.\" manual page [] for pppd 2.3
-.\" $Id: pppd.8,v 1.41 1999/07/21 00:24:32 paulus Exp $
+.\" $Id: pppd.8,v 1.46 1999/08/24 05:31:10 paulus Exp $
.\" SH section heading
.\" SS subsection heading
.\" LP paragraph
will ask the peer to send packets of no more than \fIn\fR bytes. The
minimum MRU value is 128. The default MRU value is 1500. A value of
296 is recommended for slow links (40 bytes for TCP/IP header + 256
-bytes of data).
+bytes of data). (Note that for IPv6 MRU must be at least 1280)
.TP
.B mtu \fIn
Set the MTU [Maximum Transmit Unit] value to \fIn\fR. Unless the
peer requests a smaller value via MRU negotiation, pppd will
request that the kernel networking code send data packets of no more
-than \fIn\fR bytes through the PPP network interface.
+than \fIn\fR bytes through the PPP network interface. (Note that for
+IPv6 MTU must be at least 1280)
.TP
.B passive
Enables the "passive" option in the LCP. With this option, pppd will
negotiation, unless the \fIipcp-accept-local\fR and/or
\fIipcp-accept-remote\fR options are given, respectively.
.TP
+.B ipv6 \fI<local_interface_identifier>\fR,\fI<remote_interface_identifier>
+Set the local and/or remote 64-bit interface identifier. Either one may be
+omitted. The identifier must be specified in standard ascii notation of
+IPv6 addresses (e.g. ::dead:beef). If the
+\fIipv6cp-use-ipaddr\fR
+option is given, the local identifier is the local IPv4 address (see above).
+Otherwise the identifier is randomized.
+.TP
.B active-filter \fIfilter-expression
Specifies a packet filter to be applied to data packets to determine
which packets are to be regarded as link activity, and therefore reset
option is given, the \fIstring\fR supplied is given as the 6th
parameter to those scripts.
.TP
+.B ipv6cp-max-configure \fIn
+Set the maximum number of IPv6CP configure-request transmissions to
+\fIn\fR (default 10).
+.TP
+.B ipv6cp-max-failure \fIn
+Set the maximum number of IPv6CP configure-NAKs returned before starting
+to send configure-Rejects instead to \fIn\fR (default 10).
+.TP
+.B ipv6cp-max-terminate \fIn
+Set the maximum number of IPv6CP terminate-request transmissions to
+\fIn\fR (default 3).
+.TP
+.B ipv6cp-restart \fIn
+Set the IPv6CP restart interval (retransmission timeout) to \fIn\fR
+seconds (default 3).
+.TP
.B ipx
Enable the IPXCP and IPX protocols. This option is presently only
supported under Linux, and only if your kernel has been configured to
Set the LCP restart interval (retransmission timeout) to \fIn\fR
seconds (default 3).
.TP
+.B linkname \fIname\fR
+Sets the logical name of the link to \fIname\fR. Pppd will create a
+file named \fBppp-\fIname\fB.pid\fR in /var/run (or /etc/ppp on some
+systems) containing its process ID. This can be useful in determining
+which instance of pppd is responsible for the link to a given peer
+system. This is a privileged option.
+.TP
.B local
Don't use the modem control lines. With this option, pppd will ignore
the state of the CD (Carrier Detect) signal from the modem and will
Append log messages to the file \fIfilename\fR (as well as sending the
log messages to syslog). The file is opened with the privileges of
the user who invoked pppd, in append mode.
+.TP
.B login
Use the system password database for authenticating the peer using
PAP, and record the user in the system wtmp file. Note that the peer
traffic for \fIn\fR seconds (i.e. \fIn\fR seconds after the first
network control protocol comes up).
.TP
+.B maxfail \fIn
+Terminate after \fIn\fR consecutive failed connection attempts. A
+value of 0 means no limit. The default value is 10.
+.TP
.B modem
Use the modem control lines. This option is the default. With this
option, pppd will wait for the CD (Carrier Detect) signal from the
only be required if the peer is buggy and gets confused by requests
from pppd for IPCP negotiation.
.TP
+.B noipv6
+Disable IPv6CP negotiation and IPv6 communication. This option should
+only be required if the peer is buggy and gets confused by requests
+from pppd for IPv6CP negotiation.
+.TP
.B noipdefault
Disables the default behaviour when no local IP address is specified,
which is to determine (if possible) the local IP address from the
specified.
.TP
.B nopredictor1
-Do not accept or agree to Predictor-1 comprssion.
+Do not accept or agree to Predictor-1 compression.
.TP
.B noproxyarp
Disable the \fIproxyarp\fR option. The system administrator who
.TP
.B 18
The init script failed (returned a non-zero exit status).
+.TP
+.B 19
+We failed to authenticate ourselves to the peer.
.SH SCRIPTS
Pppd invokes scripts at various stages in its processing which can be
used to perform site-specific ancillary processing. These scripts are
.B BYTES_RCVD
The number of bytes received (at the level of the serial port) during
the connection.
+.TP
+.B LINKNAME
+The logical name of the link, set with the \fIlinkname\fR option.
.P
Pppd invokes the following scripts, if they exist. It is not an error
if they don't exist.
invoked in the same manner and with the same parameters as the ip-up
script.
.TP
+.B /etc/ppp/ipv6-up
+Like /etc/ppp/ip-up, except that it is executed when the link is available
+for sending and receiving IPv6 packets. It is executed with the parameters
+.IP
+\fIinterface-name tty-device speed local-link-local-address
+remote-link-local-address ipparam\fR
+.TP
+.B /etc/ppp/ipv6-down
+Similar to /etc/ppp/ip-down, but it is executed when IPv6 packets can no
+longer be transmitted on the link. It is executed with the same parameters
+as the ipv6-up script.
+.TP
.B /etc/ppp/ipx-up
A program or script which is executed when the link is available for
sending and receiving IPX packets (that is, IPXCP has come up). It is
.B /var/run/ppp\fIn\fB.pid \fR(BSD or Linux), \fB/etc/ppp/ppp\fIn\fB.pid \fR(others)
Process-ID for pppd process on ppp interface unit \fIn\fR.
.TP
+.B /var/run/ppp-\fIname\fB.pid \fR(BSD or Linux), \fB/etc/ppp/ppp-\fIname\fB.pid \fR(others)
+Process-ID for pppd process for logical link \fIname\fR (see the
+\fIlinkname\fR option).
+.TP
.B /etc/ppp/pap-secrets
Usernames, passwords and IP addresses for PAP authentication. This
file should be owned by root and not readable or writable by any other
Simpson, W.A.
.I PPP in HDLC-like Framing.
July 1994.
+.TP
+.B RFC2472
+Haskin, D.
+.I IP Version 6 over PPP
+December 1998.
.SH NOTES
The following signals have the specified effect when sent to pppd.
.TP