Help! I can't login

[gary lowell]

I am trying to login to my RS6000 from home using an ascii terminal and
modem.  I can connect ok, but can't login.  I am sure there is some
trivial parameter that is not set right somewhere.  I've spent several
hours on the phone with support people, and our SE spent almost a full
day on-site with no results.

The system is an RS6000 model 320.  I have a Trailblazer Plus modem
attached to built-in serial port #1, which is /dev/tty0.  The line
for that port in /etc/security/login.cfg is

	/dev/tty0:
		sak_enabled = false
		herald = "Allegro (tty0)\n\rPlease Login: "

When I call up the system what I see is:

	CONNECT 2400
	Allegro (tty0)
	Please login: glowell
	3004-007 You have entered an invalid login name or password
	login: glowell
	3004-007 You have entered an invalid login name or password
	login: glowell
	3004-007 You have entered an invalid login name or password
	NO CARRIER

The user-id 'glowell' is valid, since that is what I use to login at the
console (hft).  The allowed tty field in the smit user screen is 'ALL'.
I have also tried leaving the field blank, and '/dev/console,/dev/tty0,
/dev/tty1' with the same results.  We have a 3-32 user liscense, and
smit shows that that is how the system is configured.

Searching through info-explorer I've been unable to discover anything
else that might control letting someone login. 

Someone by now must have succeeded in hanging a terminal off the
serial port of an RS6000.  Any help or sugestions would be greatly
appreciated.

Gary Lowell
glowell at portia.stanford.edu