SUMMARY Dialout

From: Ashok Sharma (asharma@tssc.wlg.nec.co.jp)
Date: Fri Sep 23 1994 - 04:10:59 CDT


Greetings,

Lot of people responded to my original question:

   I am trying to setup a dialout facility on my SunOS 4.1.3_U1.
   I am having difficulty trying to get my c program to talk to
   the modem port. (/dev/ttya).
   The program just hangs while trying to open this port.??

Thank you very much for everyone who answered my question.

Here goes the summary.....
-------------------------------------------------------------------------------
Basically, my problem was with the device file /dev/ttya.
The name of the device file usually used for modem is /dev/cua0 with
major device = 12 and minor = 128.
Also, the command ttysoftcar -n /dev/cua0 must be in the rc.local
to switch off software carrier detection.
-------------------------------------------------------------------------------
There is a procedure in the "System and Network Admin " manual in
chapter 11.

The short version is
cd /dev
mknod cua0 c 12 (This is linked to /dev/ttya)
chmod 600 cua0
chown uucp cua0

Next, add the following in /etc/ttytab

cua0 "/usr/etc/getty std.9600" unknown off remote secure.
-------------------------------------------------------------------------------
Another solution is to do the following:
1.) As Superuser, I made the device cub0 for dial-out.
   T then moved ttyb to ttyd0 for dial-in.
    
2.) I edited /etc/ttytab to include
    ttyb "/use/etc/getty std.9600" unknown off local secure
    ttyd0" /use/etc/getty std.38400" dialup on remote

3.) Using eeprom, I set
    ttyb-ignore-cd=false
    ttyb-rts-dtr-off=true

4.) I turned off soft carrier on ttyd0. In /etc/rc I set
    /usr/etc/ttysoftcar -n ttyd0 >/dev/null 2>&1

5.) I edited /etc/remote as shown in the System and Network Admin book.

6.) Re-booted the system
-------------------------------------------------------------------------------
Finally, some good reading material can be found in the O'Reilly Book
"Managing UUCP and Usenet" by Tim O'Reilly & Grace Todino.

A PostScript file by Syed Zaeem Hosain from
ftp.zyxel.com:/pub/other/zyx_sun.ps.Z

Cheers

Ashok
TSSC NZ Telecommunication System Support Center
A
 



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