retronetworking
/
isdn4k-utils
13
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Added stuff from German version that was missing in the english FAQ. 

Corrected CVS_ROOT to CVSROOT.
Last version of _old_ FAQ (1.3.4) before major rework/removal of outdated
stuff.
This commit is contained in:
Matthias Hessler 1999-06-04 19:35:23 +00:00
parent 9bea755f99
commit f434f77cc5
1 changed files with 186 additions and 128 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

314
FAQ/eng-i4l-faq
View File

@ -1,5 +1,5 @@
ATTENTION! The following header is not fully valid yet!
From: dl4mhk@lrz.uni-muenchen.de (Bernhard Hailer)
From: hessler@wi-inf.uni-essen.de (Matthias Hessler)
Newsgroups: de.alt.comm.isdn4linux,de.answers,news.answers
Subject: ISDN4linux-FAQ
Followup-To: de.alt.comm.isdn4linux
@ -12,9 +12,10 @@ Posting-frequency: monthly
Last-modified: 18-Mar-97
URL: http://www.lrz-muenchen.de/~ui161ab/www/isdn/
!1FAQ for isdn4linux - Version 1.3.3!br (translation 3-Oct-97)
!1FAQ for isdn4linux - Version 1.3.4!br (translation 3-Oct-97)
[Translator's notes]!br
--4-Jun-99: Add missing stuff from German version, corrected CVSROOT.
--5-May-97: Translation complete for 1.3.2 (except for the proofreading)! !br
--8-May-97: Added correction for Italy.!br
--25-May-97: Numerous corrections submitted by Paul Slootman!br
@ -324,7 +325,8 @@ Q: What is the new HiSax driver all about?
A: It is a new driver that should support all passive cards that are based on a
certain Siemens chip set. Currently it supports:
!verbon
* Teles 8.0/16.0/16.3 and compatible ones
* Teles 8.0/16.0/16.2/16.3 and compatible ones
(like: Dr. Neuhaus Niccy 1016, Creatix 16/S0)
* Teles 16.3c
* Teles S0/PCMCIA
* Teles PCI
@ -442,9 +444,8 @@ A: The current version of isdn4linux support 2 methods of channel
Q: What is the difference between an active and a passive ISDN card?
A: An active ISDN card handles most of the ISDN connection protocols
(dialing, accepting calls, etc.) itself. The card includes a kind
of minicomputer with its own
software (firmware). With a passive card, the computer in which
the card is installed has to perform these functions.
of minicomputer with its own software (firmware). With a passive card, the
computer in which the card is installed has to perform these functions.
!old
Q: Are there sites that offer guest access where I can test my
@ -471,7 +472,7 @@ A: Yes, the following sites offer guest access for modem emulation or IP:!br
There's a "gast" at +49 30 67 19 81 01 (X.75, mgetty). There's the
stones-html-page with pics in postscript to test downloading. Whoever
needs a target to call can use it. At ...81 03 there's a getty with
HDLC. As guest you enter a kind of BBS and can read some news.
HDLC. As guest you enter a kind of BBS and can read some news.
!verboff
!old
@ -490,10 +491,9 @@ A: Yes, voice support is possible with the current version of isdn4linux.
Q: Can I fax with isdn4linux?
A: Several groups are working on fax software
that will work together with isdn4linux. At the moment, it looks like
it will never work... because timing is critical
for fax software, and Linux doesn't yet have a real time environment.
If you do want to fax, you'll have to install an analog fax modem
along with your ISDN card.
it will never work... because timing is critical for fax software, and
Linux doesn't yet have a real time environment.If you do want to fax,
you'll have to install an analog fax modem along with your ISDN card.
!old
Q: Is videotex/Btx/Datex-J possible with isdn4linux?
@ -532,16 +532,16 @@ A: CVS - Concurrent Version System!br
The I4L drivers are developed under CVS, and there exists on server
(oldhades.think.de) a CVS tree to which all developers have access.
In addition, Fritz has put together an anonymous read-only access. If you
must have the very newest versions, you can get them there, however they
must have the very newest versions, you can get them there, however they
may contain more bugs than the released versions!!!
Here is the message from Fritz Elfert <fritz@wuemaus.franken.de>
about this:!br
ANOTHER IMPORTANT THING:!br
I often get patches - against current official releases of course -
where i have problems applying them. My local source here
sometimes is 2 or 3 version ahead however i cannot release it, since
where I have problems applying them. My local source here
sometimes is 2 or 3 version ahead however I cannot release it, since
it is incomplete or completely untested etc.!br
Therefore i now decided to make the CVS repository of the isdn4linux
Therefore I now decided to make the CVS repository of the isdn4linux
public available. Now, programmers who want to have a look at the
development ongoing or those who always want to get the newest stuff
here is how to access the CVS repository:!br
@ -552,8 +552,8 @@ A: CVS - Concurrent Version System!br
exec rsh -l guest $*
!verboff
3. Set CVS_RSH to this script (e.g.: export CVS_RSH=~/.cvsrsh)!br
4. Set CVS_ROOT to oldhades.think.de:/i4ldev!br
(e.g.: export CVS_ROOT=oldhades.think.de:/i4ldev)!br
4. Set CVSROOT to oldhades.think.de:/i4ldev!br
(e.g.: export CVSROOT=oldhades.think.de:/i4ldev)!br
5. Execute "cvs -z9 checkout isdn"!br
-> This will create a directory tree isdn/ in your current directory.!br
Below isdn/ you will find the same hierarchy like in the linux
@ -634,26 +634,27 @@ A: Here is a small glossary:!br
!b1CLIR (Calling Line Identification Restriction)!b0
!verbon
CLIR (Calling Line Identification Restriction) can be offered by
the ISDN provider: one can (from call to call) restrict the identification
of one's own caller ID to the other party. In Germany, this must be applied
for but is without charge (however call by call !i1transmission!i0 of the
caller ID costs extra).
the ISDN provider: one can (from call to call) restrict the
identification of one's own caller ID to the other party. In Germany,
this must be applied for but is without charge (however call by call
!i1transmission!i0 of the caller ID costs extra).
!verboff
!b1COLP (Connected Line Identification Presentation)!b0
!verbon
COLP can also be offered by the ISDN provider. In Germany, it must be
applied for, and costs an extra 10.-- DM per month. If you've applied
for COLP, you get an extended dialing protocol that, for example, can be
evaluated in the PBX. Current the possibility is being worked on to get
around this with the help of a backwards-connected Teles card. One could
then get more information than with a running COLP without using any units.
That could quickly pay off...
for COLP, you get an extended dialing protocol that, for example, can
be evaluated in the PBX. Currently the possibility is being worked on
to get around this with the help of a backwards-connected Teles card.
One could then get more information than with a running COLP without
using any units. That could quickly pay off...
!verboff
!b1CVS Tree!b0
!verbon
The i4l developers have formed a team. The tool "CVS" allows the members
to easily make patches. The history of the project is also thereby
documented, and it is also not difficult to reproduce older versions.
The i4l developers have formed a team. The tool "CVS" allows the
members to easily make patches. The history of the project is also
thereby documented, and it is also not difficult to reproduce older
versions.
!verboff
!b1HDLC!b0
!verbon
@ -661,27 +662,28 @@ A: Here is a small glossary:!br
!verboff
!b1HSCX!b0
!verbon
A Siemens chip, that similar to ISAC is on many passive cards.
A Siemens chip which is, similar to ISAC, on many passive cards.
It takes over the serial bus from ISAC and demultiplexes when
receiving or multiplexes (i.e. inserts the bits in the correct
receiving or multiplexes (i.e. inserts the bits in the correct
position) the B channels.
!verboff
!b1ISAC!b0
!verbon
A Siemens chip, that similar to HSCX is on many passive cards.
Et is responsible for "Level 1", so it sits (almost) directly on
A Siemens chip which is, similar to HSCX, on many passive cards.
It is responsible for "Level 1", so it sits (almost) directly on
the line. It handles the D channel protocol and sends the
S0 data to a special serial bus (IOM). When sending it does the
opposite.
!verboff
!b1TEI!b0 (Terminal End Identifier)
!verbon
The local switching station, or with an internal S0 the PBX, automatically
or permanently assigns each end device a TEI. This simply allows
the addressing of the D channels. TEIs have the following values:
0- 63 permanent TEIs (e.g. 0 is used for PBX connections)
The local switching station, or with an internal S0 the PBX,
automatically or permanently assigns each end device a TEI. This
simply allows the addressing of the D channels. TEIs have the
following values:
0- 63 permanent TEIs (e.g. 0 is used for point to point connections)
64-126 automatically assigned
127 call for all (e.g. an incoming call)
127 broadcast to all devices (e.g. an incoming call)
!verboff
!b1PBX!b0 (Private Branch eXchange)
!verbon
@ -732,15 +734,15 @@ Q: Do I need a DOS setup program to setup my Teles card?
A: Karsten Keil <keil@temic-ech.spacenet.de> wrote on 21 Feb 1997:!br
You don't need a DOS setup for Linux, with one exception:!br
Teles once offered a Charge PnP card that did not do PnP correctly.
These card can be recognized in that the have NO jumper/dip switch, but are not
recognized by isapnp .!br
All other cards are configured with the Linux drivers or with isapnp
These card can be recognized in that the have NO jumper/dip switch, but are
not recognized by isapnp.!br
All other cards are configured with the Linux drivers or with isapnp.
!old
Q: Does the driver support "dial on demand"?
A: Yes. If a network interface (e.g. "isdn0") is set up, the driver will dial
the number. If in addition a hangup timeout (Idle Timeout) has been given,
isdnctrl huptime <interfaceY> time, then the driver will automatically hang
isdnctrl huptime <interface> time, then the driver will automatically hang
up when no data was been transferred over the interface for "time" seconds.
However, with syncPPP there are problems (see the syncPPP section).!br
Also look at the dialmode description (next question).
@ -783,7 +785,7 @@ A: The new ISDN drivers in 2.0.36 defaults to manual dialmode, not
Q: Does isdn4linux support PNP (Plug and Play)?
A: Yes, but only with the HiSax driver. With "Plug" alone
it's unfortunately not yet ready, more work is necessary: (from
Karsten Keil <keil@temic-ech.spacenet.de>)
Karsten Keil <keil@temic-ech.spacenet.de>):
!verbon
1. HiSax has to be patched into the kernel
(Attention: use the "-pn" parameter!)
@ -891,10 +893,9 @@ A: Michael Stiller <michael@toyland.ping.de> wrote on 23 Oct 1996:!br
30 Oct 1996:
!verbon
After finding the patch from Eberhard Moenkeberg at ftp.gwdg.de cannot
dump cisco HDLC, I made my own patch for
tcpdump-3.0.4 that asks the interface which
encapsulation it used and sets itself accordingly. The patch is
against a tcpdump-3.0.4-1.tar.gz distribution, for example at
dump cisco HDLC, I made my own patch for tcpdump-3.0.4 that asks the
interface which encapsulation it used and sets itself accordingly. The
patch is against a tcpdump-3.0.4-1.tar.gz distribution, for example at
!link ftp://ftp.funet.fi/pub/Linux/PEOPLE/Linus/tools;.
This patch recognizes rawIP, ISDN-IP and CISCO-HDLC and can
dump these packets.
@ -947,7 +948,7 @@ Q: How many MSNs do I need if I want to do the following:
* Telephone
* Analogue modem (used for data, fax or voice mailbox)
* Dialin for X.75 (modem emulation)
* Dialin for syncPPP
* Dialin for syncPPP or rawip
!verboff
A: One!!!!br
The two different types of dialin can be recognized using the
@ -968,12 +969,33 @@ A: One!!!!br
you know the code to switch it off).!br
[With a suitable modem, mgetty can work as answering machine, and fax
machine and data modem - Ed.]!br
Or: if you have an ISDN PABX that allows call forwarding. You can
Or: if you have an ISDN PBX that allows call forwarding. You can
even daisy-chain these if you run out of analogue ports.!br
[Despite this, you will find life simpler if you can give the
telephone and modem separate MSNs (the ideal solution if you have
at least 2 MSNs) - Ed.]
Q: Can I do the following things on the *SAME* MSN:
!verbon
* Telephone (voice)
* VBOX (also voice)
* Dialin for X.75 (modem emulation)
* Dialin for syncPPP or rawip
!verboff
A: This works in the same way as on the previous question. The only change is
to use VBOX instead of the answering machine. VBOX automatically cooperates
with the telephone. It picks up the phone only after the x-th ring
(depending on its configuration).
Gernot Zander <hifi@scorpio.in-berlin.de> wrote on this subject Dec. 4
1996:!br
Yes. However, IP dialin cannot be differentiated from X.75
dialin, so you are either restricted to dialout, or you must enter
the MSN of the other party and set secure to on. Then the driver will
start by asking the net interfaces, and if none match, the call will
be handed on to the ttyIs. If someone wants to have the choice between
calling you with X.75 or with IP, they will have to use different
outgoing MSNs to call you from.
Q: What is my MSN?
A: Your telephone company will tell you your MSN. It is your own telephone
number. The following questions, together with the chapter on national
@ -1007,29 +1029,12 @@ A: If you want to call yourself as a test then you have to configure
Q: How can I find out how my telephone number is transmitted to the
calling party?
A: The transmitted MSN can simply be determined, by calling yourself
A: The transmitted MSN can simply be determined by calling yourself
(for example by telephone). In the log files you will find the
entry that looks like: "isdn_tty: call from XXX -> YYY ignored"
(in order for this to work, you must of course already have the ISDN
drivers in your kernel and active).
Q: Can I do the following on *THE SAME* MSN:
!verbon
- Telephony (voice)
- VBOX (voice, of course)
- X.75 login (mgetty, /dev/ttyI?)
- IP interface for IP connections to other computers?
!verboff
A: Gernot Zander <hifi@scorpio.in-berlin.de> wrote on this subject Dec. 4
1996:!br
Yes. However, IP dialin cannot be differentiated from X.75
dialin, so you are either restricted to dialout, or you must enter
the MSN of the other party and set secure to on. Then the driver will
start by asking the net interfaces, and if none match, the call will
be handed on to the ttyIs. If someone wants to have the choice between
calling you with X.75 or with IP, they will have to use different
outgoing MSNs to call you from.
Q: How can I minimize the number of MSNs needed for dialin?
A: See the question in the chapter on dialin.
@ -1187,7 +1192,7 @@ Q: Which version is current?
A: Version 1.4.
!old
Q: How is HiSax better as the original Teles driver?
Q: How is HiSax better than the original Teles driver?
A: Karsten wrote to the FAQ team on 14.Oct.96:
!verbon
HiSax checks the hardware and the behavior of the IRQ, so that the
@ -1383,7 +1388,7 @@ A: "lanx75i.bin" is old. Previously, with EDSS1 only HDLC was supported.
!verboff
!3Working together with other ISDN devices
!3Connecting to the remote ISDN device
!old
Q: What settings does ISPA etc. (DOS, Windows) need to work with the
@ -1738,11 +1743,11 @@ A: Harald Milz <hm@seneca.muc.de> wrote on 28 Nov 1996:!br
Q: Does modem emulation mean that I can toss out my analog modem?
A: No, the name "modem emulation" refers only to the way your own computer
communicates withe the ISDN driver. It has !u1nothing!u0 to do with the
communicates with the ISDN driver. It has !u1nothing!u0 to do with the
way the data is sent by the ISDN driver over the telephone line - that
is done digitally! That means that the ISDN driver will !u1not!u0 be
able to connect to a non-ISDN BBS!br
The name is justifies, because any Linux software that can send commands
The name is justified, because any Linux software that can send commands
to a modem can also via "modem emulation" send commands to the ISDN driver.
And that's what we really want.
@ -1931,7 +1936,7 @@ A: All ippp* devices in use must be configured separately with
"isdnctrl addif" etc. Each ippp* device should be assigned to
its own IP address (routing!).!br
Several ippp* devices can be assigned to a single MSN.
Several callers can then simultaneously use this MSN.
Several callers can then simultaneously use this MSN.
!old
Q: I want to talk to remote machines which needs different configurations. The
@ -1943,7 +1948,6 @@ A: You must bind a network interface explicitly to an ippp device, where you
"isdnctrl pppbind <interface> <Number>"!br
you can link the interface <interface> to the device ippp<Nummer>. You can
release the link with "pppunbind".
Q: How does the (little-documented) "pppbind" command in isdnctrl work?
A: You have to first know how ipppd gets its data. All data that come in
@ -2312,7 +2316,6 @@ A: Because the ISDN card, like all ISDN device, has separate lines for
Q: How can I get isdnlog to also show the telephone numbers for other
ISDN devices?
A: There are two possibilities. First, the German Telekom offers the service
COLP (Connected Line Identification Presentation, ca. DM 10 per month per
basic line) that returns all data sent. This can then be read by isdnlog
@ -2338,7 +2341,7 @@ A: There are two possibilities. First, the German Telekom offers the service
PBXs tested up to now have all been too slow (in particular the widely
used ISTEC). The only possibility is to combine the data afterwards. But
then there are problems with synchronizing the different times. Whoever
want to attempt to do this is welcomme (I'll make the logs from my
want to attempt to do this is welcome (I'll make the logs from my
Ackermann Euracom available - Matthias Heßler <hessler@wi-inf.uni-essen.de>).
Q: Does isdnlog also calculate the new pricing plans of the German Telecom
@ -2368,6 +2371,7 @@ A: You can use "xisdnload". Clemens Perz <listperz@gwsnet.ttt.de> on 6 Feb 1997
!3Isdnbutton
Q: What script should I use to bring down isdnbutton?
A: Markus Gutschke <gutschk@uni-muenster.de> (the author) wrote
on 21 Dec 1996:!br
@ -2474,6 +2478,7 @@ A: We receive the following tip form Christian Stueble
As a first test you can try <file>.msg > /dev/audio, you should
be able to hear something.
!3Diald
!old
@ -2641,7 +2646,6 @@ A: The same way as via a normal serial port. Start a getty (mgetty from Gert
to start iprofd in you isdn init script, and to initialize the appropriate
ISDN tty devices with ATZ
!old
Q: Someone would like to dial in to my mgetty with HDLC. Is ttyI1 correct,
or do I have to start with ttyI0?
@ -2684,7 +2688,6 @@ A: You have to configure exactly as many gettys or network interfaces as the
However, not more than one getty can be assigned to a single ttyI* device.
See also the question "How can I use more than one ippp* device?"
Q: Can I use just !u1one!u0 MSN to serve customers both with a getty (modem
emulation and with the network?
A: Gernot Zander <hifi@scorpio.in-berlin.de> wrote on 7 Nov 1996:!br
@ -2758,7 +2761,7 @@ A: Sakari Aaltonen <sakari@picea.hut.fi>:
A Banzai! might also help. As hardware any PC with (e.g.) Teles
cards would work, the software costs around 800-1000 DM. I
personally don't like Banzai! routers at all because of their
poor diagnostic capabilities, in particular remote maintenance as
poor diagnostic capabilities, in particular remote maintenance is
pretty much impossible (unless you have the SNMP capable version,
but it costs somewhat more). But when they run, they run stable
and as opposed to Ciscos they are capable of real callback. From
@ -2878,17 +2881,27 @@ A: The data are simply sent out! If you at the end of the D64S or 2MB
!old
Q: With i4l, how can I successfully use the Teles card on a D64 leased line?
A: A later version of the new HiSax driver will support
D64 (more about this driver above).
Michael Hipp <Michael.Hipp@student.uni-tuebingen.de> added on 8.10.1996:
A: A later version of the new HiSax driver will support D64 (more about this
driver above). Configuration is normal with the following specialities.
HiSax has to be run in leased mode:
!verbon
If you don't want to wait for Karsten's patch, you can try the
so-called isachscx driver. It can be found at
!link http://www.sfs.nphil.uni-tuebingen.de/~hipp/isdn/isachscx.c.gz;
The driver is derived from the i4l Teles driver, but doesn't need
the i4l link level. A desire to experiment is required to try
this driver.
/sbin/telesctrl HiSax 5 0
!verboff
in case HiSax was loaded with "id=HiSax". Additionally to the normal
configuration, the following commands are important:
!verbon
# bind interface on first BChannel (,1 for 2nd)
/sbin/isdnctrl bind HiSax,0
/sbin/isdnctrl eaz isdn0 1
/sbin/isdnctrl addphone isdn0 out 2
/sbin/isdnctrl addphone isdn0 in 3
!verboff
if "isdn0" was used as interface name. The interface has to be set to
"up" and a route associated with it. There is a more exact introduction
available which was postet a few time by Karsten Keil
<keil@temic-ech.spacenet.de> in the mailing list.!br
Marcus Graf <marcus@www.weinheim.de> has made available his experience as a
short info on !link http://www.weinheim.de/isdn/index.html;.
Q: Can I connect two computers with ICN cards over a D64s leased line?
How? Where can I find documentation?
@ -3099,28 +3112,33 @@ A: Robert O'Kane <okane@em.uni-frankfurt.de> wrote on 27 Dec 1996:!br
Q: What is MPPP?
A: MPPP or MP or MPP (Warning: MP is also an acronym for 'Multi Processor')
stands for Multi Point to Point and means bundling of several channels to
one logical stream. To enable MPPP negotiation you must call the ipppd with
the "+mp" option. You must also configure a slave device for every
one logical stream. It's a variation of the normal syncPPP. Accordingly, it
inherits all its advantages and disadvantages.!br
In contrast to raw bundling only one net interface is needed as interface
to the ipppd, since the ipppd handles all its channels by itself. Incoming
data is distributed round-robin by the ipppd on all available channels.
These channels do not necessarily have to be ISDN channels. In theory,
modem connections could be mixed with ISDN channels. However, here we only
cover ISDN channels.
Q: How do I use MPPP?
A: First you define a (normal) interface for ipppd (e.g. "isdnctrl addif
ippp0", etc). To enable MPPP negotiation you must call the ipppd with
the "+mp" option. You must also configure a slave device for every
additional channel (see the i4l manual for more). To use channel bundling
you must first activate the 'master' or initial call. Now you can add the
slave channels with the command:
!verbon
isdnctrl addlink <device>
!verboff
e.g.:
and close them with the command:
!verbon
isdnctrl addlink ippp0
isdnctrl removelink ippp0
!verboff
This is different to other encapsulations of isdn4linux! With syncPPP,
there is no automatic activation of slave devices.
!old
Q: How can I use the MPPP material?
A: To use the MPPP material, you have to configure a slave device with
ISDN4Linux. ipppd can then be started with the "+mp" option. To increase the
number of open connections, use the "addlink" option of the "isdnctrl"
command. In the file etc/rc.isdn.syncppp.MPPP in the isdn4kernel-util
Package you can find an example script.
there is no automatic activation of slave devices.!br
In the file etc/rc.isdn.syncppp.MPPP in the isdn4k-utils package you
may find a sample script (unfortunately missing in some i4l version).
Q: What are the advantages and disadvantages of MPPP?
A: A disadvantage is that the slave channel has to be activated
@ -3156,6 +3174,8 @@ A: Szemethy Tivadar <tiv@sch.bme.hu> wrote 11.10.1996:
then MPP connection has a better chance.
Without this change, MPP will hang when just one packet is lost.
!verboff
[In the meantime, the bug fix should have found its way into the kernel
- Ed.]
!2Troubleshooting
@ -3231,7 +3251,8 @@ A: You need to set a link:
bash$ dpkg -S panel.h
ncurses3.0-dev: /usr/include/panel.h
!verboff
[Analog change LDFLAGS in the makefile from "-lcurses" to "-lncurses"
- Ed.]
Q: Why does neither my telephone nor my fax machine ring when I call
them with isdn4linux?
@ -3421,7 +3442,8 @@ A: Sven Engelhardt <sven@sik.de> wrote on 20 Jan 1997:!br
since then I've kept away from them. If you still can't get it to work,
then there are a few thousand software patches for the HiComs, the
technicians have simply have to want to apply them. Sometimes it helps
to look at the programming handbook together with the technician to find
to look at the programming handbook together with the technician and to
locate the page for the configuration of digital equipment.
!old
Q: isdnctrl returns a "bus error" when I do a "isdnctrl list"?
@ -3433,6 +3455,7 @@ A: Christian Kratzer <ck@toplink1.toplink.net> gave the patch:
---
> if (cfg.slave && strlen(cfg.slave))
!verboff
[Should be fixed in the mean time - Ed.]
!old
Q: After a hangup "no routine" is printed on /dev/isdnctrl. Did it release my
@ -3460,11 +3483,16 @@ A: Answer by Jan den Ouden <denouden@groovin.xs4all.nl>:
!verbon
(4096<<HSCX_RBUF_ORDER)/HSCX_RBUF_BPPS
!verboff
This would lead to buffer with a size of about 4k. The number of buffers
is MSCX_RBUF_BPPS*HSCX_RBUF_MAXPAGES, which normally gives 6. You can
increase that number by increasing HSCX_RBUF_MAXPAGES. This is just a
limit, there is no buffer allocation when they are not needed.
This would lead to buffer with a size of about 4k. The number of buffers
is MSCX_RBUF_BPPS*HSCX_RBUF_MAXPAGES, which normally gives 6. You can
increase that number by increasing HSCX_RBUF_MAXPAGES. This is just a
limit, there is no buffer allocation when they are not needed.!br
[You can do the same on "HSCX RFP out of buffers" messages - Ed.]!br
Andreas Kool <akool@Kool.f.EUnet.de> added:
!verbon
These error are often caused by bad sound cards or their drivers when
they disable the interrupts too long!
!verboff
Q: My pppd or ipppd has problems with PAP/CHAP authentication.
A: See the appropriate question under "Sync PPP"?
@ -3669,6 +3697,7 @@ A: The file proto.h was not included in the patch. It should read::
#endif
!verboff
!3HiSax driver
Q: How can I tell whether my ISDN card has been corrected recognized by
@ -3714,6 +3743,7 @@ A: It's probably not a Plug 'n Play card at all - even though Teles
to recognize: a real Teles PNP card no longer has the (tiny) Dip switches
on the card to set the IO addresses.
!3ICN driver
@ -3722,7 +3752,8 @@ Q: On dialing out/in with my ICN packets get lost.
A: Torsten Hentschel <Torsten.Hentschel@DInet.de> has a patch for kernel 2.0.21
which definitely does not lose any more packets. Contact Torsten.
!3Working together with other ISDN devices
!3Connecting to remote ISDN devices
!old
Q: I have problems connecting to an ELink.
@ -3892,6 +3923,7 @@ A: Fritz Elfert <fritz@wuemaus.franken.de> wrote on 17 Feb 1997:
compile iprofd again, and (IMPORTANT) delete the saved profile
file.
!3Async PPP
Q: How can I get a log for pppd?
@ -4400,8 +4432,8 @@ A: The caller has most likely activated the (costly) feature CLIP
In any case, you can only fool software/PBXs that do not evaluate
the screening indicator - isdnlog with version 2.52 shows both the
correct *and* the faked telephone number.!br
...CLIP was actually designed for transmitting internal company
numbers in the public network.
...CLIP, no screening was actually designed for transmitting internal
company numbers in the public network.
!old
Q: When calling I receive a "Internal error: wrong structure".
@ -4549,6 +4581,7 @@ A: This is a known bug that occurs when switching between the playing of
the announcement and recording the message. Up to now there is no
known workaround.
!3Dialout on demand
Q: What can cause a charge unit disaster?
@ -4670,7 +4703,7 @@ Q: Can it be that the Win95 machine on my LAN is causing automatic
dialouts?
A: Stefan Luethje <luethje@sl-gw.lake.de> wrote on 27 Nov 1996:
!verbon
Whin in Wintel the name server of your provider is given, and
If in Wintel the name server of your provider is given, and
Windows 3.11/95 is started, then it has to talk to the name
server (only Bill Gates knows why).
!verboff
@ -4688,7 +4721,7 @@ A: Jens Ey <jens@jeyhh.shnet.org> wrote on 29 Nov 1996:!br
Linux in a LAN that I installed an external terminal adapter, set up
a proxy server, and set up diald that only DNS requests from the Linux
machine were allowed to be carried out. Then the connections are
established only when they are actually needed. The (cached) local DNS
established only when they are actually needed. The (caching) local DNS
is only used after the connection has been established.
Q: How can I turn off the DNS requests for WORKGROUP.xxx from my
@ -4773,10 +4806,9 @@ A: Winfried Haug <haug@seicom.net> wrote:
routers and on leased lines.
!verboff
!old
Q: My Internet provider won't switch off keep alive packets so ipppd never hangs
up.
Q: My Internet provider won't switch off keep alive packets so ipppd never
hangs up.
A: Dirk Melchers <dirk@merlin.nbg.sub.org> wrote about this:
!verbon
LCP messages are considered traffic and keep the line open. There was a
@ -4825,7 +4857,7 @@ A: That's a known bug. There is a patch available to fix it.
It looks now like this:
#ifdef CONFIG_ISDN_PPP
if (p->local.p_encap == ISDN_NET_ENCAP_SYNCPPP)
ippp_table[lp->ppp_minor]->state = IPPP_OPEN;
ippp_table[lp->ppp_minor]->state = IPPP_OPEN;
#endif
!verboff
It can be assumed that this will be fixed in an improved ipppd.
@ -4911,6 +4943,32 @@ A: Torsten Hentschel <Torsten.Hentschel@DInet.de> wrote on 3 Oct 1996:
changed without a B-channel connection. A callback request just by caller
id could in doubt be considered as a transmission of information).
!verboff
Torsten Hentschel <Torsten.Hentschel@DInet.de> additionally wrote on
20. Nov 1996:
!verbon
I've often tried callback over PPP with two CISCOs. From my experience,
trials in the combination CISCO <-> Linux will not be successful.
A CISCO always handshakes a callback request via PPP. To do this, the
other side has to first unhook and then do all the handshaking
(authentication,...). Then both hang up and the callback is placed.
isdnctrl commands of Linux influence only the kernels net devices
and have no or hardly any influence on how the ipppd handles callbacks.
He does not recognize that he is supposed to expect that the remote
side calls back.
Accordingly he rejects the offer of the CISCO via PPP, that the CISCO
is ready to call back. Then the CISCO assumes that it should not call
back (it wants to see an explicit callback request during the PPP
handshaking).
The CISCO will confirm this when you log onto it and check with these
commands:
deb ppp chap
deb ppp negotiotion
deb ppp error
term mon
its debug messages about the dial in trials of your Linux computer.
You have to do this via telnet instead of on the console - otherwise
the CISCO won't be able to handle the logging via the serial interface.
!verboff
Q: Callback from an Ascend works only when I set "Active=Yes" in the
Ascend menu; but then the Ascend keeps calling me, even when my
@ -4945,6 +5003,7 @@ A: Karsten Keil <keil@temic-ech.spacenet.de> has as a temporary workaround
!verboff
Please use with appropriate caution!
!3MPPP
!old
@ -4959,6 +5018,7 @@ A: Michael Hipp <Michael.Hipp@student.uni-tuebingen.de> wrote on 11 Oct 1996:
not working.
!verboff
!2National Peculiarities
[Translator's note: Here are some notes we've received that are
@ -5021,6 +5081,11 @@ A: You can use all available EAZ. However, two EAZ have a special meaning and
EAZ 0: global call (all telephones ring)
EAZ 9: global call (no telephone rings)
!verboff
Gernot Zander <hifi@scorpio.in-berlin.de> wrote about this on 6. Jan 1997:
!verbon
I would not use 0, for my taste it is too likely that i4l will steal
all voice connections.
!verboff
Q: I use 1TR6 on an extension - the extension number has more than one
digit (e.g. 206). What is my EAZ?
@ -5034,6 +5099,7 @@ A: Karsten Keil <isdn4@temic-ech.spacenet.de> has fixed that with the new
"HiSax" driver.
See questions General HiSax and the section about the HiSax driver.
!3Italy
Q: What does our MSN look like?
@ -5049,11 +5115,12 @@ with Italian lines.
The MSN must be the phone number with the Italian area code but without
the leading 0. For example, if my phone number is 72004681 and my area
code is 045, my MSN is 4572004681.
code is 045, my MSN is 4572004681.
Now with the setting AT&E4572004681 isdn4linux works fine. ]
!verboff
!3The Netherlands
Q: What does our MSN look like?
@ -5116,6 +5183,7 @@ A: CPN=Called Party Number, the number of your own side. It's missing, that's
was set to the EAZ of your getty. It could also be an error of your
telephone company.
!3Switzerland
!old
@ -5147,6 +5215,7 @@ Q: What should we use as MSN?
A: As long as only one telephone number or MSN was applied for, the telephone
company sends no caller ID. Therefore the MSN should be set to "0".
If more than one MSNs was applied for, then these should be set as usual.
!3North America
@ -5255,14 +5324,3 @@ A: dietmar <dietmar@highway.bertelsmann.de> wrote on 8 Oct 1996:
!link http://www.ora.com/catalog/sendmail/noframes.html;
!link http://www.lob.de/;
!verboff