SuSE Support Database
Title: ISDN: What is important, when ISDN doesn't work as expected ?

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ISDN: What is important, when ISDN doesn't work as expected ?
Symptom:
The ISDN connection doesn't work as expected.
Which places must be checked /support:
Since the number of support questions about ISDN has increased a lot
lately, it would help us a lot if you could try to give us a complete
system/problem description.
Below, I try to summarize, which topics might be important.
You can find further information in the following places. Please read them
before asking S.u.S.E. support:
Collect at least the following files and command responses :
- ISDN partner: To whom do you want to establish a connection? Which
protocol is used, which authentication? Which IP numbers are used?
- ISDN card: describe your ISDN card as exactly as possible.
- Is the modul being loaded? (see ISDN howto)
/etc/route.conf
- Output of
ifconfig
- Output of
route
- Output of
isdnctrl list all
In order to create meaningful debug outputs :
- Unload the ISDN configuration:
-
/sbin/init.d/i4l stop
-
/sbin/init.d/i4l_hardware stop
- Write down the current system time (
date
)
- Load the ISDN configuration again and protocol everything in a file:
-
/sbin/init.d/i4l_hardware start
-
/sbin/init.d/i4l start
-
/sbin/init.d/route start
- Try to establish a connection to the Internet, e.g. with:
ping -c 2 www.suse.de
- Starting from the date and time that was determinded above,
copy everything from
/var/log/messages
into your protocol file.
Additionally with PPP
Start the ipppd with debug output. In order to do this,
activate the following lines in /etc/ppp/ioptions
debug
+pwlog
Then execute i4l start
as was described above.
/etc/ppp/ioptions
(before version 5.0 : options
)
-
/etc/ppp/options.ippp*
-
/etc/ppp/pap-secrets
(erase password!)
-
/etc/ppp/chap-secrets
(erase password!)
And now?
Now take a look at the protocol and think once more, whether you can
solve the problem with the available documentation or not ;-)
Please ask the S.u.S.E. support only then !

See also:

Keywords: ISDN, TROUBLE

Categories:
Configuration

Feedback welcome: Send Mail to kfr@suse.de (Please give the following subject: SDB-isdn_trouble
)

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SDB-isdn_trouble, Copyright SuSE GmbH, Nuremberg, Germany
- Version: 19. Mar 1997
Impressum - Last generated: 24. Feb 1999 14:49:14
by maddin
with sdb_gen 1.00.0