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Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!seismo!mimsy!chris
From: chris@mimsy.UUCP
Newsgroups: comp.unix.wizards
Subject: Re: SLIPDISC protocol
Message-ID: <5526@mimsy.UUCP>
Date: Thu, 19-Feb-87 23:32:04 EST
Article-I.D.: mimsy.5526
Posted: Thu Feb 19 23:32:04 1987
Date-Received: Sat, 21-Feb-87 03:19:13 EST
References: <596@wucs2.UUCP>
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
Lines: 32
Keywords: SLIPDISC, protocol, serial lines, microwave link, tcp/ip
Summary: Needs a fix or two, but compiles

In article <596@wucs2.UUCP> david@wucs2.UUCP (David Burstyn) writes:
>    Has anyone successfully used the SLIPDISC protocol
>(mentioned on page SMM:13-9 under tty_conf.c) to connect
>systems over an asynchronous serial link?

Yes.  (But not here.)

>    No one here has been able to succesfully compile a
>kernel with the SLIPDISC protocol.  Does anyone know
>if it is functional as distributed, or if not know what
>modifications are needed.

It will run.  Add

	pseudo-device	sl	2	# or however many you need

to your configuration file, run /etc/config, make depend, make.
Boot the new vmunix, make sure characters sent on ttyXX show up
at the other machine, and run

	slattach ttyXX 1200 &		# or whatever speed

If you need a modem dialled, write a program to do that, then run
slattach.  If the line drops, slattach should die with a SIGHUP,
and you can automatically redial.

There are, however, a few bugs in the code as distributed.  In
particular, if you get low on clists, the SL interfaces may lock
up.  I have no official fix yet (low priority).
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7690)
UUCP:	seismo!mimsy!chris	ARPA/CSNet:	chris@mimsy.umd.edu