pppd.1 (2010 09)

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pppd(1) pppd(1)

NAME

pppd - PPP point to point protocal daemon

SYNOPSIS

pppd [options ]...

DESCRIPTION

pppd is a daemon process used in UNIX systems to manage connections to other hosts using PPP (Point

to Point Protocol) or SLIP (Serial Line Internet Protocol). It uses the UNIX host’s native serial ports. It

communicates with the UNIX kernel’s own TCP/IP implementation via the HP IP tunnel driver.

The functionality supplied by this daemon supersedes that provided by

ppl in HP-UX prior to Release

10.30.

ppl only supported the SLIP and CSLIP (Compressed Header SLIP) protocols.

Daemon Management Options

auto Start in "autocall" mode and detach from the controlling terminal to run as a

daemon. Initiate a connection in response to a packet speciﬁed in the

"bringup" category in ﬁlter-ﬁle. Requires the remote address.

up When used with auto, bring the link up immediately rather than waiting for

trafﬁc. If the link goes down, attempt to restart it (after the call retry delay

timer expires) without waiting for an outbound packet.

dedicated Treat the connection as a dedicated line rather than a demand-dial connec-

tion. This option tells pppd to never give up on the connection; that is, if the

peer tries to shut down the link, go ahead and do so, but then immediately try

to reestablish the connection. Similarly, when ﬁrst trying to connect, pppd

will not give up after sending a ﬁxed number of Conﬁgure-Request messages.

Hangup events (LQM failures, loss of Carrier Detect) will still cause the device

to be closed, just as with dial-up connections, and the

Systems ﬁle will then

be checked for alternate entries. If none are available, the connection will be

reestablished after the call retry delay timer expires. Use a short call retry

delay timer on dedicated circuits; something like Any;5-30 should work

well. Implies up.

altdelay delay Set the delay of delay seconds between dialing each alternate numbers in the

Systems ﬁle for the same destination. The default value is 1 second.

nodetach Don’t detach from the controlling terminal in "autocall" mode. When used

with log -, this can be useful for watching the progress of the PPP session.

log log-file Append logging messages to log-ﬁle (default: /var/adm/pppd.log

acct acct-file Append session accounting messages to acct-ﬁle.Ifacct-ﬁle is the same as

log-ﬁle, the session accounting messages will be interleaved with other logging

information.

filter filter-file Look in ﬁlter-ﬁle for packet ﬁltering and link management information

(default: /etc/ppp/Filter).

debug debug-level Set the log ﬁle verbosity to the following debug-level and each debugging ver-

bosity level also provides the information of all the lower-numbered levels.

0 Daemon start messages

1 Link status messages, calling attempts (the default)

2 Chat script processing, input framing errors

3 LCP, IPCP, IPV6CP, PAP and CHAP negotiation

4 LQM status summaries

5 IP interface changes

6 IP message summaries

7 Full LQM reports

8 All PPP messages (without framing)

9 Characters read or written

10 Procedure call messages

11 Internal timers

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

Summary of content (8 pages)

PAGE 1
pppd(1) pppd(1) NAME pppd - PPP point to point protocal daemon SYNOPSIS pppd [options ]... DESCRIPTION pppd is a daemon process used in UNIX systems to manage connections to other hosts using PPP (Point to Point Protocol) or SLIP (Serial Line Internet Protocol). It uses the UNIX host’s native serial ports. It communicates with the UNIX kernel’s own TCP/IP implementation via the HP IP tunnel driver. The functionality supplied by this daemon supersedes that provided by ppl in HP-UX prior to Release 10.30.
PAGE 2
pppd(1) pppd(1) exec exec-cmd Run exec-cmd up addr args when the link comes up, and exec-cmd down addr args when it goes down; where addr is the IP address of the peer, and args is the list of arguments given to pppd. exec6 exec-cmd Run exec-cmd up interface-id args when the link comes up, and exec-cmd down interface-id args when it goes down; where interfac-id is the 64-bit IPv6 interface identifier of the peer, and args is the list of arguments supplied to pppd.
PAGE 3
pppd(1) pppd(1) noaccomp Disable HDLC Address and Control Field compression. noprotcomp Disable LCP Protocol Field Compression. slip Use RFC 1055 SLIP packet framing rather than PPP packet framing. Disables all option negotiation, and implies noasyncmap, noipaddress, vjslots 16, novjcid, nomagic, nomru, and mru 1006. Implies vjcomp if peer sends a header-compressed TCP packet.
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pppd(1) IP Options local :remote pppd(1) The address of this machine, followed by the expected address for the remote machine. Can be specified either as symbolic names or as literal IP addresses, if their addresses cannot be discovered locally without using the PPP link. Both addresses are optional, but a colon by itself is not valid, and the remote address is required when running as a daemon in "autocall" mode.
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pppd(1) pppd(1) rfc1172-addresses Backwards compatibility with older PPP implementations that conform to RFC 1172 section 5.1 (IP-Addresses, IPCP configuration option 1) and not with the newer RFC 1332 (IP-Address, IPCP configuration option 3), but that respond with something besides a Configure-Reject when they receive an IPCP Configure-Request containing an option 3.
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pppd(1) pppd(1) frag The packet is a middle or later part of a fragmented IP frame. syn The packet has the TCP SYN bit set. fin The packet has the TCP FIN bit set. bringup The transmitted packet matches the bringup filter and is bringing up the link. !keepup the packet has been rejected by the keepup filter. !pass The packet has been rejected by the pass filter. dial failed The packet was dropped because pppd is waiting for the call retry timer to expire.
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pppd(1) pppd(1) echo -n "Starting PPP daemons:" >/dev/console pppd oursystem:backbonesystem auto noipv6 up (echo -n ’ backbonesystem’) >/dev/console pppd oursystem:backbonesystem ipv6 , auto up /dev/console pppd oursystem:theirsystem auto noipv6 idle 120 (echo -n ’ theirsystem’) >/dev/console pppd oursystem:theirsystem ipv6 , auto idle 120 >/dev/console To allow a PPP implementation running on "theirs
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(Notes) A (Notes) pA 8 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010