Problems and solutions
8. Problems
We compiled a list of the most
common problems and their solutions.
If dialing up a provider with kISDN fails, check the following
points:
- Does kisdn really run suid
root ?
- Are the used network protocols correct?
syncPPP and HDLC should be fine in most cases, hence
their being the default setting.
- In case that kISDN automatically
loads the HiSax module, are the parameters correct? Was isapnp
configured correctly on your system (applies solely to ISA cards!)
?
- Is the right authentication protocol
used?
- Are username and password correct?
- A very strange problem concerning
the voice phone was reported by very few users: The phone only produces
loud noise on both sides of the link.
The solutions:
- Set kisdn SUID as root
using
chown root.root kisdn |
chmod u+s kisdn |
This assures that kISDN runs
with root permissions (that is the only way that kISDN
can configure network devices and/or load kernel modules, also see
chapter 2, Requirements).
- If the network protocols syncPPP
and HDLC don't work, you can either try every available one
or ask your ISP for the correct protocol.
- If you wish to configure isapnp
please read Appendix C (Configuration of
ISA Plug&Play cards).
- Most ISPs use either PAP
or CHAP as their authentication protocal; you should experiment
to find the right setting (there are only three anyway); to be absolutely
positive, you had best ask your provider.
- A password is easily entered incorretly,
because there is no way of checking it directly (every enterd character
is displayed as '*')
- The 'loid noise' effect appears on
kernels that were compiled for Processors different from 386, 486 and
586 (e.g. PentiumPro); it can be solved by recompiling the kernel
with a different CPU setting (but you may as well make a little change
in the kernel code to get it to work; please contact us in this case).
Back to the overview
T. Westheider, Ch. Demmer, Ch. Zander
/ January 8 1999 - kISDN Release 0.8.0
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