Installing and Administering PPP

32 Chapter 2
Setting Up PPP Connections
Configuring Your Modem
• Set the modem to disconnect the call and restore its saved values
when the computer deasserts the Data Terminal Ready (DTR) signal
HP recommends that you verify that your modem connection is working
correctly before configuring a PPP connection. This will detect any
hardware, software, or modem configuration problems that are not
related to the protocol.
To verify that the modem connection is working, use the following
command to connect to a remote system.
cu -l device_file -s speed
You should be able to connect to a remote system using the cu command
before configuring pppd. The remote system should display a login
prompt and users can login to the remote system. This will verify that
the modem line is functional. Refer to Appendix A, “Modem
Connections,” for general information about modems.