Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!anasaz!qip!chad
From: chad@qip.UUCP (Chad R. Larson)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: SLIP modem autodialing and idle line detection
Message-ID: <5605@qip.UUCP>
Date: 3 Dec 90 20:17:14 GMT
References: <1852@hawk.nstn.ns.ca>
Organization: Anasazi, Inc.  Phoenix, Az
Lines: 36

In article <1852@hawk.nstn.ns.ca> bushell@hawk.nstn.ns.ca writes:
+---------------
| We have three main requirements:
| 
| 1) Must be able to automatically establish a SLIP connection over a modem.
| 
| 2) Must be able to automatically accept an IP number assigned by the
| terminal server being dialed into, and run public domain applications like
| KA9Q and NCSD Telnet with this IP number.
| 
| 3) To try to minimize connect charges for the users, we want to monitor the
| line for user activity, and drop it after a specified period if there
| is none, even if he/she is still in the application.  We want to
| reconnect when activity is detected.
+---------------
A product called the "NetBlazer" from Telebit meets all your needs, I
believe.  It is a combination Bridge/Router/Terminal server built on a
PC chassis.  It supports ethernet cards, wide area net cards, and Digiboard
multi-port async cards in combination.   It uses Phil Karn's Network
Operating System as its heart.

The serial cards are used to provide both terminal service and dial-up
IP connections.  The dial-up connections may be either dial out or in,
and either SLIP or PPP.  The modems I saw it demo'd with were Telebit
Trailblazers (natch) but I think any Hayes compatable will do.

You can set a time-out value on a link, and the dial connection will be
dropped after the time out.  The TCP connection need not be dropped, and
when the next packet arrives the dial connection is re-established.

I saw it demo'd at InterOp '90 in San Jose.  I have no connection with
Telebit.
-- 
Chad R. Larson          ...{mcdphx,asuvax}!anasaz!chad or chad@anasaz.UUCP
Anasazi, Inc. - 7500 North Dreamy Draw Drive, Suite 120, Phoenix, Az 85020
(602) 870-3330            "I read the news today, oh boy!"  -- John Lennon


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