I have following problem: using QNX 4.25, TCP/IP toolkit 4.25 (pppd from
19.2.1999) I try to connect to server:
- my proprietary modem driver dials and establishes modem connection
- pppd with option “connect chat -f login_script” is launched
However, pppd before launching chat drops DTR signal and the line disconnects
before chat can login.
Question: can I suppress the pppd manipulation with DTR signal through
some option (pppd option “modem”, either enabled or disabled, does not
affect this behaviour) ?
If no, where can I find the pppd sources ?
one can do that by changing the modem settings to “DTR ALWAYS ON” (if a
modem supports this), or one can use the chat script not only for login,
but also for dialing as well (no need for any modem driver), however:
- some modems don’t support “+++” escape sequence, the DTR signal
must be used for disconnecting
- we use proprietary modem driver (for dialling, for call answering),
so I should dial through this driver and not through chat script
in order to avoid inconsistencies in project.
Mgr. Martin Gazak, MicroStep-MIS
Ilkovicova 3, 841 04 Bratislava, Slovakia
Tel: +421 2 60291 816