Connect to the remote side using cu

If the remote system requires that you log in using a chat script to start a PPP session, restart the connection server with debugging turned on, and use the cu(1bnu) command to connect to the remote system:

1. Enter the following command to discover the process ID (pid) of the connection server:
   
   ps -ef | grep cs

2. Kill the connection server process:
   
   kill pid

3. Restart the connection server with debugging turned on:
   
   cs -d

   This will generate information in the /var/adm/log/cs.debug file about the line settings and how a call is set up.

4. Enter the following command to connect to the remote system:
   
   cu remotesys

   remotesys is the entry for the remote system in the Systems(4bnu) file. This command will allow you to check the chat script defined in the entry for the remote system in the Systems(4bnu) file by dialing and logging into the remote system. In this case, you must enter the name and password yourself because cu does not invoke the chat script by default. If you want cu to invoke the chat script to see how well it works, specify the -x option:
   
   cu -x remotesys

   You can obtain more debugging information by specifying the -d option to cu.

   Enter ~. to drop the connection.

Common problems are:

• Cabling or other hardware problems. See ``Configuring serial ports'' and ``Adding and configuring modems'' for more information.

• Incorrect telephone number. If you need to dial a prefix number to obtain an external line, do not forget to include this.

• Incorrect expect strings for the user name and password prompts in the login chat script. Some systems may prompt with ``Username:'' instead of ``login:'', for example.

• The remote side requires to see an initial carriage return before it will prompt you for a user name. A subsend-subexpect string such as ``in:--in:'' in the chat script will allow for this.

• The chat script defines incorrect send strings in response to the user name and password prompts.

• The chat script is missing additional expect and send strings. The remote side may require a command (such as ppp) to be entered to initiate a PPP session.