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ppp.Dialers(4)

HP-UX 11i Version 3: February 2007
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NAME

ppp.Dialers — PPP dialer description file format

DESCRIPTION

The file /etc/ppp/Dialers describes how to dial each type of modem attached to the UNIX system that is to be made available for outbound PPP calls. pppd examines it when placing a call to a neighboring machine.

When pppd selects a line from Systems, it uses the speed field to select an entry in Devices, from which it uses the dialer field to select an entry in Dialers. pppd then interprets the chat script field from that dialer description.

Format

Entries are one to a line; blank lines are ignored. Comments begin with a # and extend to the end of the line. Upper/lower case distinctions in the dialer field are significant for matching purposes, as are strings in the chat script. Fields on a line are separated by horizontal white space (blanks or tabs). If a chat script ends with a backslash (\), the next line is considered a continuation of the chat script. Continuations may only occur in the midst of a chat script.

Each entry must contain these fields, in this order:

dialer

The name of this dialer, to be matched against the dialer field in Devices.

chat-script

A description of the conversation that pppd holds with the modem.

Chat Script Particulars

A chat script takes the form of a space-separated list of expect-send pairs. Each pair consists (at minimum) of a field to expect the remote end to send, then a field to send in response. Unless a send string ends with \c, pppd will follow it by sending a carriage return character (ASCII 0x0d).

Chat scripts are expect send expect send ... or expect-send-expect send ..., where the send following the hyphen is executed if the preceding expect fails to match received text.

Certain special words may be used in the chat script to control the behavior of pppd as it attempts to dial. Both ABORT and TIMEOUT must be in the expect phase of the chat script.

ABORT abort-string

If pppd sees abort-string while executing the remainder of the chat script, abort the dialing attempt and note the failure in the log file.

TIMEOUT timeout-time

While executing the current chat script, wait timeout-time seconds for a response before considering the dialing attempt to have timed out. Writes have a fixed 60-second timeout.

The expect-send couplet of '" ' P_WORD sets the line parity accordingly:

P_AUTO

Set transmission parity based on the parity observed in characters received in expect strings. This is the default.

P_ZERO

Transmit characters with the parity bit set to zero (8 bits, no parity).

P_ONE

Transmit characters with the parity bit set to one.

P_EVEN

Transmit characters with even parity.

P_ODD

Transmit characters with odd parity.

In the midst of either an expect string or a send string, ^x gets translated into the appropriate control character, and \x gets translated into x. Other special sequences are:

\s

Send or receive a space character (ASCII 0x20).

\t

Send or receive a horizontal tab character (ASCII 0x09).

\n

Send or receive a line feed character (ASCII 0x0a).

\r

Send or receive a carriage return character (ASCII 0x0d).

\\

Send or receive a backslash character (ASCII 0x5c).

\^

Send or receive a carat character (ASCII 0x5e).

^character

Send or receive the single character Ctrl-character (ASCII 0x00 through 0x1f).

\ddd

Send or receive a character, specified in octal digits.

\p

Pause for .25 second before proceeding (send only).

\d

Delay for two seconds before proceeding (send only).

\K

Send a break (.25 second of zero bits).

\M

Disable hangups (sets CLOCAL or LNOHANG).

\m

enable hangups (unsets CLOCAL or LNOHANG) (the default).

\c

Don't append a carriage return character after sending the preceding string (send only).

\q

Don't print succeeding send strings (e.g., a password) in any debugging or logging output. Subsequent \q sequences toggle quiet mode.

\T

Insert the telephone number (found in the fifth field of Systems) here.

EXAMPLES

# # Dialers - PPP dialers file # #Dialer Chat script T1600 ABORT NO\sCARRIER ABORT NO\sDIALTONE ABORT BUSY \ ABORT RRING\r\n\r\nRRING\r\n\r\nRRING \ ABORT ERROR TIMEOUT 5 "" AT OK-AT-OK \ ATS111=0DT\T TIMEOUT 30 CONNECT # T2500-PEP \ ABORT NO\sCARRIER ABORT NO\sDIALTONE ABORT BUSY \ ABORT RRING\r\n\r\nRRING\r\n\r\nRRING \ ABORT ERROR TIMEOUT 5 "" AT OK-AT-OK \ ATS111=0DT\T TIMEOUT 30 CONNECT\sFAST # USRv32bis \ ABORT ERROR ABORT NO\sANSWER ABORT NO\sCARRIER \ ABORT BUSY ABORT RRING\r\n\r\nRRING\r\n\r\nRRING \ ABORT NO\sDIAL\sTONE TIMEOUT 5 "" AT&F \ OK-ATQ0-OK ATB0E0X7&B1&H1&I0&K3&R2&S1 OK-AT-OK \ ATS01=1S02=255S19=0 OK-AT-OK ATDT\T TIMEOUT 30 \ CONNECT

AUTHOR

ppp.Dialers was developed by the Progressive Systems.

SEE ALSO

pppd(1), ppp.Auth(4), ppp.Devices(4), ppp.Filter(4), ppp.Keys(4), ppp.Systems(4).

RFC 1055. RFC 1144, RFC 1332, RFC 1548,

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