1Copyright (c) 2001 Brian Somers <brian@Awfulhak.org> 2 based on work by Eivind Eklund <perhaps@yes.no>, 3All rights reserved. 4 5Redistribution and use in source and binary forms, with or without 6modification, are permitted provided that the following conditions 7are met: 81. Redistributions of source code must retain the above copyright 9 notice, this list of conditions and the following disclaimer. 102. Redistributions in binary form must reproduce the above copyright 11 notice, this list of conditions and the following disclaimer in the 12 documentation and/or other materials provided with the distribution. 13 14THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24SUCH DAMAGE. 25 26$FreeBSD: src/usr.sbin/ppp/README.changes,v 1.16.2.6 2001/06/04 14:46:12 brian Exp $ 27$DragonFly: src/usr.sbin/ppp/README.changes,v 1.2 2003/06/17 04:30:00 dillon Exp $ 28 29This file summarises changes made to ppp that effect 30its configuration. 31 32It does not describe new features, rather it attempts 33to answer any `this used to work, why doesn't it now?' 34questions. 35 36o The `set debug' command was replaced with `set log'. 37o The `set log LCP' command was split into LCP, IPCP and CCP logs. 38o Syslogd is used for logging. /etc/syslog.conf must be updated. 39o LQR is disabled by default. 40o Openmode is active by default. 41o Users must be a member of group `network' for ppp access. Furthermore, 42 they must be `allow'ed to run ppp via the `allow' command in the 43 configuration file. 44 For a brief period, ppp could only be run as root. 45o No diagnostic socket is created by default. The `set server' command 46 must be used. 47o The diagnostic socket password must be specified *only* on the `set 48 server' command line. 49o When `set server' is used to re-select a diagnostic port, all existing 50 diagnostic connections are dropped. 51o pppd-deflate is now called deflate24. 52o Filter IPs of 0.0.0.0 have a default width of 0, not 32. 53o Errors in `add' and `delete' are logged as warnings rather than being 54 written to the TCP/IP log. 55o Any number of diagnostic prompts are allowed, and they are allowed in 56 interactive mode. 57o The default `device' is cuaa1, then cuaa0 58o A password of "*" in ppp.secret causes a passwd database lookup in 59 pap mode. 60o The value of the CONNECT environment variable is logged in the 61 utmp host field in -direct mode. 62o Out-of-sequence FSM packets (IPCP/LCP/CCP) are dropped by default. 63o Reconnect values are used after an LQR timeout. 64o ^C works on the parent in -background mode. 65o The dial/call/open command works asynchronously. As a result, prompts 66 do not lose control while dialing. 67o The `display' command has been removed. All information is available 68 with the appropriate `show' command. 69o Msext does not need to be enabled/disabled. Setting the NBNS (set nbns) 70 will auto enable it. The DNS side may be enabled/disabled, and if 71 enabled without a `set dns' (was `set ns') will use values from 72 /etc/resolv.conf. 73o Filters are now called `allow', `dial', `in' and `out'. `set 74 ifilter ...' becomes `set filter in ...' etc. 75o Authname and Authkey may only be `set' in phase DEAD. 76o Set encrypt is no longer necessary. Ppp will respond to M$CHAP 77 servers correctly if it's built with DES. 78o Throughput statistics are enabled by default. 79o `Set stopped' only has two parameters. It's no longer possible to 80 have an IPCP stopped timer. 81o `Set timeout' only has one or two parameters. Use `set lqrperiod' and 82 `set {lcp,ccp,ipcp,chap,pap}retry' for the other timers. These timeout 83 values can be seen using the relevant show commands. 84o `set loopback' is now `enable/disable loopback'. 85o `show auto', `show loopback' and `show mtu' are all part of `show bundle'. 86o `show mru' is part of `show lcp' 87o `show msext' and `show vj' are part of `show ipcp' 88o `show reconnect' and `show redial' are part of `show link' 89o A signal 15 (TERM) will now shut down the link gracefully. 90o A signal 2 (HUP) will drop all links immediately. 91o Signal 30 (USR1) is now ignored. 92o Add & delete commands are not necessary in ppp.linkup if they are 93 `sticky routes' (ie, contain MYADDR or HISADDR). 94o LINK and CARRIER logging are no longer available. 95o Timer based DEBUG messages are now logged in the new TIMER log. 96o Ppp can use tun devices > tun255. 97o Protocol-compressed packets are accepted even if they were denied 98 at LCP negotiation time. 99o Passwords aren't logged when logging the ``set server'' line. 100o Command line options only need enough characters to uniquely identify 101 them. -a == -auto, -dd == -ddial etc. -interactive is also allowed. 102o If you don't like seeing additional interface aliases when running in 103 -auto -alias mode, add ``iface clear'' to your ppp.linkdown file - 104 check the sample file. 105o Ppp waits for 1 second before checking whether the device supports 106 carrier. This is controllable with ``set cd''. 107o Random dial timeouts are now between 1 and 30 seconds inclusive rather 108 than between 0 and 29. 109o Ppp now accepts M$CHAP (as well as normal CHAP) by default. If this 110 is not required, you must ``deny chap05 chap80''. 111o The ``set device'' command now expects each device to be specified as an 112 argument rather than concatentating all arguments and splitting based 113 on commas and spaces. 114o The ``show modem'' command is deprecated and has been changed to 115 ``show physical''. 116o The words ``host'' and ``port'' are no longer accepted by the ``set filter'' 117 command. Removing them should yield the same results as before. 118o The ``set weight'' command has been deprecated. The ``set bandwidth'' 119 command should now be used instead. 120o The ``set autoload'' command syntax and implementation have changed as the 121 old implementation was mis-designed and dysfunctional. 122o Ppp now waits either the full ``set cd'' time or until carrier is detected 123 before running the login script (whichever comes first). 124o The -alias flag has been deprecated. The -nat flag should be used instead. 125o Unbalanced quotes in commands are now warned about and the entire command 126 is ignored. 127o It is now only necessary to escape the `-' character in chat scripts twice. 128 See the example files for details. 129o Environment variables and ~ are expanded on in commands 130o ``nat pptp'' is no longer necessary as this is now done transparently 131o The ``!'' at the start of chat scripts and authkey can be made literal 132 (rather than meaning execute) by doubling it to ``!!''. 133o MP autoload throughput measurements are now based on the maximum of input 134 and output averages rather than on the total. 135o When only one link is open in MP mode, MP link level compression is not 136 open and the peer MRU >= the peer MRRU, ppp sends outbound traffic as 137 PROTO_IP traffic rather than PROTO_MP. 138o MSCHAPv2 is now accepted by default. If you don't wish to negotiate 139 this, you must explicitly deny it. 140o MPPE is enabled and accepted by default (although deflate and predictor1 141 are preferred. 142