null modem cable for small ISP project....

go the last part of the url


DB-9 To Null Modem DB-9
DB-9 NULL DB-9
1 4,6
2 3
3 2
4 1
5 5
6 1
7 8
8 7


http://groups.google.com/groups?q=n...borg.com&rnum=4

tera term 2.3 set to com2,
192.168.1.50 window 98SE COM2


but no garbage characters coming out on tera term terminal at all.


192.168.1.80 com1 redhat 7.2

I followed the url and soldered one cable with with female db-9 for myself to test out ppp linux with windows 98 SE so that I do not have go to boy-friend's to test dial in from remote to PPP server.

purpose - small isp to dial in from remote and via 192.168.1.80 go out to linksys router ( 192.168.1.1).

/var/log/mgetty.ttyS0

07/19 15:06:08 yS0 mgetty: experimental test release 1.1.26-Apr16
07/19 15:06:08 yS0 check for lockfiles
07/19 15:06:08 yS0 locking the line
07/19 15:06:08 yS0 WARNING: DSR is off - modem turned off or bad cable?
07/19 15:06:08 yS0 lowering DTR to reset Modem
07/19 15:06:09 yS0 send: \dATQ0V1H0[0d]
07/19 15:06:10 yS0 waiting for ``OK''
07/19 15:06:30 yS0 timeout in chat script, waiting for `OK'
07/19 15:06:30 yS0 init chat timed out, trying force-init-chat
07/19 15:06:30 yS0 send: \d[10][03]\d\d\d+++\d\d\d[0d]\dATQ0V1H0[0d]
07/19 15:06:34 yS0 waiting for ``OK''
07/19 15:06:54 yS0 timeout in chat script, waiting for `OK'
07/19 15:06:54 yS0 init chat failed, exiting...: Interrupted system call
07/19 15:06:54 ##### failed in mg_init_data, dev=ttyS0, pid=5943

--
07/19 15:06:54 yS0 mgetty: experimental test release 1.1.26-Apr16
07/19 15:06:54 yS0 check for lockfiles


hope someone can enlighten me.

TIA.

DSR stands for device set ready. This is the line that's causing you problems. (RS232 line 6). The only thing that you can do is check the cable again..

Don't forget that the D-type connectors appear to be the 'other way round' when you're soldering your wires into the back. It's sort of confusing, I know !!

You have to fix this cable error before anything else can be debugged.
I don't have any experience in soldering DB25 cables, but the google-gem looks reasonable.

christo

I found a "true" null modem cable both ends are db-9 female type.

connected to IBM 560E and redhat 7.2 serial port.
run tera terms 2.3

speed, 56700. n,8,1 and xon- xoff.
ATQ0V1H0 and I hot return a few times no login screen.


/etc/log/mgetty.ttyS0
--
07/20 01:30:26 yS0 mgetty: experimental test release 1.1.26-Apr16
07/20 01:30:26 yS0 check for lockfiles
07/20 01:30:26 yS0 locking the line
07/20 01:30:27 yS0 lowering DTR to reset Modem
07/20 01:30:27 yS0 send: \dATQ0V1H0[0d]
07/20 01:30:28 yS0 waiting for ``OK''
07/20 01:30:48 yS0 timeout in chat script, waiting for `OK'
07/20 01:30:48 yS0 init chat timed out, trying force-init-chat
07/20 01:30:48 yS0 send: \d[10][03]\d\d\d+++\d\d\d[0d]\dATQ0V1H0[0d]
07/20 01:30:52 yS0 waiting for ``OK''


what's next?

/var/log/ppp ( last part)Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/ntalk [line=13]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/qmail [line=12]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/rexec [line=11]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/rlogin [line=14]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/rsh [line=14]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/rsync [line=15]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/sgi_fam [line=13]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/swat [line=17]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/talk [line=15]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/telnet [line=12]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/time [line=13]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/time-udp [line=13]
Jul 20 11:38:08 energy xinetd[635]: Reading included configuration file: /etc/xinetd.d/wu-ftpd [line=14]
Jul 20 11:38:08 energy xinetd[635]: chargen disabled, removing
Jul 20 11:38:08 energy xinetd[635]: chargen disabled, removing
Jul 20 11:38:08 energy xinetd[635]: daytime disabled, removing
Jul 20 11:38:08 energy xinetd[635]: daytime disabled, removing
Jul 20 11:38:08 energy xinetd[635]: echo disabled, removing
Jul 20 11:38:08 energy xinetd[635]: echo disabled, removing
Jul 20 11:38:08 energy xinetd[635]: finger disabled, removing
Jul 20 11:38:08 energy xinetd[635]: linuxconf disabled, removing
Jul 20 11:38:08 energy xinetd[635]: ntalk disabled, removing
Jul 20 11:38:08 energy xinetd[635]: rsync disabled, removing
Jul 20 11:38:08 energy xinetd[635]: sgi_fam disabled, removing
Jul 20 11:38:08 energy xinetd[635]: talk disabled, removing
Jul 20 11:38:08 energy xinetd[635]: time disabled, removing
Jul 20 11:38:08 energy xinetd[635]: time disabled, removing
Jul 20 11:38:08 energy xinetd[635]: bind failed (Address already in use (errno = 98)). service = smtp
Jul 20 11:38:08 energy xinetd[635]: xinetd Version 2.3.3 started with libwrap options compiled in.
Jul 20 11:38:08 energy xinetd[635]: Started working: 6 available services
Jul 20 11:38:01 energy init: Entering runlevel: 5
Jul 20 11:38:23 energy gdm[868]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0
Jul 20 11:38:27 energy gdm[877]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0
Jul 20 11:38:33 energy gdm[886]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0
Jul 20 11:38:40 energy gdm[895]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0
Jul 20 11:38:40 energy gdm[859]: deal_with_x_crashes: Running the XKeepsCrashing script
Jul 20 11:38:40 energy gdm[859]: Failed to start X server several times in a short time period; disabling display :0

the home-cable that I made work as the null-modem cable that I found last nite.

on the IBM 560E, tera term, it only ATQ0V1H0 and nothing else?


goggle searching and nothing much help at all.


any help?