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- Path: chch.planet.co.nz!ashby
- From: ashby@iac.org.nz (Dean Ashby)
- Newsgroups: comp.sys.sun.admin,comp.dcom.modems
- Subject: SunOS 4.1.3_U1, USR Sportster modem, and getty
- Date: 15 Jan 1996 04:36:36 GMT
- Organization: International Centre for Antarctic Information and Research
- Message-ID: <4dclkk$cva@sirius.intxpress.co.nz>
- Reply-To: ashby@icair.iac.org.nz
- NNTP-Posting-Host: evans.iac.org.nz
- X-Newsreader: TIN [version 1.2 PL2]
-
- I am currently trying to set up a dial-in modem connection via a USRobotics
- modem to a Sun SPARCstation 4 running SunOS 4.1.3_U1. I have set up the
- a serial port (ttyb) to accept in-coming calls as described in Chapter 11
- of the "Systems and Network Administration" manual.
-
- The basic procedure I followed was:
-
- # mknod cua1 c 12 129
- # chmod 600 cua1
- # chown uucp cua1
-
- The eeprom settings for ttyb are as follows:
-
- ttyb-rts-dtr-off=false
- ttyb-ignore-cd=true
- ttyb-mode=9600,8,n,1,-
-
- /etc/ttytab looks like this:
-
- ...
- ttyb "/usr/etc/getty std.9600" vt100 on remote
- cua1 "/usr/etc/getty std.9600" unknown off local secure
- ...
-
- And a 'kill -1 1' was executed.
-
- The modem is configured for "Normal DTR operations" (&D2) and "Normal
- CD operations" (&C1).
-
- I have not installed Patch 100513-04 (Should I??)
-
- When I try to dial into the modem carrier is established, protocol and
- compression are negotiated but then carrier is lost before a login
- prompt appears.
-
- One other thing that I observed that I don't think is right is that
- after the 'kill -1 1' is issued 'getty' starts, then spawns a 'login'
- process for ttyb. I seem to remember when I tried this back in the
- 4.1.2 days that getty would sit around waiting for an in-coming
- connection on the modem before spawning the 'login' process. Getty
- is acting as if CD is always being held high causing it to repeatedly
- spawn a 'login' process as the previous one times out. Unfortunately
- I don't have a breakout box to monitor the serial cable and check
- if the modem is holding CD high (the CD LED on the modem is off if
- that is any indication).
-
- I have also tried a Well Communications modem and had exactly the same
- problems.
-
- Any help would be much appreciated.
-
- Regards,
-
- Dean
-
- +-------------------------------------------------------------------------+
- | Dean Ashby, ashby@icair.iac.org.nz, ph 64-3-358-4450, fax 64-3-358-4480 |
- | International Centre for Antarctic Information and Research (ICAIR) |
- | PO Box 14-199, Christchurch, New Zealand. http://www.icair.iac.org.nz/ |
- +-------------------------------------------------------------------------+
-