loopctrl - configure isdnloop ISDN driver
SYNOPSIS
loopctrl [-d Driver-Id] action options ...
DESCRIPTION
loopctrl is used to setup the isdnloop ISDN driver.
OPTIONS
-d Driver-Id
selects the virtual S0 interface named by Driver-
Id. Driver-Ids are defined during driver initiali
sation. See isdnloop(4) for a description of the
syntax to be used for modularised and monolithic
driver versions. This option must be used to iden
tify the virtual S0 interface if more than one S0
interface is existent. If a single virtual S0
interface is used, it may be omitted. If using
more than one virtual card, support for the other
cards is enabled with the add action of loopctrl.
Ids may not start with digits or small x, because
these values are misinterpreted as numeric parame
ters by insmod. For loading the module, always the
newest modutils package should be used to avoid
problems during load.
The following actions may be given to loopctrl.
add [id]
enables support for an additional virtual card in
the driver. If id is missing, adds a card with an
id given by the system. with id given, adds a card
with an Id given by the user. Ids are checked
against conflicts, and if a conflict happens,
replaced by the system in the same manner as if no
Id was supplied.
leased on|off
switches between normal (dialup) and leased-line
mode. Leased-line mode is intended for usage with
S64K-lines or - if both channels are used - for
S02. These lines do not have a D-channel. When
leased-line mode is enabled, the driver simulates
incoming calls using special "phone-numbers" for
calling and called address which are generated as
follows:
Calling number:
LEASEDx
where x is the internal slot-number
of the S0 interface. This number
starts with 0 for the first S0
for every S0 interface configured
using the add action.
Called number:
x
where x is equal to the channel num
ber of the calling S0 interface
starting with 1.
start protocol phone1 [phone2 phone3]
starts the driver with the given D-channel proto
col. If protocol is 1tr6, only phone1 has to be
given. It is meant to be the base number of the
virtual S0 interface to which the EAZ is appended.
If protocol is dss1, phone1, phone2 and phone3 have
to be given and represent the three MSNs of the
virtual S0 interface.
dump is available if the program is configured using the
--enable-dump option only. The contents of internal
driver variables is dumped on stdout.
BUGS
This program and the isdnloop driver are ALPHA code. The
main intention for this driver is for testing the link
level and applications.
AUTHOR
© 1997 by Fritz Elfert <fritz@isdn4linux.de>
SEE ALSO
isdnctrl(8), isdnloop(4), isdninfo(4), isdnctrl(4),
ttyI(4).
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