning PPP Framing when PPPoE sessions
have to be multiplexed over a L2TP tunnel.

Suppose my LAC is also a PPPoE server: then it receives PPP
packets having the PPPoE framing, i.e., no address/control field
is inserted by the PPPoE client.
Bearer type AVP is not mandatory, thus there is no way of
informing the LNS about this framing
(Framing Type AVP can't help, because PPPoE framing is
neither synchronous nor asynchronous in my opinion...).

Do I have to insert address and control before sending PPP
packets through the L2TP tunnel?
In other words, do I have to provide some PPP bridging
functionality at the LAC?

Regards.

Luigi