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Path: utzoo!utgpu!water!watmath!clyde!rutgers!mit-eddie!uw-beaver!tektronix!reed!omen!caf
From: caf@omen.UUCP
Newsgroups: comp.dcom.modems,comp.sys.ibm.pc
Subject: Re: How do I transfer files through a telenet connection?
Message-ID: <520@omen.UUCP>
Date: Thu, 16-Apr-87 03:46:45 EST
Article-I.D.: omen.520
Posted: Thu Apr 16 03:46:45 1987
Date-Received: Sat, 18-Apr-87 03:48:39 EST
References: <634@thumper.UUCP>
Reply-To: caf@.UUCP (Chuck Forsberg)
Organization: Omen Technology Inc, Portland Oregon
Lines: 39
Xref: utgpu comp.dcom.modems:431 comp.sys.ibm.pc:2975

In article <634@thumper.UUCP> tr@thumper.UUCP writes:
:[]
:
:I often call my host by dialing Telenet and connecting
:through it.  Apparently, there is a "transparent"
:protocol going on while I am typing and receiving text
:data.  But when I try to use Xmodem, Kermit, or Vtrans
:(a proprietary protocol that comes with Vterm, a
:commercial terminal emulator for the IBM PC), the transfer
:fails in the first packet.

Your Kermit problem may be caused by the two programs having different
parity settings.  Check the parity settings on both programs to make sure
they agree.  It is also possible, but unlikely, that one of the other
myriad Kermit parameters may need tuning.  Normally, Kermit works over
Telenet, alebit quite slowly because of the short block length and high
overhead.

XMODEM will not work unless all 256 code combinations pass through the
network, and the parameters used for your session may be "eating" some of
them.  The same problems may apply to the other protocol you tried, which
may be an XMODEM mutant.

Assuming that the interface between your host system (presumably Unix) and
Telenet is not stripping the 8th bit, you should be able to use the rz/sz
programs posted to net.sources a while ago for ZMODEM file transfers with
your PC.  ZMODEM escapes the characters and sequences that Telenet uses
for flow control and supervision, and the streaming technique gives high
throughput with Telenet and other packet switched networks.  The shareware
ZCOMM program available from many bulletin boards including TeleGodzilla
supports ZMODEM as well as an accurate VT100 emulation.


Chuck Forsberg WA7KGX Author of Pro-YAM communications Tools for PCDOS and Unix
...!tektronix!reed!omen!caf  Omen Technology Inc "The High Reliability Software"
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