What's new in ppp-2.4.9.
************************

* Support for new EAP (Extensible Authentication Protocol) methods:
 - Support for EAP-TLS, from Jan Just Keijser and others
 - Support for EAP-MSCHAPv2, from Eivind Næss, Thomas Omerzu, Tijs
   Van Buggenhout and others

* New pppd options:
 - chap-timeout
 - chapms-strip-domain
 - replacedefaultroute
 - noreplacedefaultroute
 - ipv6cp-accept-remote
 - lcp-echo-adaptive
 - ip-up-script
 - ip-down-script
 - ca
 - capath
 - cert
 - key
 - crl-dir
 - crl
 - max-tls-version
 - need-peer-eap

* Fixes for CVE-2020-8597 and CVE-2015-3310.

* libpcap is now required when compiling on Linux (previously, if
 libpcap was not present, pppd would be compiled without packet
 filtering support).

* The rp-pppoe plugin has been renamed to pppoe, to distinguish it
 from the upstream rp-pppoe code.  Its options have changed names,
 but the old names are kept as aliases.

* The configure script now supports cross-compilation.

* Many bug fixes and cleanups.


What was new in ppp-2.4.8.
**************************

* New pppd options have been added:
 - ifname, to set the name for the PPP interface device
 - defaultroute-metric, to set the metric for the default route
 - defaultroute6, to add an IPv6 default route (with nodefaultroute6
   to prevent adding an IPv6 default route)
 - up_sdnotify, to have pppd notify systemd when the link is up.

* The rp-pppoe plugin has new options:
 - host-uniq, to set the Host-Uniq value to send
 - pppoe-padi-timeout, to set the timeout for discovery packets
 - pppoe-padi-attempts, to set the number of discovery attempts.

* Added the CLASS attribute in radius packets.

* Sundry bug fixes.

* Fixed warnings and issues found by static analysis.

* Added Submitting-patches.md.


What was 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.

* Doing `make install' no longer puts example configuration files in
 /etc/ppp.  Use `make install-etcppp' if you want that.

* 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.

* 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.

* 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.

* Various fixes and enhancements to the radius and rp-pppoe plugins
 have been added.

* There is a new winbind plugin, from Andrew Bartlet of the Samba
 team, which provides the ability to authenticate the peer against an
 NT domain controller using MS-CHAP or MS-CHAPV2.

* 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.
**************************

* 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.)

* James Carlson's implementation of the Extensible Authentication
 Protocol (EAP) has been added.

* Support for the Encryption Control Protocol (ECP) has been added.

* 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.

* Updates and bug-fixes for the Solaris port.

* The CBCP (Call Back Control Protocol) code has been updated.  There
 are new options `remotenumber' and `allow-number'.

* 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.


What was new in ppp-2.4.1.
**************************

* Pppd can now print out the set of options that are in effect.  The
 new `dump' option causes pppd to print out the option values after
 option parsing is complete.  The `dryrun' option causes pppd to
 print the options and then exit.

* The option parsing code has been fixed so that options in the
 per-tty options file are parsed correctly, and don't override values
 from the command line in most cases.

* The plugin option now looks in /usr/lib/pppd/<pppd-version> (for
 example, /usr/lib/pppd/2.4.1b1) for shared objects for plugins if
 there is no slash in the plugin name.

* When loading a plugin, pppd will now check the version of pppd for
 which the plugin was compiled, and refuse to load it if it is
 different to pppd's version string.  To enable this, the plugin
 source needs to #include "pppd.h" and have a line saying:
       char pppd_version[] = VERSION;

* There is a bug in zlib, discovered by James Carlson, which can cause
 kernel memory corruption if Deflate is used with the lowest setting,
 8.  As a workaround pppd will now insist on using at least 9.

* Pppd should compile on Solaris and SunOS again.

* Pppd should now set the MTU correctly on demand-dialled interfaces.


What was new in ppp-2.4.0.
**************************

* 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
 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.

* New hooks have been added.

For a list of the changes made during the 2.3 series releases of this
package, see the Changes-2.3 file.

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