[Scottish] PPPoE vs PPPoA

Matt Causey matt.causey at gmail.com
Wed Jun 18 12:05:56 BST 2008

In my understanding, PPPoE is the newer, more flexible protocol...as it
allows more detailed AAA through the ISPs RADIUS infrastructure.  But there
are no benefits to the end ISP user AFAIK.

The other options there, as you'll find, define the topology of your
connection (do you want the DSL modem to also function as a router with a
management address, or do you want the modem to simply act as a bridge so
that you can perform the PPPx authentication at another device, etc.).

On Wed, Jun 18, 2008 at 11:57 AM, Phillip Bennett <phillip at mve.com> wrote:

> Hi guys,
> On the topic of ADSL, I have just looked at my router at home and see that
> I have the following modes available to me:
> * RFC 1483 Routed
> * RFC 1483 Bridged
> * PPPoA Routed
> * IPoA Routed
> * PPPoE Routed
> * PPPoE Routed with Pass-through.
> Assuming they were all available (I have no idea, I'm using Lumison through
> work atm) which would be the best to go for and why?  (Don't worry, I'm
> going to have a look myself right now as well - just wanted some opinions)
> I always thought PPPoA was better than PPPoE, but I have no idea why I
> thought that.
> Thanks,
> Phil.
> ----- Original Message ----- From: "William Anderson" <neuro at well.com>
> To: "SLUG-list" <scottish at mailman.lug.org.uk>
> Sent: Wednesday, June 18, 2008 2:08 AM
> Subject: Re: [Scottish] PPPoE vs PPPoA
>  Andrew Back wrote:
>>> [snip]
>>> That's what I thought, I.e. that you might only get PPPoE when an ISP has
>>> say taken advantage of LLU. But I have now been told by two different people
>>> that PPPoE can work, and a quick Google seems to reinforce this:
>> The pages you cite are 3-5 years old! :)  The whole thing about PPPoE
>> being supported is ... weeeeeeeell, it *can* work, but PPPoA is the
>> *supported* mode, so you should stick to that wherever possible.
>> -n
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