🚀 go-pugleaf

Here are some responses to my SLIP-for-the-Mac question:
I've omitted the names and addresses of the responders as these were
private E-mail messages.

jwk@scripps.edu
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I don't know about a public domain SLIP, but cisco Systems, Inc. offers
SLIP implementations for the Mac, PC and Amiga.  I believe the charge
is around $100 per package, but I couldn't tell you for sure.
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We (cisco Systems) have a version of NCSA telnet that's been hacked to support
SLIP. You can get it via anonymous FTP from ftp.cisco.com; the file name is
telnet.hqx. We offer no support for the package whatsoever, but it does
seem to work.
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The KA9Q package is the only SLIP implementation for the Mac I know of.  It
is PD and I've been using it for quite a while now.  I use it both with a
hard wired 19200 bps connection and from home with a 2400 bps modem.  When
you use it via dial-up, you have to dial with another comm program and
of course, enter the ip address of the port you connect to.
I think I've put an up to date version on our MTS system.  FTP to
mtsg.ubc.ca (128.189.103.1) anonymously and CD to PC2.  The file is
CO.SLIP and is in HQX format.
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The Phil Karns / KA9Q package supports SLIP, as well as IP-over-
AppleTalk, IP-over-ham-radio, and a couple of other methods I believe.
You can download it from the MacScience BBS at (408) 866-4933.
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The K9AQ tcpip package available from simtel20 and other sites supports
slip.  The program was originally written for an ibm pc but has been
ported to the mac.  I don't know if the slip specific code has been
converted,  but it should not be too bad to port.  The files are in
pd3:<msdos-k9aq-tcpip>.  Most files are in dos "arc" format,  so you
will need a program which can deal with these archives.  (I believe
such a program exists at sumex for the mac;  there are also unix and
vms versions of arc floating around).  simtel20 is a dec 20 (36 bit
words;  you must transfer the arc binary files in tenex mode).
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I heard MIT has one working for MacTCP.  Don't know who or when it'll be
available, though.
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