$FreeBSD$ This file summarises changes made to ppp that effect its configuration. It does not describe new features, rather it attempts to answer any `this used to work, why doesn't it now?' questions. o The `set debug' command was replaced with `set log'. o The `set log LCP' command was split into LCP, IPCP and CCP logs. o Syslogd is used for logging. /etc/syslog.conf must be updated. o LQR is disabled by default. o Openmode is active by default. o Users must be a member of group `network' for ppp access. Furthermore, they must be `allow'ed to run ppp via the `allow' command in the configuration file. For a brief period, ppp could only be run as root. o No diagnostic socket is created by default. The `set server' command must be used. o The diagnostic socket password must be specified *only* on the `set server' command line. o When `set server' is used to re-select a diagnostic port, all existing diagnostic connections are dropped. o pppd-deflate is now called deflate24. o Filter IPs of 0.0.0.0 have a default width of 0, not 32. o Errors in `add' and `delete' are logged as warnings rather than being written to the TCP/IP log. o Any number of diagnostic prompts are allowed, and they are allowed in interactive mode. o The default `device' is cuaa1, then cuaa0 o A password of "*" in ppp.secret causes a passwd database lookup in pap mode. o The value of the CONNECT environment variable is logged in the utmp host field in -direct mode. o Out-of-sequence FSM packets (IPCP/LCP/CCP) are dropped by default. o Reconnect values are used after an LQR timeout. o ^C works on the parent in -background mode. o The dial/call/open command works asynchronously. As a result, prompts do not lose control while dialing. o The `display' command has been removed. All information is available with the appropriate `show' command. o Msext does not need to be enabled/disabled. Setting the NBNS (set nbns) will auto enable it. The DNS side may be enabled/disabled, and if enabled without a `set dns' (was `set ns') will use values from /etc/resolv.conf. o Filters are now called `allow', `dial', `in' and `out'. `set ifilter ...' becomes `set filter in ...' etc. o Authname and Authkey may only be `set' in phase DEAD. o Set encrypt is no longer necessary. Ppp will respond to M$CHAP servers correctly if it's built with DES. o Throughput statistics are enabled by default. o `Set stopped' only has two parameters. It's no longer possible to have an IPCP stopped timer. o `Set timeout' only has one or two parameters. Use `set lqrperiod' and `set {lcp,ccp,ipcp,chap,pap}retry' for the other timers. These timeout values can be seen using the relevant show commands. o `set loopback' is now `enable/disable loopback'. o `show auto', `show loopback' and `show mtu' are all part of `show bundle'. o `show mru' is part of `show lcp' o `show msext' and `show vj' are part of `show ipcp' o `show reconnect' and `show redial' are part of `show link' o A signal 15 (TERM) will now shut down the link gracefully. o A signal 2 (HUP) will drop all links immediately. o Signal 30 (USR1) is now ignored. o Add & delete commands are not necessary in ppp.linkup if they are `sticky routes' (ie, contain MYADDR or HISADDR). o LINK and CARRIER logging are no longer available. o Timer based DEBUG messages are now logged in the new TIMER log. o Ppp can use tun devices > tun255. o Protocol-compressed packets are accepted even if they were denied at LCP negotiation time. o Passwords aren't logged when logging the ``set server'' line. o Command line options only need enough characters to uniquely identify them. -a == -auto, -dd == -ddial etc. -interactive is also allowed. o If you don't like seeing additional interface aliases when running in -auto -alias mode, add ``iface clear'' to your ppp.linkdown file - check the sample file. o Ppp waits for 1 second before checking whether the device supports carrier. This is controllable with ``set cd''. o Random dial timeouts are now between 1 and 30 seconds inclusive rather than between 0 and 29. o Ppp now accepts M$CHAP (as well as normal CHAP) by default. If this is not required, you must ``deny chap05 chap80''. o The ``set device'' command now expects each device to be specified as an argument rather than concatentating all arguments and splitting based on commas and spaces. o The ``show modem'' command is deprecated and has been changed to ``show physical''. o The words ``host'' and ``port'' are no longer accepted by the ``set filter'' command. Removing them should yield the same results as before. o The ``set weight'' command has been deprecated. The ``set bandwidth'' command should now be used instead. o The ``set autoload'' command syntax and implementation have changed as the old implementation was mis-designed and dysfunctional. o Ppp now waits either the full ``set cd'' time or until carrier is detected before running the login script (whichever comes first). o The -alias flag has been deprecated. The -nat flag should be used instead. o Unbalanced quotes in commands are now warned about and the entire command is ignored. o It is now only necessary to escape the `-' character in chat scripts twice. See the example files for details. o Environment variables and ~ are expanded on in commands o ``nat pptp'' is no longer necessary as this is now done transparently o The ``!'' at the start of chat scripts and authkey can be made literal (rather than meaning execute) by doubling it to ``!!''. o MP autoload throughput measurements are now based on the maximum of input and output averages rather than on the total. o When only one link is open in MP mode, MP link level compression is not open and the peer MRU >= the peer MRRU, ppp sends outbound traffic as PROTO_IP traffic rather than PROTO_MP. o MSCHAPv2 is now accepted by default. If you don't wish to negotiate this, you must explicitly deny it. o MPPE is enabled and accepted by default (although deflate and predictor1 are preferred.