On Wednesday 10 January 2007 17:20, Jorge Almeida 
<[EMAIL PROTECTED]> wrote about 'Re: [gentoo-user] moving to ADSL':
> On Wed, 10 Jan 2007, Boyd Stephen Smith Jr. wrote:
> > Well, I knew you'd need a ADSL modem.  Some of these (IIRC ours even)
> > can be configured to handle all the pppoe-ness and simply provide an
> > ethernet connection.  Depending on your service plan, you'll then
> > simply run a DHCP client or statically configure your IP.
>
> So, the computer must have the IP (static or dynamic) assigned by the
> provider? Or the ethernet interface in the router has that IP and the
> computer a private one?

Depends on setup.  Ours has (at least) two modes.  In one, the router has 
no IP, just like an external modem on dial-up has no IP.  The computer 
will have the external IP (static or dynamic) and need to run it's own 
firewall if you want one.  In this mode it's acting just as a modem 
translating USB or ethernet onto the phone line.  You are expected to run 
the PPPoE software on the computer.

There is also another mode, where IIRC, the modem does all the PPPoE stuff, 
and the computer sees a "standard" ethernet connection.  It then does DHCP 
or static addressing, just like a cable modem.

> And how about firewalling? I currently use Shorewall (with cable modem).
> Would the configuration be the same? (What I mean is: for the computer
> connected to a ADSL router, what is the "outside world"? The same that
> the router "sees"? Or is firewalling meaningful only at the router level
> and not at the computer level?)

Again depends on how you set up the modem+router.

> > This proved to be flaky on our model of modem, with the pppoe packages
> > for linux more gracefully handling things.
>
> That's something that's worth thinking about. Rather than upgrading a
> linux system, one is stuck with whatever comes in the box. And what is
> the OS inside? Some embedded linux, or something fishy?
> (And is this a reason to worry?)

Usually "something fishy", although I'm sure there are linux models 
available.

-- 
"If there's one thing we've established over the years,
it's that the vast majority of our users don't have the slightest
clue what's best for them in terms of package stability."
-- Gentoo Developer Ciaran McCreesh

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