141 lines
7.3 KiB
Plaintext
141 lines
7.3 KiB
Plaintext
Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
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based on work by Eivind Eklund <perhaps@yes.no>,
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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$FreeBSD$
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This file summarises changes made to ppp that effect
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its configuration.
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It does not describe new features, rather it attempts
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to answer any `this used to work, why doesn't it now?'
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questions.
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o The `set debug' command was replaced with `set log'.
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o The `set log LCP' command was split into LCP, IPCP and CCP logs.
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o Syslogd is used for logging. /etc/syslog.conf must be updated.
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o LQR is disabled by default.
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o Openmode is active by default.
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o Users must be a member of group `network' for ppp access. Furthermore,
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they must be `allow'ed to run ppp via the `allow' command in the
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configuration file.
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For a brief period, ppp could only be run as root.
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o No diagnostic socket is created by default. The `set server' command
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must be used.
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o The diagnostic socket password must be specified *only* on the `set
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server' command line.
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o When `set server' is used to re-select a diagnostic port, all existing
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diagnostic connections are dropped.
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o pppd-deflate is now called deflate24.
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o Filter IPs of 0.0.0.0 have a default width of 0, not 32.
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o Errors in `add' and `delete' are logged as warnings rather than being
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written to the TCP/IP log.
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o Any number of diagnostic prompts are allowed, and they are allowed in
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interactive mode.
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o The default `device' is cuad1, then cuad0
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o A password of "*" in ppp.secret causes a passwd database lookup in
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pap mode.
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o The value of the CONNECT environment variable is logged in the
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utmp host field in -direct mode.
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o Out-of-sequence FSM packets (IPCP/LCP/CCP) are dropped by default.
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o Reconnect values are used after an LQR timeout.
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o ^C works on the parent in -background mode.
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o The dial/call/open command works asynchronously. As a result, prompts
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do not lose control while dialing.
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o The `display' command has been removed. All information is available
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with the appropriate `show' command.
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o Msext does not need to be enabled/disabled. Setting the NBNS (set nbns)
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will auto enable it. The DNS side may be enabled/disabled, and if
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enabled without a `set dns' (was `set ns') will use values from
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/etc/resolv.conf.
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o Filters are now called `allow', `dial', `in' and `out'. `set
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ifilter ...' becomes `set filter in ...' etc.
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o Authname and Authkey may only be `set' in phase DEAD.
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o Set encrypt is no longer necessary. Ppp will respond to M$CHAP
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servers correctly if it's built with DES.
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o Throughput statistics are enabled by default.
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o `Set stopped' only has two parameters. It's no longer possible to
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have an IPCP stopped timer.
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o `Set timeout' only has one or two parameters. Use `set lqrperiod' and
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`set {lcp,ccp,ipcp,chap,pap}retry' for the other timers. These timeout
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values can be seen using the relevant show commands.
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o `set loopback' is now `enable/disable loopback'.
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o `show auto', `show loopback' and `show mtu' are all part of `show bundle'.
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o `show mru' is part of `show lcp'
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o `show msext' and `show vj' are part of `show ipcp'
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o `show reconnect' and `show redial' are part of `show link'
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o A signal 15 (TERM) will now shut down the link gracefully.
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o A signal 2 (HUP) will drop all links immediately.
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o Signal 30 (USR1) is now ignored.
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o Add & delete commands are not necessary in ppp.linkup if they are
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`sticky routes' (ie, contain MYADDR or HISADDR).
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o LINK and CARRIER logging are no longer available.
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o Timer based DEBUG messages are now logged in the new TIMER log.
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o Ppp can use tun devices > tun255.
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o Protocol-compressed packets are accepted even if they were denied
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at LCP negotiation time.
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o Passwords aren't logged when logging the ``set server'' line.
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o Command line options only need enough characters to uniquely identify
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them. -a == -auto, -dd == -ddial etc. -interactive is also allowed.
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o If you don't like seeing additional interface aliases when running in
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-auto -alias mode, add ``iface clear'' to your ppp.linkdown file -
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check the sample file.
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o Ppp waits for 1 second before checking whether the device supports
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carrier. This is controllable with ``set cd''.
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o Random dial timeouts are now between 1 and 30 seconds inclusive rather
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than between 0 and 29.
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o Ppp now accepts M$CHAP (as well as normal CHAP) by default. If this
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is not required, you must ``deny chap05 chap80''.
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o The ``set device'' command now expects each device to be specified as an
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argument rather than concatentating all arguments and splitting based
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on commas and spaces.
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o The ``show modem'' command is deprecated and has been changed to
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``show physical''.
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o The words ``host'' and ``port'' are no longer accepted by the ``set filter''
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command. Removing them should yield the same results as before.
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o The ``set weight'' command has been deprecated. The ``set bandwidth''
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command should now be used instead.
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o The ``set autoload'' command syntax and implementation have changed as the
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old implementation was mis-designed and dysfunctional.
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o Ppp now waits either the full ``set cd'' time or until carrier is detected
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before running the login script (whichever comes first).
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o The -alias flag has been deprecated. The -nat flag should be used instead.
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o Unbalanced quotes in commands are now warned about and the entire command
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is ignored.
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o It is now only necessary to escape the `-' character in chat scripts twice.
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See the example files for details.
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o Environment variables and ~ are expanded on in commands
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o ``nat pptp'' is no longer necessary as this is now done transparently
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o The ``!'' at the start of chat scripts and authkey can be made literal
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(rather than meaning execute) by doubling it to ``!!''.
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o MP autoload throughput measurements are now based on the maximum of input
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and output averages rather than on the total.
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o When only one link is open in MP mode, MP link level compression is not
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open and the peer MRU >= the peer MRRU, ppp sends outbound traffic as
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PROTO_IP traffic rather than PROTO_MP.
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o MSCHAPv2 is now accepted by default. If you don't wish to negotiate
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this, you must explicitly deny it.
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o MPPE is enabled and accepted by default (although deflate and predictor1
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are preferred.
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