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 and Solaris ports of this package have optional support for
-IPV6; the Linux port of this package also has support for IPX.
+supports IP and IPV6 and the protocols layered above them, such as TCP
+and UDP. The Linux port of this package also has support for IPX.
-This software consists of two parts:
+This PPP implementation consists of two parts:
- Kernel code, which establishes a network interface and passes
packets between the serial port, the kernel networking code and the
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 kernel code for Linux is no longer distributed with this package,
+since the relevant kernel code is in the official Linux kernel source
+(and has been for many years) and is included in all reasonably modern
+Linux distributions. The Linux kernel code supports using PPP over
+things other than serial ports, such as PPP over Ethernet and PPP over
+ATM.
+
Installation.
*************
authenticating itself to you, of course.)
-What's new in ppp-2.4.3.
+What's new in ppp-2.4.7.
************************
+* Fixed a potential security issue in parsing option files (CVE-2014-3158).
+
+* There is a new "stop-bits" option, which takes an argument of 1 or 2,
+ indicating the number of stop bits to use for async serial ports.
+
+* Various bug fixes.
+
+
+What was new in ppp-2.4.6.
+**************************
+
+* Man page updates.
+
+* Several bug fixes.
+
+* Options files can now set and unset environment variables for
+ scripts.
+
+* The timeout for chat scripts can now be taken from an environment
+ variable.
+
+* There is a new option, master_detach, which allows pppd to detach
+ from the controlling terminal when it is the multilink bundle master
+ but its own link has terminated, even if the nodetach option has
+ been given.
+
+
+What was new in ppp-2.4.5.
+**************************
+
+* Under Linux, pppd can now operate in a mode where it doesn't request
+ the peer's IP address, as some peers refuse to supply an IP address.
+ Since Linux supports device routes as well as gateway routes, it's
+ possible to have no remote IP address assigned to the ppp interface
+ and still route traffic over it.
+
+* Pppd now works better with 3G modems that do strange things such as
+ sending IPCP Configure-Naks with the same values over and over again.
+
+* The PPP over L2TP plugin is included, which works with the pppol2tp
+ PPP channel code in the Linux kernel. This allows pppd to be used
+ to set up tunnels using the Layer 2 Tunneling Protocol.
+
+* A new 'enable-session' option has been added, which enables session
+ accounting via PAM or wtwp/wtmpx, as appropriate. See the pppd man
+ page for details.
+
+* Several bugs have been fixed.
+
+
+What was new in ppp-2.4.4.
+**************************
+
+* Pppd will now run /etc/ppp/ip-pre-up, if it exists, after creating
+ the ppp interface and configuring its IP addresses but before
+ bringing it up. This can be used, for example, for adding firewall
+ rules for the interface.
+
+* Lots of bugs fixed, particularly in the area of demand-dialled and
+ persistent connections.
+
+* The rp-pppoe plugin now accepts any interface name (that isn't an
+ existing pppd option name) without putting "nic-" on the front of
+ it, not just eth*, nas*, tap* and br*.
+
+
+What was new in ppp-2.4.3.
+**************************
+
* 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.
* There is a new pppoatm plugin, by various authors, sent in by David
Woodhouse.
+* The multilink code has been substantially reworked. The first pppd
+ for a bundle still controls the ppp interface, but it doesn't exit
+ until all the links in the bundle have terminated. If the first
+ pppd is signalled to exit, it signals all the other pppds
+ controlling links in the bundle.
+
+* The TDB code has been updated to the latest version. This should
+ eliminate the problem that some people have seen where the database
+ file (/var/run/pppd.tdb) keeps on growing. Unfortunately, however,
+ the new code uses an incompatible database format. For this reason,
+ pppd now uses /var/run/pppd2.tdb as the database filename.
+
What was new in ppp-2.4.2.
**************************
ever expand packets.
-Patents.
-********
-
-The BSD-Compress algorithm used for packet compression is the same as
-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.
*********
ftp://ftp.samba.org/pub/ppp/
-($Id: README,v 1.33 2004/11/06 11:36:54 paulus Exp $)
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