This appendix is a reference for
chat. These tools are used to
create dial-up IP connections for the Point-to-Point Protocol (PPP).
chat are both scripting languages.
Creating a script that initializes the modem, dials the remote server,
logs in, and configures the remote server is the biggest task in
configuring a PPP connection. Chapter 6
provides examples and tutorial information about all three of the programs
covered here. This appendix provides a reference to the programs.
dip is a scripting tool
designed specifically for creating SLIP and PPP
The syntax of the
dip command is invoked with
an option set, a script file specified, or both. When
scriptfile is specified,
dip executes the commands contained in the
script file to create a point-to-point connection. Examples of scripts
dip are shown in Chapter 6. The
valid with script files are:
dip in verbose mode.
In this mode,
dip echoes each
line of the script file as it is executed and displays enhanced
Sets the maximum transmission unit (MTU) to the number of
bytes specified by
mtu. The default MTU
is 296 bytes.
Selects the serial line protocol. Possible values for
proto are: SLIP, CSLIP, PPP, or
Kills the last
process you started. You can only kill a process you own, unless
of course you’re root.