Point-to-Point Protocol (PPP) to provide Internet connections over
serial lines.
-In this first beta release, the ports for SunOS, Solaris, NetBSD and
-Digital Unix (OSF/1) are believed to be working correctly. The Linux
-port mostly works, but still has some known bugs. The remaining ports
-haven't been tested extensively. The NeXTStep port is not included
-here since it hasn't been updated from 2.2 yet. For information on
-its current status, see http://www.thoughtport.com:8080/PPP/.
-
Introduction.
*************
The Point-to-Point Protocol (PPP) provides a standard way to establish
a network connection over a serial link. At present, this package
supports IP and the protocols layered above IP, such as TCP and UDP.
-The Linux port of this package also supports IPX.
+The Linux port of this package also has support for IPX.
This software consists of two parts:
that system. The supported systems, and the corresponding README
files, are:
- Digital Unix (OSF/1) README.osf
Linux README.linux
+ Solaris 2 README.sol2
+ Digital Unix (OSF/1) README.osf
NetBSD, FreeBSD README.bsd
NeXTStep README.next
- Solaris 2 README.sol2
SunOS 4.x README.sunos4
System V Release 4 README.svr4
Ultrix 4.x README.ultrix
+In fact, only the Linux and Solaris 2 ports have been tested in this
+release. Code for the other systems is still included; if you use it,
+let me know how it works. If I don't hear from anyone it will
+probably get dropped in a subsequent release. AIX 4 is no longer
+supported, since I don't have a maintainer for the AIX 4 port. If you
+want to volunteer, contact me.
+
In each case you start by running the ./configure script. This works
out which operating system you are using and creates symbolic links to
the appropriate makefiles. You then run `make' to compile the
be recompiled and the system rebooted. See the README.* files for
details.
-(Unfortunately, AIX 4 is no longer supported, since I don't have a
-maintainer for the AIX 4 port. If you want to volunteer, contact me.)
+N.B. Since 2.3.0, leaving the permitted IP addresses column of the
+pap-secrets or chap-secrets file empty means that no addresses are
+permitted. You need to put a "*" in that column to allow the peer to
+use any IP address. (This only applies where the peer is
+authenticating itself to you, of course.)
+
+
+What's new in ppp-2.3.9.
+************************
+
+* Support for the new generic PPP layer under development for the
+ Linux kernel.
+
+* You can now place extra options to apply to specific users at the
+ end of the line with their password in the pap-secrets or
+ chap-secrets file, separated from the IP address(es) with a "--"
+ separator. These options are parsed after the peer is authenticated
+ but before network protocol (IPCP, IPXCP) or CCP negotiation
+ commences.
+
+* Pppd will apply the holdoff period if the link was terminated by the
+ peer. It doesn't apply it if the link was terminated because the
+ local pppd thought it was idle.
+
+* Synchronous support for Solaris has been added, thanks to John
+ Morrison, and for FreeBSD, thanks to Paul Fulghum.
+
+* IPV6 support has been merged in, from Tommi Komulainen. At the
+ moment it only supports Linux and it is not tested by me.
+
+* The `nodefaultip' option can be used in demand mode to say that pppd
+ should not suggest its local IP address to the peer.
+
+* The `init' option has been added; this causes pppd to run a script
+ to initialize the serial device (e.g. by sending an init string to
+ the modem). Unlike the connect option, this can be used in a
+ dial-in situation. (Thanks to Tobias Ringstrom.)
+
+* There is a new `logfile' option to send log messages to a file as
+ well as syslog.
+
+* There is a new, privileged `linkname' option which sets a logical
+ name for the link. Pppd will create a /var/run/ppp-<linkname>.pid
+ file containing its process ID.
+
+* There is a new `maxfail' option which specifies how many consecutive
+ failed connection attempts are permitted before pppd will exit. The
+ default value is 10, and 0 means infinity. :-)
+
+* Sundry bugs fixed.
+
+
+What was new in ppp-2.3.8.
+**************************
+
+* The exit status of pppd will now indicate whether the link was
+ successfully established, or if not, what error was encountered.
+
+* Pppd has two new options: fdlog <n> will send log messages to file
+ descriptor <n> instead of standard output, and nofdlog will stop log
+ messages from being sent to any file descriptor (they will still be
+ sent to syslog). Pppd now will not send log messages to a file
+ descriptor if the serial port is open on that file descriptor.
+
+* Pppd sets an environment variable called PPPLOGNAME for scripts that
+ it runs, indicating the login name of the user who invoked pppd.
+
+* Pppd sets environment variables CONNECT_TIME, BYTES_SENT and
+ BYTES_RCVD for the ip-down and auth-down scripts indicating the
+ statistics for the connection just terminated. (CONNECT_TIME is in
+ seconds.)
+
+* If the user has the serial device open on standard input and
+ specifies a symbolic link to the serial device on the command line,
+ pppd will detect this and behave correctly (i.e. not detach from its
+ controlling terminal). Furthermore, if the serial port is open for
+ reading and writing on standard input, pppd will assume that it is
+ locked by its invoker and not lock it itself.
+
+* Chat now has a feature where if a string to be sent begins with an
+ at sign (@), the rest of the string is taken as the name of a file
+ (regular file or named pipe), and the actual string to send is taken
+ from that file.
+
+* Support for FreeBSD-2.2.8 and 3.0 has been added, thanks to Paul
+ Fulghum.
+
+* The Tru64 (aka Digital Unix aka OSF/1) port has been updated.
+
+* The system panics on Solaris SMP systems related to PPP connections
+ being established and terminated should no longer occur.
+
+* Fixed quite a few bugs.
+
+
+What was new in ppp-2.3.7.
+**************************
+
+* Pppd can now automatically allocate itself a pseudo-tty to use as
+ the serial device. This has made three new options possible:
+
+ - `pty script' will run `script' with its standard input and output
+ connected to the master side of the pty. For example:
+ pppd pty 'ssh -t server.my.net pppd'
+ is a basic command for setting up a PPP link (tunnel) over ssh.
+ (In practice you may need to specify other options such as IP
+ addresses, etc.)
+
+ - `notty' tells pppd to communicate over its standard input and
+ output, which do not have to be a terminal device.
+
+ - `record filename' tells pppd to record all of the characters sent
+ and received over the serial device to a file called `filename'.
+ The data is recorded in a tagged format with timestamps, which can
+ be printed in a readable form with the pppdump program, which is
+ included in this distribution.
+
+* Pppd now logs the connect time and number of bytes sent and received
+ (at the level of the serial device) when the connection is
+ terminated.
+
+* If you use the updetach or nodetach option, pppd will print its
+ messages to standard output as well as logging them with syslog
+ (provided of course pppd isn't using its standard input or output as
+ its serial device).
+
+* There is a new `privgroup groupname' option (a privileged option).
+ If the user running pppd is in group `groupname', s/he can use
+ privileged options without restriction.
+
+* There is a new `receive-all' option, which causes pppd to accept all
+ control characters, even the ones that the peer should be escaping
+ (i.e. the receive asyncmap is 0). This is useful with some buggy
+ peers.
+
+* The default asyncmap is now 0.
+
+* There is a new `sync' option, currently only implemented under
+ Linux, which allows pppd to run on synchronous HDLC devices.
+
+* If a value for the device name or for the connect, disconnect,
+ welcome or pty option is given in a privileged option file
+ (i.e. /etc/ppp/options or a file loaded with the `call' option), it
+ cannot be overridden by a non-privileged user.
+
+* Many bugs have been fixed, notably:
+ - signals are not blocked unnecessarily, as they were in 2.3.6.
+ - the usepeerdns option should work now.
+ - the SPEED environment variable for scripts is set correctly.
+ - the /etc/ppp/auth-down script is not run until auth-up completes.
+ - the device is opened as root if it is the device on standard
+ input.
+ - pppd doesn't die with the ioctl(PPPIOCSASYNCMAP) error under linux
+ if a hangup occurs at the wrong time.
+
+* Some error messages have been changed to be clearer (I hope :-)
+
+
+What was new in ppp-2.3.6.
+**************************
+
+* Pppd now opens the tty device as the user (rather than as root) if
+ the device name was given by the user, i.e. on the command line or
+ in the ~/.ppprc file. If the device name was given in
+ /etc/ppp/options or in a file loaded with the `call' option, the
+ device is opened as root.
+* The default behaviour of pppd is now to let a peer which has not
+ authenticated itself (e.g. your ISP) use any IP address to which the
+ system does not already have a route. (This is currently only
+ supported under Linux, Solaris and Digital Unix; on the other
+ systems, the peer must now authenticate itself unless the noauth
+ option is used.)
-What's new in ppp-2.3.
-**********************
+* Added new option `usepeerdns', thanks to Nick Walker
+ <nickwalker@email.com>. If the peer supplies DNS addresses, these
+ will be written to /etc/ppp/resolv.conf. The ip-up script can then
+ be used to add these addresses to /etc/resolv.conf if desired (see
+ the ip-up.local.add and ip-down.local.add files in the scripts
+ directory).
+
+* The Solaris ppp driver should now work correctly on SMP systems.
+
+* Minor corrections so that the code can compile under Solaris 7,
+ and under Linux with glibc-2.1.
+
+* The Linux kernel driver has been restructured for improved
+ performance.
+
+* Pppd now won't start the ip-down script until the ip-up script has
+ finished.
+
+
+What was new in ppp-2.3.5.
+**************************
+
+* Minor corrections to the Digital UNIX and NetBSD ports.
+
+* A workaround to avoid tickling a bug in the `se' serial port driver
+on Sun PCI Ultra machines running Solaris.
+
+* Fixed a bug in the negotiation of the Microsoft WINS server address
+option.
+
+* Fixed a bug in the Linux port where it would fail for kernel
+versions above 2.1.99.
+
+
+What was new in ppp-2.3.4.
+**************************
+
+* The NeXT port has been updated, thanks to Steve Perkins.
+
+* ppp-2.3.4 compiles and works under Solaris 2.6, using either gcc or
+cc.
+
+* With the Solaris, SVR4 and SunOS ports, you can control the choice
+of C compiler, C compiler options, and installation directories by
+editing the svr4/Makedefs or sunos4/Makedefs file.
+
+* Until now, we have been using the number 24 to identify Deflate
+compression in the CCP negotiations, which was the number in the draft
+RFC describing Deflate. The number actually assigned to Deflate is
+26. The code has been changed to use 26, but to allow the use of 24
+for now for backwards compatibility. (This can be disabled with the
+`nodeflatedraft' option to pppd.)
+
+* Fixed some bugs in the linux driver and deflate compressor which
+were causing compression problems, including corrupting long
+incompressible packets sometimes.
+
+* Fixes to the PAM and shadow password support in pppd, from Al
+Longyear and others.
+
+* Pppd now sets some environment variables for scripts it invokes
+(ip-up/down, auth-ip/down), giving information about the connection.
+The variables it sets are PEERNAME, IPLOCAL, IPREMOTE, UID, DEVICE,
+SPEED, and IFNAME.
+
+* Pppd now has an `updetach' option, which will cause it to detach
+from its controlling terminal once the link has come up (i.e. once it
+is available for IP traffic).
+
+
+What was new in ppp-2.3.3.
+**************************
+
+* Fixed compilation problems under SunOS.
+
+* Fixed a bug introduced into chat in 2.3.2, and compilation problems
+introduced into the MS-CHAP implementation in 2.3.2.
+
+* The linux kernel driver has been updated for recent 2.1-series
+kernel changes, and it now will ask kerneld to load compression
+modules when required, if the kernel is configured to support kerneld.
+
+* Pppd should now compile correctly under linux on systems with glibc.
+
+
+What was new in ppp-2.3.2.
+**************************
+
+* In 2.3.1, I made a change which was intended to make pppd able to
+detect loss of CD during or immediately after the connection script
+runs. Unfortunately, this had the side-effect that the connection
+script wouldn't work at all on some systems. This change has been
+reversed.
+
+* Fix compilation problems in the Linux kernel driver.
+
+
+What was new in ppp-2.3.1.
+**************************
+
+* Enhancements to chat, thanks to Francis Demierre. Chat can now
+accept comments in the chat script file, and has new SAY, HANGUP,
+CLR_ABORT and CLR_REPORT keywords.
+
+* Fixed a bug which causes 2.3.0 to crash Solaris systems.
+
+* Bug-fixes and restructuring of the Linux kernel driver.
+
+* The holdoff behaviour of pppd has been changed slightly: now, if
+the link comes up for IP (or other network protocol) traffic, we
+consider that the link has been successfully established, and don't
+enforce the holdoff period after the link goes down.
+
+* Pppd should now correctly wait for CD (carrier detect) from the
+modem, even when the serial port initially had CLOCAL set, and it
+should also detect loss of CD during or immediately after the
+connection script runs.
+
+* Under linux, pppd will work with older 2.2.0* version kernel
+drivers, although demand-dialling is not supported with them.
+
+* Minor bugfixes for pppd.
+
+
+What was new in ppp-2.3.
+************************
* Demand-dialling. Pppd now has a mode where it will establish the
network interface immediately when it starts, but not actually bring
-the link up until it sees some data to be sent.
+the link up until it sees some data to be sent. Look for the demand
+option description in the pppd man page. Demand-dialling is not
+supported under Ultrix or NeXTStep.
* Idle timeout. Pppd will optionally terminate the link if no data
packets are sent or received within a certain time interval.
* Pppd now runs the /etc/ppp/auth-up script, if it exists, when the
peer successfully authenticates itself, and /etc/ppp/auth-down when
-the connection is subsequently terminated.
+the connection is subsequently terminated. This can be useful for
+accounting purposes.
* A new packet compression scheme, Deflate, has been implemented.
This uses the same compression method as `gzip'. This method is free
of patent or copyright restrictions, and it achieves better
compression than BSD-Compress. It does consume more CPU cycles for
-compression than BSD-Compress, but this won't be a problem for links
-running at 100kbit/s or less.
+compression than BSD-Compress, but this shouldn't be a problem for
+links running at 100kbit/s or less.
-* There is now no code in this distribution which is covered by Brad
+* There is no code in this distribution which is covered by Brad
Clements' restrictive copyright notice. The STREAMS modules for SunOS
and OSF/1 have been rewritten, based on the Solaris 2 modules, which
were written from scratch without any Clements code.
became noip, +chap became require-chap, etc. The old options are
still accepted for compatibility but may be removed in future.
+* Pppd now has some options (such as the new `noauth' option) which
+can only be specified if it is being run by root, or in an
+"privileged" options file: /etc/ppp/options or an options file in the
+/etc/ppp/peers directory. There is a new "call" option to read
+options from a file in /etc/ppp/peers, making it possible for non-root
+users to make unauthenticated connections, but only to certain trusted
+peers. My intention is to make the `auth' option the default in a
+future release.
+
* Several minor new features have been added to pppd, including the
maxconnect and welcome options. Pppd will now terminate the
connection when there are no network control protocols running. The
Thanks to those who reported bugs in ppp-2.2.
+Compression methods.
+********************
+
+This package supports two packet compression methods: Deflate and
+BSD-Compress. Other compression methods which are in common use
+include Predictor, LZS, and MPPC. These methods are not supported for
+two reasons - they are patent-encumbered, and they cause some packets
+to expand slightly, which pppd doesn't currently allow for.
+BSD-Compress is also patent-encumbered (its inclusion in this package
+can be considered a historical anomaly :-) but it doesn't ever expand
+packets. Neither does Deflate, which uses the same algorithm as gzip.
+
+
Patents.
********
Contacts.
*********
-Bugs in the the SunOS, Solaris 2, NetBSD and Ultrix ports, and bugs in
-pppd, chat or pppstats should be reported me at:
-
- email: Paul.Mackerras@cs.anu.edu.au
-
- mail: Dr Paul Mackerras
- Dept. of Computer Science
- Australian National University
- Canberra ACT 0200
- AUSTRALIA
-
- fax: +61-6-249-0010
-
-Bugs in other ports should be reported to the maintainer for that port
-(see the appropriate README.* file) or to me.
+The comp.protocols.ppp newsgroup is a useful place to get help if you
+have trouble getting your ppp connections to work. Please do not send
+me questions of the form "please help me get connected to my ISP" -
+I'm sorry, but I simply do not have the time to answer all the
+questions like this that I get.
-Thanks to:
+If you find bugs in this package, please report them to the maintainer
+for the port for the operating system you are using:
- Brad Parker (brad@fcr.com)
- Greg Christy (gmc@quotron.com)
- Drew D. Perkins (ddp@andrew.cmu.edu)
- Rick Adams (rick@seismo.ARPA)
- Chris Torek (chris@mimsy.umd.edu, umcp-cs!chris).
+Linux Paul Mackerras <Paul.Mackerras@cs.anu.edu.au>
+Solaris 2 Adi Masputra <adi.masputra@sun.com>
+SunOS 4.x Adi Masputra <adi.masputra@sun.com>
+Digital Unix (OSF/1) Sowmini Varadhan <varadhan@zk3.dec.com>
+NetBSD Matthew Green <mrg@eterna.com.au>
+FreeBSD Peter Wemm <peter@haywire.DIALix.COM>
+NeXTStep Steve Perkins <perkins@cps.msu.edu>
+System V Release 4 Matthias Apitz <Matthias.Apitz@SOFTCON.de>
+Ultrix 4.x Paul Mackerras (for want of anybody better :-)
Copyrights:
***********
-All of the code can be freely used and redistributed.
+All of the code can be freely used and redistributed. The individual
+source files each have their own copyright and permission notice; some
+have a BSD-style notice and some are under the GPL.
Distribution:
ftp://cs.anu.edu.au/pub/software/ppp/
-($Id: README,v 1.6 1996/07/03 06:47:29 paulus Exp $)
+($Id: README,v 1.20 1999/08/19 19:26:03 masputra Exp $)
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