Path: utzoo!mnetor!uunet!husc6!mit-eddie!ll-xn!ames!hao!noao!mcdsun!fishpond!fnf
From: fnf@fishpond.UUCP (Fred Fish)
Newsgroups: comp.sys.mac
Subject: A/UX and HAYES modems
Message-ID: <17@fishpond.UUCP>
Date: 17 Mar 88 03:00:11 GMT
Organization: tbd
Lines: 74


Ok, so where is comp.sys.aux...  :-)

I have been frustrated for some time by not being able to use
a HAYES compatible modem for dialins to A/UX by uucp from another
system.  The problem I was experiencing, and it was happening for
both a true Hayes 2400 and an Avatex 2400, was that as soon as the
modem on the A/UX end answered, the connection would be immediately
broken.  After trying several different configurations (and reading
the A/UX manual :-), I finally got it working.  This is what I
believe the original problem sequence was, though my evidence is
mostly trial-and-error results, and supposition:

	Remote Machine		A/UX Machine
	--------------		------------

				getty starts up on dialin line and
				issues
					<lots of mumbletyfoo> login:
	uucico dials out
				modem detects ring and issues
				verbose result "RING"

				getty sees user "RING" and issues
					password:

				modem connects and issues verbose
				result "CONNECT"

				getty sees bogus user login and
				dies     ***BAM***, disconnect

	uucico gets no carrier
	message and tries again

				see above


I'd be embarrassed to admit how long it took me to figure out
what was going on.  Since everything worked fine with an
Avatex 1200, which is NOT HAYES compatible, I was even considering
the possibility of some sort of bizarre modem compatibility
problem between both ends of the link.  Anyway, the fix is
easy:

	kermit
	kermit> set line /dev/tty0
	kermit> set speed 2400
	kermit> connect
	ATS0=1
	OK
	ATQ1
	AT&W

This does make using the modem for dialouts via the changing
of init levels as described in the A/UX documentation more
complicated, as you now have to go back in and change the 
modem setup manually.  If this gets to be too annoying
I guess I'll try writing a little filter that gets
called first from inittab, to set the Q1 mode dynamically,
without writing the new configuration back to the
nonvolatile memory.

Anyone ported HD uucp to this guy yet?  It's a shame that
with the other enhancements like ksh, they decided to
ship an inferior uucp.

-Fred

				
				
-- 
# Fred Fish    hao!noao!mcdsun!fishpond!fnf     (602) 921-1113
# Ye Olde Fishpond, 1346 West 10th Place, Tempe, AZ 85281  USA