- 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 and Solaris, and as a line discipline under Linux and FreeBSD.
+Solaris, and as a line discipline under Linux.
- The PPP daemon (pppd), which negotiates with the peer to establish
the link and sets up the ppp network interface. Pppd includes support
for authentication, so you can control which other systems may make a
PPP connection and what IP addresses they may use.
-The primary platforms supported by this package are Linux and Solaris.
-Code for SunOS 4.x is included here but is largely untested. I have
-code for NeXTStep, FreeBSD, SVR4, Tru64 (Digital Unix), AIX and Ultrix
-but no active maintainers for these platforms. Code for all of these
-except AIX is included in the ppp-2.3.11 release.
+The platforms supported by this package are Linux and Solaris. I have
+code for NeXTStep, FreeBSD, SunOS 4.x, SVR4, Tru64 (Digital Unix), AIX
+and Ultrix but no active maintainers for these platforms. Code for
+all of these except AIX is included in the ppp-2.3.11 release.
Installation.
Linux README.linux
Solaris README.sol2
- SunOS 4.x README.sunos4
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
-user-level code, and (as root) `make install' to install the
-user-level programs pppd, chat and pppstats.
+out which operating system you are using and creates the appropriate
+makefiles. You then run `make' to compile the user-level code, and
+(as root) `make install' to install the user-level programs pppd, chat
+and pppstats.
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
authenticating itself to you, of course.)
-What's new in ppp-2.4.2.
+What's new in ppp-2.4.3.
************************
-* Support for MS-CHAP v2 authentication, plus support for
- authenticating the peer with MS-CHAP v1 or v2.
+* The configure script now accepts --prefix and --sysconfdir options.
+ These default to /usr/local and /etc. If you want pppd put in
+ /usr/sbin as before, use ./configure --prefix=/usr.
-* MPPE
+* Doing `make install' no longer puts example configuration files in
+ /etc/ppp. Use `make install-etcppp' if you want that.
-* CBCP updates
+* The code has been updated to work with version 0.8.3 of libpcap.
+ Unfortunately the libpcap maintainers removed support for the
+ "inbound" and "outbound" keywords on PPP links, meaning that if you
+ link pppd with libpcap-0.8.3, you can't use those keywords in the
+ active-filter and pass-filter expressions. The support has been
+ reinstated in the CVS version and should be in future libpcap
+ releases. If you need the in/outbound keywords, use a later release
+ than 0.8.3, or get the CVS version from http://www.tcpdump.org.
-* EAP
+* There is a new option, child-timeout, which sets the length of time
+ that pppd will wait for child processes (such as the command
+ specified with the pty option) to exit before exiting itself. It
+ defaults to 5 seconds. After the timeout, pppd will send a SIGTERM
+ to any remaining child processes and exit. A value of 0 means no
+ timeout.
-* PPPOE
+* Various bugs have been fixed, including some CBCP packet parsing
+ bugs that could lead to the peer being able to crash pppd if CBCP
+ support is enabled.
-* Password-via-pipe plugin
+* Various fixes and enhancements to the radius and rp-pppoe plugins
+ have been added.
-* Solaris updates
-* ECP
+What was new in ppp-2.4.2.
+**************************
+
+* The CHAP code has been rewritten. Pppd now has support for MS-CHAP
+ V1 and V2 authentication, both as server and client. The new CHAP
+ code is cleaner than the old code and avoids some copyright problems
+ that existed in the old code.
+
+* MPPE (Microsoft Point-to-Point Encryption) support has been added,
+ although the current implementation shouldn't be considered
+ completely secure. (There is no assurance that the current code
+ won't ever transmit an unencrypted packet.)
-* Radius plugin code included
+* James Carlson's implementation of the Extensible Authentication
+ Protocol (EAP) has been added.
-* Extra hooks for plugins
+* Support for the Encryption Control Protocol (ECP) has been added.
-* maxoctets option
+* Some new plug-ins have been included:
+ - A plug-in for kernel-mode PPPoE (PPP over Ethernet)
+ - A plug-in for supplying the PAP password over a pipe from another
+ process
+ - A plug-in for authenticating using a Radius server.
-* ipcp-no-addresses and ipcp-no-address options
+* Updates and bug-fixes for the Solaris port.
-* remotenumber and allow-number options
+* The CBCP (Call Back Control Protocol) code has been updated. There
+ are new options `remotenumber' and `allow-number'.
-* lock filename changes?
+* Extra hooks for plugins to use have been added.
+
+* There is now a `maxoctets' option, which causes pppd to terminate
+ the link once the number of bytes passed on the link exceeds a given
+ value.
+
+* There are now options to control whether pppd can use the IPCP
+ IP-Address and IP-Addresses options: `ipcp-no-address' and
+ `ipcp-no-addresses'.
* Fixed several bugs, including potential buffer overflows in chat.
* Multilink: this package now allows you to combine multiple serial
links into one logical link or `bundle', for increased bandwidth and
reduced latency. This is currently only supported under the
- Linux-2.3.99pre5 or later kernels.
+ 2.4.x and later Linux kernels.
* All the pppd processes running on a system now write information
into a common database. I used the `tdb' code from samba for this.
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.
+BSD-Compress and Deflate (which uses the same algorithm as gzip) don't
+ever expand packets.
Patents.
********
The BSD-Compress algorithm used for packet compression is the same as
-that used in the Unix "compress" command. It is apparently covered by
-U.S. patents 4,814,746 (owned by IBM) and 4,558,302 (owned by Unisys),
-and corresponding patents in various other countries (but not
-Australia). If this is of concern, you can build the package without
-including BSD-Compress. To do this, edit net/ppp-comp.h to change the
-definition of DO_BSD_COMPRESS to 0. The bsd-comp.c files are then no
-longer needed, so the references to bsd-comp.o may optionally be
-removed from the Makefiles.
+that used in the Unix "compress" command. It was apparently covered
+by U.S. patents 4,814,746 (owned by IBM) and 4,558,302 (owned by
+Unisys), and corresponding patents in various other countries (but not
+Australia). I believe the Unisys patent expired in the US on 20 June
+2003, and that the IBM patent was older.
+
+If these patents are of concern in your situation, you can build the
+package without including BSD-Compress. To do this, edit
+net/ppp-comp.h to change the definition of DO_BSD_COMPRESS to 0. The
+bsd-comp.c files are then no longer needed, so the references to
+bsd-comp.o may optionally be removed from the Makefiles.
Contacts.
If you find bugs in this package, please report them to the maintainer
for the port for the operating system you are using:
-Linux Paul Mackerras <paulus@linuxcare.com>
-Solaris James Carlson <james.d.carlson@east.sun.com>
-SunOS 4.x Adi Masputra <adi.masputra@sun.com>
+Linux Paul Mackerras <paulus@samba.org>
+Solaris James Carlson <carlson@workingcode.com>
Copyrights:
***********
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.
+source files each have their own copyright and permission notice.
+Pppd, pppstats and pppdump are under BSD-style notices. Some of the
+pppd plugins are GPL'd. Chat is public domain.
Distribution:
ftp://ftp.samba.org/pub/ppp/
-($Id: README,v 1.28 2003/05/01 12:43:16 paulus Exp $)
+($Id: README,v 1.31 2004/11/04 11:58:14 paulus Exp $)
projects / ppp.git / blobdiff