Re: PPPoE to multiple ISP on same network card/DSL modem

From: prg (rdgentry1_at_cablelynx.com)
Date: 04/11/05 

Date: 11 Apr 2005 09:55:57 -0700

Coenraad Loubser wrote:
> The ADSL routers all seem to support this, but apparently it is not
> possible due to bandwidth restrictions. I have asked a similar
question
> quite a time ago, and never really found a conclusive answer.
>
> I also wondered if two adsl routers could share the same line. The
only
> answer I got was "No" from someone who never tried it!

Regardless of the technology used to connect to your service provider,
keep in mind that you are, indeed, connecting to a _service_provider_.
You are connecting to a service which they provide ;) You are a node
(or stub) on _their_ network.

Re: PPPoE, the protocol and technology to support multiple
(independent) sessions is available, but that does not mean that the
service is provided. Some ISPs do not offer this service to end users
at all, some provide it as a special (ie., more $) service, and many
local/retail ISPs use it themselves to support their service (single
session) subscribers.

Some providers require logon/authentication similar to dial-up and
allow/limit/disallow multiple logons.

The OP's question, like most such/similar questions are almost always
determined by the provider's services and access hardware. Doubt
(though it is possible) they have multiple providers using his LEC's
facilities that would provide easy/transparent sessions and
connections. He needs to contact whoever provides the dsl line/dslam
hardware (ie., the telco and service providers).

There is little you can do at your end alone to milk greater bandwidth
and/or reliability out of a connection that the service provider
controls. If you want more, be prepared to pay more.

You can google something like:
pppoe multiple session
and find a number of reasonably good hits. Like:

http://publib.boulder.ibm.com/infocenter/wsphelp/index.jsp?topic=/com.ibm.wesm.doc/wesmpla-broadbandservicesusingpppoe.htm
http://publib.boulder.ibm.com/infocenter/wsphelp/index.jsp?topic=/com.ibm.wesm.doc/wesmpla-understandingtheredbacksms.htm
http://as.efficient.com/support/Tango/AccessMultSessions.html

You can $ man pppoe and have rfc2516 handy:
http://www.faqs.org/rfcs/rfc2516.html
to get a better idea what is involved.

This should provide many ideas for further googling if you wish to get
into the details.

http://www.cisco.com/en/US/tech/tk175/tk15/tsd_technology_support_protocol_home.html

hth,
prg

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