Section: Linux System Administration (8)
loopctrl - configure isdnloop ISDN driver
is used to setup the isdnloop
- -d Driver-Id
selects the virtual S0 interface named by
Driver-Ids are defined during driver initialisation. See
for a description of the syntax to be used for modularised and
monolithic driver versions.
be used to identify 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
action of loopctrl. Ids may
because these values are misinterpreted
as numeric parameters by
For loading the module, always the
package should be used to avoid problems during load.
may be given to
- add [id]
enables support for an additional virtual card in the driver. If
is missing, adds a card with an id given by the system. with
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:
is the internal slot-number of the S0 interface. This number starts with
for the first S0 interface and is incremented by one for every S0 interface
configured using the
is equal to the channel number of the calling S0 interface starting with
- start protocol phone1 [phone2 phone3]
starts the driver with the given D-channel protocol. If
has to be given. It is meant to be the base number of the virtual
S0 interface to which the EAZ is appended. If
phone1, phone2 and phone3
have to be given and represent the three MSNs of the virtual
is available if the program is configured using the
option only. The contents of internal driver variables is dumped on stdout.
This program and the isdnloop driver are
code. The main intention for this driver is for testing the link level
© 1997 by Fritz Elfert <email@example.com