Re: Ring-Detect and PPP

Craig B Agricola (agricolc@btv.ibm.com)
Tue, 16 Jun 1998 11:01:03 -0400

Hi Rod,
I did the exact same thing that you are describing to get access to my
machine at home from here at work. It works beautifully. I even had the
problem that the IP address wasn't static, but that is easily fixed, since
I could e-mail my machine at work with the IP address once I was connected.
My problem (and the reason that I disabled it until I could rewrite the scripts)
was that telemarketers (I guess) would call my machine, and then my machine
would call the service provider. Since my service provider wouldn't time out
my connection, if I wasn't around to disconnect it, it would just stay connected,
which lead to really really high phone bills. If that isn't a problem for you,
then the script is really simple to write. I believe that most of the work
was done with 'chat' waiting for a [RING] and then if chat exited successfully,
the ppp-connect script was run. The script gets a little more complex if you
want to automatically disconnect under smart circumstances. YMMV.

-Craig

On Tue, Jun 16, 1998 at 10:27:06AM -0400, Rod Gotty wrote:
> At home, I have my Linux machine setup and can connect to the Internet via
> dialup PPP. At one time, I had it configured to automatically redial the
> ISP when the connection was lost and put a mechanism to ping a certain
> host every 5 minutes so as to keep the connection alive. My ISP didn't
> like that too much and told me not to do that anymore. Oh well.
>
> So, what I would like to do is find out if there is a way in which I can
> call my Linux machine from a regular telephone and have it connect to the
> Internet via my ISP. No, I don't want to set it up as a PPP Server and
> remotely connect to it. Instead, I want to be able to use any telephone
> (no modem here) to call my machine. My Linux machine sees ring indicate
> on the modem and says to itself (aha, Rod's calling me, I better connect
> to the Internet so he can telnet to me from where ever he is). Since my
> Linux machine gets a static IP address from my ISP, all I would need to do
> is to call my computer, let it ring once (or twice), hang up, connect to
> the Internet, and then telnet to my Linux machine.
>
> So, my question is, has any work to accomplish anything like this already
> been done? I would rather use something existing than to "reinvent the
> wheel" so to speak.
>
> TIA
> -Rod

-- 
 Craig B. Agricola    W: (802) 769-4636
  Work Related Email: agricolc@btv.ibm.com
  Personal Email:     cba@po.cwru.edu


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