1. Technology
Linux / Unix Command: wvdial
Command Library

NAME

wvdial - PPP dialer with built-in intelligence.

 

SYNOPSIS

wvdial --help | --version | --chat | --config | option=value | --no-syslog | section...

 

DESCRIPTION

wvdial is an intelligent PPP dialer, which means that it dials a modem and starts PPP in order to connect to the Internet. It is something like the chat(8) program, except that it uses heuristics to guess how to dial and log into your server rather than forcing you to write a login script.

When wvdial starts, it first loads its configuration from /etc/wvdial.conf and ~/.wvdialrc which contains basic information about the modem port, speed, and init string, along with information about your Internet Service Provider (ISP), such as the phone number, your username, and your password.

Then it initializes your modem and dials the server and waits for a connection (a CONNECT string from the modem). It understands and responds to typical connection problems (like BUSY and NO DIALTONE).

Any time after connecting, wvdial will start PPP if it sees a PPP sequence from the server. Otherwise, it tries to convince the server to start PPP by doing the following:

 - responding to any login/password prompts it sees;
 - interpreting "choose one of the following"-style menus;
 - eventually, sending the word "ppp" (a common terminal server command).

If all of this fails, wvdial just runs pppd(8) and hopes for the best. It will bring up the connection, and then wait patiently for you to drop the link by pressin CTRL-C.

 

OPTIONS

Several options are recognized by wvdial.
--chat
Run wvdial as a chat replacement from within pppd, instead of the more normal method of having wvdial negotiate the connection and then call pppd.
--remotename
Override the Remote Name setting in the dialer configuration section of the configuration file. This is mainly useful when you dial to multiple systems with the same user name and password, and you don't want to use inheritance to override this setting (which is the recommended way to do it).
--config [configfile]
Run wvdial with configfile as the configuration file (instead of /etc/wvdial.conf). This is mainly useful only if you want to have per-user configurations, or you want to avoid having dial-up information (usernames, passwords, calling card numbers, etc.) in a system wide configuration file.
--no-syslog
Don't output debug information to the syslog daemon (only useful together with --chat).
--help
Prints a short message describing how to use wvdial and exits.
--version
Displays wvdial's version number and exits.

wvdial is normally run without command line options, in which case it reads its configuration from the [Dialer Defaults] section of /etc/wvdial.conf. (The configuration file is described in more detail in wvdial.conf(5) manual page.)

One or more sections of /etc/wvdial.conf may be specified on the command line. Settings in these sections will override settings in [Dialer Defaults].

For example, the command:
wvdial phone2

will read default options from the [Dialer Defaults] section, then override any or all of the options with those found in the [Dialer phone2] section.

If more than one section is specified, they are processed in the order they are given. Each section will override all the sections that came before it.

For example, the command:
wvdial phone2 pulse shh

will read default options from the [Dialer Defaults] section, then override any or all of the options with those found in the [Dialer phone2] section, followed by the [Dialer pulse] section, and lastly the [Dialer shh] section.

Using this method, it is possible to easily configure wvdial to switch between different internet providers, modem init strings, account names, and so on without specifying the same configuration information over and over.

 

SEE ALSO

wvdial.conf(5), wvdialconf(1), pppd(8), chat(8).
FAQ:
http://www.dsb3.com/wvdial/


Important: Use the man command (% man) to see how a command is used on your particular computer.

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