ADSL PPoA or RFC1483, any solutions ?

[Harti Brandt]

On Thu, 2 Oct 2003, Petri Helenius wrote:

PH>Harti Brandt wrote:
PH>
PH>>On Wed, 1 Oct 2003, Bruce M Simpson wrote:
PH>>
PH>>BMS>On Wed, Oct 01, 2003 at 02:17:59PM -0400, Barney Wolff wrote:
PH>>BMS>> Are you talking about running the phone line directly to the fbsd box
PH>>BMS>> with no dsl modem?
PH>>BMS>
PH>>BMS>Yes. Also, PPPoA in FreeBSD is currently only implemented if you use ngatm,
PH>>BMS>because of the signalling involved. RFC 1483 framing is a simple bolt-on
PH>>BMS>to the existing HARP drivers, but those don't support xDSL PHYs.
PH>>
PH>>Does PPPoA really need signalling? I tried to find any pointers to PPPoA
PH>>specification, but this seems to be not easy to find.
PH>>
PH>>
PH>Usually it does not, one just runs PPP over AAL5SNAP or AAL5VCMUX PVC.
PH>However most providers seem to go for RFC1483B because it practically
PH>eliminates
PH>CPE configuration issues.

In that case just stacking of ng_ppp (or ng_pppoe, what's the difference?)
on top of ng_atm and enabling the right VCC should do it. Well, you also
need to get rid of the LLC/SNAP header in between (I'm think of creating
an ng_llc node). This configuration stuff could be built in into
atmconfig. If someone is able to test this (has an xDSL mode, a connection
and a driver for the modem) I would try to help to get this up.

harti
-- 
harti brandt,
http://www.fokus.fraunhofer.de/research/cc/cats/employees/hartmut.brandt/private
brandt at fokus.fraunhofer.de, harti at freebsd.org