[ale] OT?: PPPoE Topology

[Ian Philpot]

First thank you for replying and the link looks like it will be helpful. I 
will review that later tonight.

Secondly that topology is pretty dead on. 
Firewall(Creating PPPoE connection) > Westell Modem > Internet

As for the modem creating a PPPoE connection, this is not something I have 
set up (again I will review the link/pdf for more info). To my knowledge it 
sits on the Physical layer and handles transmission. My firewall creates a 
PPPoE connection (Layer 2?) to bellsouth branch office. Please correct me if 
I am wrong.



-- 
/ip | http://www.faqs.org/rfcs/rfc1739.html


So you have the following setup?

Soho firewall-->DSL Modem-->Internet

?  We'll need more information to help.

For example, which modem do you have?  Older DSL modems (Alcatel Speed
Touch series comes to mind) didn't have a built in router, but the
Westell modems that Bellsouth has been using for at least 3 years now
have a built in router.  If you go into the advanced properties of the
modem, you can change the connection mode to Bridged Ethernet, bypassing
the modem's internal PPPOE "client".

http://www.fastaccess.drivers.bellsouth.net/documents/Westell_Guide.pdf 

-----Original Message-----
From: ale-bounces at ale.org [mailto:ale-bounces at ale.org
<ale-bounces at ale.org>] On Behalf Of
Philpot, Ian
Sent: Monday, June 13, 2005 10:02 PM
To: ale at ale.org
Subject: [ale] OT?: PPPoE Topology

I have a question that maybe off topic a little. If I'm not in the right
place please point me in the correct direction!

What part does the DSL transceiver(modem) play in the PPPoE protocol
stack to build a session between client(soho firewall) and
server(Bellsouth PPPoE server?)?

Does it get an IP Address? and if so is it the first hop after my
internal gateway or is that the b/o?

Any help is appreciated, links to documentation are welcomed.

--
Ian Philpot

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