Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!VAX.FTP.COM!jbvb
From: jbvb@VAX.FTP.COM (James Van Bokkelen)
Newsgroups: comp.protocols.tcp-ip.ibmpc
Subject: Re: Term. Emulators over STD NetBIOS/TCP/IP
Message-ID: <8909031627.AA24642@vax.ftp.com>
Date: 3 Sep 89 16:27:15 GMT
References: <8909012233.AA03343@sidev.af.mil>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
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The reason that the terminal emulation packages you talk about don't
work with RFC-conforming NETBIOSes is that they are actually modem- or
port-sharing packages (everyone can share a central cluster of ports),
not remote-login packages.  Some or maybe all would work if you
attached the central port cluster to a DOS PC and ran the server end
on it.  In your case, going back to serial and then into the 3B would
be a major inefficiency, since you already have TCP/IP on the 3B.

NETBIOS wasn't designed for remote login, so the modem-sharing
packages all use different proprietary application-layer protocols on
top of it (which would be a major obstacle if Locus or Syntax ever
tried to support them as an enhancement to their Unix SMB products).
Telnet and Rlogin are public protocols intended for use direct from
the PC (or another Unix system) to the 3B, and are impelented on
almost all TCP/IP hosts.

In the PC/TCP v2.03 "User's Guide", section 3.5, we give all the "undisclosed
keymap table" entries for all keys which don't just return the appropriate
Ascii value.  We give similar values for the 3270 special keys in section 3.6,
but (as is documented in the patch level 3 READ.ME file), they are off by 0x20
since pl 3 came out.  This is because the overseas people asked me for more
re-mappable values when we added the user-loadable Ascii-EBCDIC translation
tables, but the documentation couldn't get fixed until 2.04 (this month).

At any rate, our re-mapper is only a remapper, not a script language.  Our
INT 14 serial-BIOS-to-Telnet converter allows access to a number of serial
packages which do contain script languages, though.  With this, they can be
used over a Telnet or Rlogin connection just as if they had a direct serial
connection (capable of .5 to 2.5 Mbits/sec) to the host.

James B. VanBokkelen		26 Princess St., Wakefield, MA  01880
FTP Software Inc.		voice: (617) 246-0900  fax: (617) 246-0901