Next message: trent: "Re: [LUNI] making lemonaid out of a lemon"
Martin Maney wrote:
>
> On Wed, Mar 28, 2001 at 01:12:24PM -0800, trent wrote:
> > I have absolutley no idea. From what I've read it appears as a
> > connection icon in windows- similar to dial-up networking. By default
> > it disconnects after a certain period of time, and it appears to be a
> > legacy protocol. That's about all I know, until this afternoon, that
> > is. I do have a lot of questions, though. Why authenticate at all?
> > Why not use MAC addy? Why disconnect? Who's on top, SBC or Ameritech?
>
> One advantage to PPPoE over the very traditional router-based approach that
> Telocity uses (for example) is conservation of IP addresses. The way
> Telocity handles it they use FIVE addresses (1) to provide a single end-user
> machine's connection. With PPP you can cut that down to 2 IP addresses, and
> I'm not certain that the upstream address actually has to be unique - but
> those can come from a non-routable address block if you need to reduce the
> IP address usage.
>
> The disconnection business is undoubetly viewed as an advantage of using
> PPPoE by Ameritech: they don't WANT customers nailing the line up, if only
> because that makes it practical to run servers, and they don't want
> cusotmers who want to do that. Given PPPoE, requiring authentication is
> probably just simpler, esepcially since that lets them co-opt the existing
> Windows dial-up stuff to manage the connection. And, finally, modeling it
> on dial up probably lets them oversell the IP address space, further
> reducing the number of public IP addresses they need to use per customer.
>
> Of course there drawbacks to all these things, as there would be to using
> the MAC address for authentication (some cable systems have done that; it
> causes its own annoyances).
>
> (1) 4 in the subnet (2 usuable, 1 of those is the "modem's" NIC) plus the Ip
> address the upstream side of the "modem" uses. I suppose you could count a
> fractional address for the per-user share of the level up, but that's
> probably not very different than what everyone else does. I guess.
A special thanks to all who helped out. The configuration could not
have gone any smoother.
I compiled/configured Roaring Penguin PPPoE, set up PMFirewall and it
fired up the first time. I bit my tongue when I hit 'adsl-start' not
knowing what to expect- "Connected" was the answer. I was shocked (but
of course I didn't show it ;). I turned on PMFirewall (IPMasq) and that
was it- his girfriend and his secretary were gambling and surfing porn
sites immediately.
It never occured to me that it would show up as (DUH!) a ppp connection
rather that an eth, but it makes perfect sense in retrospect. Fear not
Ameritech DSL & PPPoE- if you can get it installed.
Tomorrow I'm going to write a little perl script so he can
start/stop/status his connection from his browser and that will be it.
Thanks all.
trent
-=-
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: Thu Mar 29 2001 - 17:31:51 CST