1 Copyright (c) 2001 Brian Somers <brian (a] Awfulhak.org> 2 based on work by Eivind Eklund <perhaps (a] yes.no>, 3 All rights reserved. 4 5 Redistribution and use in source and binary forms, with or without 6 modification, are permitted provided that the following conditions 7 are met: 8 1. Redistributions of source code must retain the above copyright 9 notice, this list of conditions and the following disclaimer. 10 2. 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 14 THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 SUCH DAMAGE. 25 26 $FreeBSD: src/usr.sbin/ppp/README.changes,v 1.24.26.1 2010/12/21 17:10:29 kensmith Exp $ 27 28 This file summarises changes made to ppp that effect 29 its configuration. 30 31 It does not describe new features, rather it attempts 32 to answer any `this used to work, why doesn't it now?' 33 questions. 34 35 o The `set debug' command was replaced with `set log'. 36 o The `set log LCP' command was split into LCP, IPCP and CCP logs. 37 o Syslogd is used for logging. /etc/syslog.conf must be updated. 38 o LQR is disabled by default. 39 o Openmode is active by default. 40 o Users must be a member of group `network' for ppp access. Furthermore, 41 they must be `allow'ed to run ppp via the `allow' command in the 42 configuration file. 43 For a brief period, ppp could only be run as root. 44 o No diagnostic socket is created by default. The `set server' command 45 must be used. 46 o The diagnostic socket password must be specified *only* on the `set 47 server' command line. 48 o When `set server' is used to re-select a diagnostic port, all existing 49 diagnostic connections are dropped. 50 o pppd-deflate is now called deflate24. 51 o Filter IPs of 0.0.0.0 have a default width of 0, not 32. 52 o Errors in `add' and `delete' are logged as warnings rather than being 53 written to the TCP/IP log. 54 o Any number of diagnostic prompts are allowed, and they are allowed in 55 interactive mode. 56 o The default `device' is cuad1, then cuad0 57 o A password of "*" in ppp.secret causes a passwd database lookup in 58 pap mode. 59 o The value of the CONNECT environment variable is logged in the 60 utmp host field in -direct mode. 61 o Out-of-sequence FSM packets (IPCP/LCP/CCP) are dropped by default. 62 o Reconnect values are used after an LQR timeout. 63 o ^C works on the parent in -background mode. 64 o The dial/call/open command works asynchronously. As a result, prompts 65 do not lose control while dialing. 66 o The `display' command has been removed. All information is available 67 with the appropriate `show' command. 68 o Msext does not need to be enabled/disabled. Setting the NBNS (set nbns) 69 will auto enable it. The DNS side may be enabled/disabled, and if 70 enabled without a `set dns' (was `set ns') will use values from 71 /etc/resolv.conf. 72 o Filters are now called `allow', `dial', `in' and `out'. `set 73 ifilter ...' becomes `set filter in ...' etc. 74 o Authname and Authkey may only be `set' in phase DEAD. 75 o Set encrypt is no longer necessary. Ppp will respond to M$CHAP 76 servers correctly if it's built with DES. 77 o Throughput statistics are enabled by default. 78 o `Set stopped' only has two parameters. It's no longer possible to 79 have an IPCP stopped timer. 80 o `Set timeout' only has one or two parameters. Use `set lqrperiod' and 81 `set {lcp,ccp,ipcp,chap,pap}retry' for the other timers. These timeout 82 values can be seen using the relevant show commands. 83 o `set loopback' is now `enable/disable loopback'. 84 o `show auto', `show loopback' and `show mtu' are all part of `show bundle'. 85 o `show mru' is part of `show lcp' 86 o `show msext' and `show vj' are part of `show ipcp' 87 o `show reconnect' and `show redial' are part of `show link' 88 o A signal 15 (TERM) will now shut down the link gracefully. 89 o A signal 2 (HUP) will drop all links immediately. 90 o Signal 30 (USR1) is now ignored. 91 o Add & delete commands are not necessary in ppp.linkup if they are 92 `sticky routes' (ie, contain MYADDR or HISADDR). 93 o LINK and CARRIER logging are no longer available. 94 o Timer based DEBUG messages are now logged in the new TIMER log. 95 o Ppp can use tun devices > tun255. 96 o Protocol-compressed packets are accepted even if they were denied 97 at LCP negotiation time. 98 o Passwords aren't logged when logging the ``set server'' line. 99 o Command line options only need enough characters to uniquely identify 100 them. -a == -auto, -dd == -ddial etc. -interactive is also allowed. 101 o If you don't like seeing additional interface aliases when running in 102 -auto -alias mode, add ``iface clear'' to your ppp.linkdown file - 103 check the sample file. 104 o Ppp waits for 1 second before checking whether the device supports 105 carrier. This is controllable with ``set cd''. 106 o Random dial timeouts are now between 1 and 30 seconds inclusive rather 107 than between 0 and 29. 108 o Ppp now accepts M$CHAP (as well as normal CHAP) by default. If this 109 is not required, you must ``deny chap05 chap80''. 110 o The ``set device'' command now expects each device to be specified as an 111 argument rather than concatentating all arguments and splitting based 112 on commas and spaces. 113 o The ``show modem'' command is deprecated and has been changed to 114 ``show physical''. 115 o The words ``host'' and ``port'' are no longer accepted by the ``set filter'' 116 command. Removing them should yield the same results as before. 117 o The ``set weight'' command has been deprecated. The ``set bandwidth'' 118 command should now be used instead. 119 o The ``set autoload'' command syntax and implementation have changed as the 120 old implementation was mis-designed and dysfunctional. 121 o Ppp now waits either the full ``set cd'' time or until carrier is detected 122 before running the login script (whichever comes first). 123 o The -alias flag has been deprecated. The -nat flag should be used instead. 124 o Unbalanced quotes in commands are now warned about and the entire command 125 is ignored. 126 o It is now only necessary to escape the `-' character in chat scripts twice. 127 See the example files for details. 128 o Environment variables and ~ are expanded on in commands 129 o ``nat pptp'' is no longer necessary as this is now done transparently 130 o The ``!'' at the start of chat scripts and authkey can be made literal 131 (rather than meaning execute) by doubling it to ``!!''. 132 o MP autoload throughput measurements are now based on the maximum of input 133 and output averages rather than on the total. 134 o When only one link is open in MP mode, MP link level compression is not 135 open and the peer MRU >= the peer MRRU, ppp sends outbound traffic as 136 PROTO_IP traffic rather than PROTO_MP. 137 o MSCHAPv2 is now accepted by default. If you don't wish to negotiate 138 this, you must explicitly deny it. 139 o MPPE is enabled and accepted by default (although deflate and predictor1 140 are preferred. 141
