-This is the README file for ppp-2.2, a package which implements the
+This is the README file for ppp-2.3, a package which implements the
Point-to-Point Protocol (PPP) to provide Internet connections over
serial lines.
Introduction.
*************
-The Point-to-Point Protocol (PPP) provides a standard way to transmit
-datagrams over a serial link, as well as a standard way for the
-machines at either end of the link (the `peers') to negotiate various
-optional characteristics of the link. Using PPP, a serial link can be
-used to transmit Internet Protocol (IP) datagrams, allowing TCP/IP
-connections between the peers. PPP is defined in several RFC (Request
-For Comments) documents, in particular RFCs 1661, 1662, 1332 and 1334.
-Other RFCs describe standard ways to transmit datagrams from other
-network protocols (e.g., DECnet, OSI, Appletalk), but this package
-only supports IP.
+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 has support for IPX.
This software consists of two parts:
- Kernel code, which establishes a network interface and passes
packets between the serial port, the kernel networking code and the
PPP daemon (pppd). This code is implemented using STREAMS modules on
-SunOS 4.x, AIX 4.1 and OSF/1, and as a line discipline under Ultrix,
-NextStep, NetBSD, FreeBSD, and Linux.
+SunOS 4.x, Solaris 2.x, System V Release 4, and OSF/1, and as a
+line discipline under Ultrix, NextStep, NetBSD, FreeBSD, and Linux.
- The PPP daemon (pppd), which negotiates with the peer to establish
the link and sets up the ppp network interface. Pppd includes support
that system. The supported systems, and the corresponding README
files, are:
- SunOS 4.x README.sun
- NetBSD, FreeBSD README.bsd
- Ultrix 4.x README.ultrix
Linux README.linux
- OSF/1 README.osf
- AIX 4.x README.aix4
+ Solaris 2 README.sol2
+ Digital Unix (OSF/1) README.osf
+ NetBSD, FreeBSD README.bsd
NeXTStep README.next
+ 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
be recompiled and the system rebooted. See the README.* files for
details.
+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-2.3.7.
+************************
+
+* 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.)
+
+* 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 is new in ppp-2.2.
-***********************
-* More systems are now supported:
+What was new in ppp-2.3.4.
+**************************
- AIX 4, thanks to Charlie Wick (cwick@quaver.urbana.mcd.mot.com)
- OSF/1 on DEC Alpha, thanks to Steve Tate (srt@zaphod.csci.unt.edu)
- NextStep 3.2 and 3.3, thanks to Philip-Andrew Prindeville
- (philipp@res.enst.fr) and Steve Perkins (perkins@cps.msu.edu)
+* The NeXT port has been updated, thanks to Steve Perkins.
-in addition to NetBSD 1.0, SunOS 4.x, Ultrix 4.x, FreeBSD 2.0, and
-Linux.
+* ppp-2.3.4 compiles and works under Solaris 2.6, using either gcc or
+cc.
-* Packet compression has been implemented. This version implements
-CCP (Compression Control Protocol) and the BSD-Compress compression
-scheme according to the current draft RFCs. This means that incoming
-and outgoing packets can be compressed with the LZW scheme (same as
-the `compress' command) using a code size of up to 15 bits.
+* 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.
-* Some bug fixes to the LCP protocol code. In particular, pppd now
-correctly replies with a Configure-NAK (instead of a Configure-Reject)
-if the peer asks for CHAP and pppd is willing to do PAP but not CHAP.
+* 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.)
-* The ip-up and ip-down scripts are now run with the real user ID set
-to root, and with an empty environment. Clearing the environment
-fixes a security hole.
+* Fixed some bugs in the linux driver and deflate compressor which
+were causing compression problems, including corrupting long
+incompressible packets sometimes.
-* The kernel code on NetBSD, FreeBSD, NextStep and Ultrix has been
-restructured to make it easier to implement PPP over devices other
-than asynchronous tty ports (for example, synchronous serial ports).
+* Fixes to the PAM and shadow password support in pppd, from Al
+Longyear and others.
-* pppd now looks at the list of interfaces in the system to determine
-what the netmask should be. In most cases, this should eliminate the
-need to use the `netmask' option.
+* 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.
-* There is a new `papcrypt' option to pppd, which specifies that
-secrets in /etc/ppp/pap-secrets used for authenticating the peer are
-encrypted, so pppd always encrypts the peer's password before
-comparing it with the secret from /etc/ppp/pap-secrets. This gives
-better security.
+* 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. 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. 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 shouldn't be a problem for
+links running at 100kbit/s or less.
+
+* 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.
+
+* Pppstats has been reworked to clean up the output format somewhat.
+It also has a new -d option which displays data rate in kbyte/s for
+those columns which would normally display bytes.
+
+* Pppd options beginning with - or + have been renamed, e.g. -ip
+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
+allowed IP address(es) field in the secrets files can now specify
+subnets (with a notation like 123.45.67.89/24) and addresses which are
+not acceptable (put a ! on the front).
+
+* Numerous bugs have been fixed (no doubt some have been introduced :-)
+Thanks to those who reported bugs in ppp-2.2.
Patents.
Contacts.
*********
-Bugs in the the SunOS, NetBSD and Ultrix ports and bugs in pppd, chat
-or pppstats should be reported to:
-
- paulus@cs.anu.edu.au
- Paul Mackerras
- Dept. of Computer Science
- Australian National University
- Canberra ACT 0200
- AUSTRALIA
+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.
-Bugs in other ports should be reported to the maintainer for that port
-(see the appropriate README.* file) or to the above.
+If you find bugs in this package, please report them to the maintainer
+for the port for the operating system you are using:
-Thanks to:
-
- 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 Paul Mackerras <Paul.Mackerras@cs.anu.edu.au>
+SunOS 4.x Paul Mackerras (for want of anybody better :-)
+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:
+***********
-Most of the code can be freely used and redistributed. The STREAMS
-code for SunOS 4.x, OSF/1 and AIX 4 is under a more restrictive
-copyright:
+All of the code can be freely used and redistributed.
- This code is Copyright (C) 1989, 1990 By Brad K. Clements,
- All Rights Reserved.
- You may use this code for your personal use, to provide a non-profit
- service to others, or to use as a test platform for a commercial
- implementation.
+Distribution:
+*************
- You may NOT use this code in a commercial product, nor to provide a
- commercial service, nor may you sell this code without express
- written permission of the author.
+The primary site for releases of this software is:
- Otherwise, Enjoy!
+ ftp://cs.anu.edu.au/pub/software/ppp/
-This copyright applies to (parts of) the following files:
- sunos/ppp_async.c
- sunos/ppp_if.c
- osf1/ppp_async.c
- osf1/ppp_if.c
- aix4/ppp_async.c
- aix4/ppp_if.c
- net/ppp_str.h
- pppd/sys-str.c
- pppd/sys-osf.c
- pppd/sys-aix4.c
+($Id: README,v 1.16 1999/03/31 06:07:55 paulus Exp $)
projects / ppp.git / blobdiff