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THE ORIGINAL QUESTION:
Does anyone have or have knowlege of Serial_Line_Internet_Protocol (SLIP) for
Sun 3 or 4 workstations. Does it exist, is it reliable, can I get it free,
can I get it immediately???
############################################################################
MY SUMMARY:
Apparently there has been some discussion of this subject before. From
what I see, there are three major categories to consider.
1) SLIP
2) CSLIP (compressed)
3) PPP (compressed headers???)
Additional considerations are:
Which version of SunOS ?
Ancillary software to make automatic dialing etc. easier?
Serial I/O support software (SunLink, uucp, tip, etc.).
Several sites were identified as having various combinations of versions and
support software. Here are the most often mentioned locations:
ftp.uu.net:
ftp on neat.ai.utoronto.ca
alcazar.cd.chalmers.se.
bulldog.cs.yale.edu
ftp.ee.lbl.gov
neat.ai.toronto.edu
titan.rice.edu,
ftp.ee.lbl.gov
uunet.uu.net
Details for retrieving the various versions and users comments are given in
the "SUMMARY OF REPLIES" below:
I retrieved the SunOS 4.0 of SLIP version from ftp.uu.net and ran it
successfully on a SPARCstation1 from serial port A to serial port B with the
following cable configuration: (RS-232C 25-pin "D")
TX 2 --> 3 RX
RX 3 <-- 2 TX
SGND 7 --- 7 SGND
DCD 8 <-- 20 DTR
DTR 20 --> 8 DCD
I was able to telnet from port A to port B and vice versa as described in
the README file included with the software.
I still am having trouble with running it on a Sun3/50 but haven't given up
yet. ("If there is nothing wrong with me, then there must be something wrong
with the Universe!" - Beverly Crusher -)
I have not studied all the various versions and techniques so don't quote me
about their meanings, purposes or properties. Please correct me if I have
spread false information.
Thanks to all who replied. I hope this summary reaches all who requested
my findings.
Daryl Crandall
The MITRE Corporation
daryl@mitre.org
(703) 883-7278
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SUMMARY OF REPLIES:
> ###########################################################################
> > From: ron@manta.nosc.mil (Ron Broersma)
> > To: hudgens@sun13.scri.fsu.edu, sun-nets@GRINCH.UMIACS.UMD.EDU
> > Subject: Re: SLIP and CSLIP on Suns?
> >
> > As I recall, the version of CSLIP for SUNOS that is in the clipbeta
> > release does ONLY compressed slip. I think it understands uncompressed
> > packets but always tries sending compressed packets.
> >
> > It also has another bug. After running through the decompressor, it throws
> > away all packets less than 40 bytes long. That is assuming 20 bytes of
> > IP header and 20 bytes of TCP header I guess. But, a trailing fragment
> > can be less than 40 bytes because the TCP header is only in the first
> > fragment. Changing the 40 to a 20 fixes it. I don't know if that bug has
> > been reported. I found it a few weeks ago after having trouble transferring
> > certain files.
> >
> > --Ron
>
> ###########################################################################
> From: "Matt Crawford" <matt@oddjob.uchicago.edu>
> Get it by ftp from something.utoronto.ca or try uunet.
>
> ###########################################################################
> From: mikulska%ece@ucsd.edu (Margaret Mikulska)
> There is a PD SLIP for 4.0 on titan.rice.edu, or at least it used to be
> there. See SunSpots v7n50 for details. In further volumes of Spots there
> were other postings discussing SLIP for Suns.
> ###########################################################################
> From: "Douglas F. DeJulio" <dd26+@andrew.cmu.edu>
> I'm running SLIP on a Sun2/120 right now, running SunOS3.5. It should
> work on any Sun running SunOS3.5. I grabbed it from uunet.uu.net, and
> I think I saw one for SunOS4 in there somewhere, but I'm not certain.
> ###########################################################################
> From: era@niwot.scd.ucar.EDU (Ed Arnold)
> You can get SLIP via anonymous ftp from
> uunet.uu.net:~ftp/networking/{sl.shar.Z,cslipbeta.tar.Z}.
> The `cslipbeta' version is Van Jacobson's new version
> that compresses TCP headers, probably has some bugs.
>
> We don't run it here, but I've heard some people who do
> say it works well over Telebit T1500/T2500 modems in v.32 mode.
> ###########################################################################
> From arul@sdsu.edu Mon Oct 29 20:42:35 1990
> There are a few versions of SLIP floating around for the Suns. The
> one we are using now is the one from University of Toronto. You
> can get it via ftp from neat.cs.toronto.edu
>
> We've been using it for a while without any problems.
>
> There is also a "compressed" slip version available from ftp.ee.lbl.gov,
> I haven't tried it but it's definitely worth a look.
> ############################################################################
> From: pratt@cs.stanford.edu
> Public-domain slip exists on neat.ai.toronto.edu, titan.rice.edu,
> and uunet.uu.net. The first-mentioned has the most recent release.
> It is very reliable, except that if you are running 4.1 you must
> get from Sun their (brand-new!) mclput-panic fixes to the modules
> if_subr and ip_input.
> ############################################################################
> From: loverso@westford.ccur.com
> If you are running a SLIP line and wish to make better use of it, use
> Van Jacobson's alg to compress TCP/IP headers over the link. See
> RFC-1144 and/or the "beta" cslip release from ftp.ee.lbl.gov. Several
> terminal server vendors have either released cslip (and header-compressed
> PPP) support or will do so, soon.
> ############################################################################
> From: stefan mochnacki <stefan@centaur.astro.utoronto.ca>
> I grabbed a copy. It's now up for anonymous ftp from bulldog.cs.yale.edu
> (130.132.1.2, 128.36.0.3) in ~ftp/pub/slip-4.1-beta.tar.Z.
> ########################################################################
> It's also available on alcazar.cd.chalmers.se.
> ########################################################################
> You also can look for slip stuff by anon ftp on neat.ai.utoronto.ca. There are
> several SLIP packages there thanks to Rayan Zachariassen; IO've been using
> his SLIP for 4.0 for 1.5 years now very successfully.
>
> Stefan W. Mochnacki INTERNET - stefan@centaur.astro.utoronto.ca
> Astronomy, U. of Toronto UUCP - {uunet,pyramid}!utai!helios.physics!stefan
> Ph. (416) 884-9562 BITNET - mochnacki@utorphys.bitnet
>
>
> ############################################################################
> From: dal@gcm.com (Dan Lorenzini)
> I am currently installing SLIP on some machines here. I have installed
> it in sun3's and sun4's and sparcstations running 4.0.3 and 4.1c and it
> seems to be reliable. The code I got was from uunet. There is also a
> version of 'tip' that knows about SLIP. This makes things easier when
> using dialup lines.
>
> There is also cslip, which uses compressed headers and is supposed to be
> more efficient. I am not using it because I am dialing into an Annex
> box that only has regular SLIP. Also purported to be better than SLIP
> is PPP, which is only becoming available now. There is a version of PPP
> for suns on omnigate.clarkson.edu. So far I have not played with this
> either.
>
> If you have trouble getting hold of SLIP from uunet, drop me a line and
> I can send you what I've got. If you get PPP to work, let me know
> because I think I will need to get that running some time in the future.
>
> Dan Lorenzini
> Greenwich Capital Markets
> 600 Steamboat Road
> Greenwich, CT 06830
> dal@gcm.com
>
> ############################################################################
> From: asp@uunet.uu.net (Andrew Partan)
> SLIP exists.
> We have several in our archives on ftp.uu.net:
> -rw-rw-r-- 1 rick 265522 Dec 31 1989 networking/cslipbeta.tar.Z
> -rw-r--r-- 1 root 439811 Sep 22 18:19 networking/ka9q.slip.tar.Z
> -rw-rw-r-- 1 root 27125 Jun 10 1989 networking/slip-3.x.tar.Z
> -rw-rw-r-- 1 root 25933 Jun 10 1989 networking/slip-4.0.tar.Z
> -rw-rw-r-- 1 asp 1506 Aug 2 11:46 networking/slip-4.1-beta.README
> -rw-r--r-- 1 swo 10889 Jul 21 02:53 networking/slip-4.1-beta.tar.Z
> -rw-rw-r-- 2 rick 20359 Dec 2 1988 networking/slip.dynix.tar.Z
> -rw-r--r-- 2 rick 19461 Apr 12 1988 networking/slip.shar.Z
>
> The slip-4.0 is for SunOS 4.0. The slip-4.1 is for Sun OS 4.1, but
> supposibly does not work quite right yet.
> --asp@uunet.uu.net (Andrew Partan)
>
> ############################################################################
> From: Michael S. Maiten <msm@energetic.com>
> A copy exists somewhere at toronto.edu (I have a copy, but I haven't
> had a chance to try it (yet)). It also comes with SUN PC-NFS (TCP/IP
> for PC's that includes telnet, ftp, NFS, network printer access, etc)
> [the SLIP code is source which you can install on the server; it
> requires changing the kernel]. I haven't yet tried this one either.
> By next week I will probably have tried one or the other.
> ###########################################################################
> >From: kph@cisco.com
> Subject: Re: X-Windows over serial line?
>
> If your X terminal supports SLIP, you can do this, although I've never
> tried it. I have no idea how good the performance will be.
>
> If you have NCD X terminals, you can use a feature called Xremote,
> which compresses the X data and avoids the overhead of TCP, IP, and
> SLIP, as well as much of the most common X events (such as pressing a
> key on the keyboard).
>
> Xremote requires a special program to run on a host system which speaks
> X over TCP to the client applications, and speaks Xremote over the
> asynchronous line. You can contact NCD for more information on this.
>
> I am a daily user of Xremote, and am quite happy with the performance
> using 9600 baud V.32 modems.
>
> I have no idea how many host sessions a given Unix system can support
> via Xremote. I run Xremote directly on cisco terminal servers (using
> unreleased software), and I've done a lot to be able to support large
> numbers of users efficiently. I have no experience using Xremote with a
> host system that is experiencing any significant loading - this could
> have an effect on performance.
> ########################################################################
> torben nielsen has a 56kb sync PPP for sparcstations from
> uhccux.uhcc.hawaii.edu for anonymous ftp. --Ed
>
> >An nice implementation of PPP, but be advised that it requires SunLink,
> >both for running tty ports in sync mode and for internetwork routing.
> >Also be advised that there are some problems in using SunLink this way
> >under SunOS4.1. In order to Torben's version at the moment, you may
> >have to be running SunOS4.0.3.
>
> >Contact info:
>
> > torben@foralie.ics.hawaii.edu (Torben Nielsen)
> >or gary@uhics.ics.hawaii.edu (Gary Arakaki)
>
> Hmmm... UREP on Suns runs the tty ports in sync, actually bi-sync, mode and
> does not require SunLink. Do not know if anyone has tried running the port
> at speeds higher that 19.2KB though.
>
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:05:59 CDT