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000038_news@newsmaster….columbia.edu _Tue Jul 8 14:23:01 1997.msg
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From: pim@cti-software.nl (Pim Zandbergen)
Newsgroups: comp.protocols.kermit.misc
Subject: reverse telnet using raw TCP (Linux modemd)
Date: 8 Jul 1997 19:19:47 +0200
Organization: CTI Software BV, The Hague, the Netherlands
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I am trying to get K95 working as a client for modemd for Linux.
Modemd allows a client PC to use a modem connected to a Linux server.
It listens to a predefined TCP port and then connects the client supposedly
transparantly to the modem.
Modemd is basically a modified telnetd. But it does not do any TELNET
negotiations and does not set up a pty, but opens a modem device instead.
When I connect to this port using K95, I have to use
set telnet echo remote
in order to prevent double echoes.
But there is one problem I cannot seem to prevent: when I type
AT<CR>, the modem responds with OK<CR><NL><NL> instead of OK<CR><NL>.
Where is this translation happening ?
If it is happening inside K95, how can I prevent this ?
This problem is similar to the problem I have with using the raw TCP
ports of a Cisco 2500 for reverse telnet.
Modemd source is quite small and can be viewed at
http://www.pi.se/blox/modemd.shar .
--
E-mail : Pim Zandbergen <pim@cti-software.nl>
S-mail : Laan Copes van Cattenburch 70, 2585 GD The Hague, The Netherlands
Phone : +31 70 3067373
Fax : +31 70 3067374