ppp.Systems.4 (2010 09)

ManualsBrandsHP ManualsSoftwareHP-UX Manpages

ppp.Systems(4) ppp.Systems(4)

NAME

ppp.Systems - PPP neighboring systems description ﬁle format

DESCRIPTION

The ﬁle

/etc/ppp/Systems

describes how to connect with neighboring systems via PPP.

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 are ignored in hostname speciﬁcations, but are signiﬁcant elsewhere.

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 six ﬁelds, in the following order:

name The hostname or IP address of the destination machine, which should be resolvable locally.

when A string that indicates the days of the week and the times of day when the system can be

called (for example, MoTuTh0800-1740). The day portion may be a list containing any of Su,

Mo, Tu, We, Th, Fr or Sa. The day may also be Wk for any weekday (same as MoTuWeThFr) or

Any for any day (same as SuMoTuWeThFrSa).

You can indicate hours in a range (for example, 0800-1230). If you do not specify a time, calls

will be allowed at any time.

Note that a time range that spans 0000 is permitted. For example, 0800-0600 means that all

times are allowed except times between 6 AM and 8 AM.

Multiple date speciﬁcations that are separated by a vertical bar (|) are allowed. For example,

Any0100-0600|Sa|Su means that the system can be called any day between 1 AM and 6 AM

or any time on Saturday and Sunday.

The entire (sequence of) days and times may be followed by a semicolon and up to three

decimal numbers separated by hyphens:

one If only one number follows the semicolon, it is used as the redial delay, which is the

initial time (in seconds) before a failed call will be retried. For example, Any;60

means call any time, but wait at least 60 seconds after a failure has occurred before

trying to call again. If a call retry fails,

pppd will double the delay before trying

again. If no initial retry delay is speciﬁed, 10 seconds is assumed.

two If two numbers follow the semicolon, the second number is used as the maximum

redial delay, which is the maximum time (in seconds) to delay before retrying a call.

The retry time will double with each unsuccessful call until it reaches this value, after

which the call will be retried every time the maximum number of seconds passes. If

no maximum retry delay is speciﬁed, 3600 seconds is assumed.

three If three numbers follow the semicolon, the ﬁrst is used as the callback delay, the

second as the redial delay, and the third as the maximum redial delay. The callback

delay is the time (in seconds) to wait before attempting to re-establish a previously

active connection that ended because of an abrupt line disconnection (a Hangup or

SIGHUP event in the log ﬁle). The default is not to delay before calling back.

During the delay following an unsuccessful call, any level 7 debugging messages written to

pppd.log will have the message dial failed appended.

device If set to

ACU, any device in Devices with a matching speed may be used. The device’s dialer

chat script will be executed ﬁrst, followed by the Systems chat script.

If set to the name of a device in the

/dev directory (tty00, cua, etc.), then there may be an

optional corresponding Direct entry in Devices, Dialers will not be consulted, and only

the Systems chat script will be executed.

If set to

tcp, then it must be followed by a slash, then the hostname or IP address of the sys-

tem that will serve as the destination of the PPP link, then another slash, then the socket

number on which to contact the remote PPP daemon.

speed The speed of the connection. If the device ﬁeld is ACU, the speed ﬁeld will be string matched

against entries in

Devices. Speeds must either be valid speed numbers or must begin with

them (2400, 38400, 19200-PEP, etc.). If the device ﬁeld is tcp ... or telnet ..., the

HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1

Summary of content (4 pages)

PAGE 1
ppp.Systems(4) ppp.Systems(4) NAME ppp.Systems - PPP neighboring systems description file format DESCRIPTION The file /etc/ppp/Systems describes how to connect with neighboring systems via PPP. 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 are ignored in hostname specifications, but are significant elsewhere. Fields on a line are separated by horizontal white space (blanks or tabs).
PAGE 2
ppp.Systems(4) ppp.Systems(4) speed field is ignored, but must be present as a place-holder. phone number The value to replace the \T escape sequence in the dialer script. If the device field names an entry in /dev, the phone number field is optional. If the device field is tcp ... or telnet ..., the phone number field is ignored if present, but must be present as a placeholder. chat script A description of the conversation that pppd holds with the remote machine.
PAGE 3
ppp.Systems(4) ppp.Systems(4) \q Don’t print following send strings (e.g., a password) in any debugging or logging output. Subsequent \q sequences toggle quiet mode. \A Parse the incoming string as an IP address, written as four decimal numbers separated by periods, and use it for the local end of the point-to-point connection (receive only). EXAMPLES In the example below, we call host everyone using a Telebit PEP modem with its DTE interface set at 19200 bps. We call host nobody using a V.32/V.42/V.
PAGE 4
(Notes) A (Notes) pA 4 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010