330 lines
9.7 KiB
Groff
330 lines
9.7 KiB
Groff
.\" $KAME$
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.\"
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.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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.\" All rights reserved.
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.\"
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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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.\" 3. Neither the name of the project nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 5, 1998
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.Dt RRENUMD.CONF 5
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.Os KAME
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.Sh NAME
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.\"
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.Nm rrenumd.conf
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.Nd configuration file for router renumbering daemon
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.\"
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.Sh DESCRIPTION
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The rrenumd config file describes how the router renumbering packet
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must be constructed and to which destinations it should be sent.
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This file consists of a sequence of statements terminated by a semi-colon (`;').
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Statements are composed of tokens
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separated by white space, which can be any combination of blanks, tabs
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and newlines.
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This structure simplifies identification of
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the parts of the configuration associated with each other.
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Lines beginning with
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.Ql #
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are comments.
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.\"
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.Sh Meta Syntax
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Keywords and special characters that the parser expects exactly are
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displayed using the
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.Ic bold
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font.
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Parameters are specifying with
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.Ar underline .
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Parameters shown in
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square brackets (`[' and `]') are used to show optional
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keywords and parameters.
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The vertical bar (`|') is used to indicate
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between a choice of optional parameters.
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Parentheses (`(' and
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`)') are used to group keywords and parameters when necessary.
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.\"
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.Sh Interface specification
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There are some statements that may or have to specify interface.
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Interfaces are specified in the form of "name unit", such as
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.Ar lo0
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and
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.Ar ep1 .
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.\"
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.Sh Configuration Statements
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.Bl -tag -width Ds
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.\"
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.It Ic debug on|off ;
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Enables configuration file parser debugging.
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If
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.Ic on
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is specified,
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then debugging is enabled,
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If
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.Ic off
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is specified,
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then debugging is disabled. It is disabled by default.
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.\"
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.It Ic dest Ar dest-list Op Ar retrycmd ;
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Specifies destinations to which router renumbering messages should be
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sent.
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.Ar dest-list
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can be any combination of single or multiple numerical IPv6 addrs,
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or Full Qualified Domain Names.
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.Ar retrycmd
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has following syntax.
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.\"
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.Bl -tag -width Ds
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.It Ic retry Ar retry-num
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.Ar retry-num
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specifies how many router renumbering messages are sent repeatedly.
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.El
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.It Op Ic add|change|setglobal
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.Cm match-prefix Ar match-prefix-val
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.Op /match-prefix-len
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.Op Cm maxlen Ar maxlen-val
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.Op Cm minlen Ar minlen-val
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.Op Cm use-prefix Ar use-prefix-val
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.Op /use-prefix-len
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.Op Cm keeplen Ar keeplen-val
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.Op Ar use-prefix-values ;
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.Pp
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Specifies contents of sending router renumbering message with seqnum 0.
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If
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.Cm add|change|setglobal
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is not specified, then
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.Cm add
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is assumed.
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.Ar use-prefix-values
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has following syntax.
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.Pp
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{
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.Op Cm vltime Ar vltime-val
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.Op Cm pltime Ar pltime-val
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.Op Cm raf_onlink Cm on|off
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.Op Cm raf_auto Cm on|off
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.Op Cm rrf_decrprefd Cm on|off
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.Op Cm rrf_decrvalid Cm on|off
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}
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.Pp
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Each value has following meaning.
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.Pp
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.Bl -tag -width Ds -compact
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.It Cm match-prefix Ar match-prefix-val Op /match-prefix-len
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Specify
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.Ar match-prefix-val
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that is used for matching with preassigned prefixes to which
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.Cm add|change|setglobal
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command should be applied.
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.Ar /match-prefix-len
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Specify the starting part of
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.Ar match-prefix-val
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to be used for matching with preassigned prefixes, as decimal bit number.
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.It Cm maxlen Ar maxlen-val
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Specify the maximum length of prefixes which is allowed to be
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matched to
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.Ar match-prefix-val ,
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as decimal bit number.
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.It Cm minlen Ar minlen-val
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Specify the minimum length of prefixes which is allowed to be matched to
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.Ar match-prefix-val ,
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as decimal bit number.
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.It Cm use-prefix Ar use-prefix-val Op /usr-prefix-len
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Specify
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.Ar use-prefix-val
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that is used for prefixes to be added on
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.Cm add|change|setglobal
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command.
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.Ar /use-prefix-len
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Specify the starting part of
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.Ar use-prefix-val
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copied to the starting part of prefixes to be added on
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.Cm add|change|setglobal
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command, as decimal bit number.
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.It Cm keeplen Ar keeplen-val
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Specify the midium part of
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.Ar use-prefix-val
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just next to the starting part specified by
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.Ar use-prefix-len
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, as decimal bit number.
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Contiguous bits part in the same bit position of an existent prefix
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matched with
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.Ar match-prefix-val
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is copied to the same bit position of prefixes to be added.
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.It Cm vltime Ar vmtime-val
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Assign an
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.Ar time
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as prefix valid life time for a prefix to be added.
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Valid value for
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.Ar time
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is decimal seconds number or special format as "d00h00m00s00",
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where 00 can take any decimal number, and "d" means days, "h" means hours,
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"m" means minutes, "s" means seconds. And alternatively, special keyword
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"infinity" can be also be specified.
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.It Cm pltime Ar pltime-val
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Assign an
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.Ar time
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as prefix preferred life time for a prefix to be added.
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Valid value for
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.Ar time
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is same as for
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.Ar vltime-val .
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.It Cm raf_onlink Cm on|off
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Let the prefix to be added to have on-link or off-link nature
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for the assigned interface. If
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.Cm on
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is specified, the prefix have on-link nature. (e.g. the prefix
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belong to the link) If
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.Cm off
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is specified, the prefix have off-link nature. (e.g. the
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prefix does not belong to the link)
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.It Cm raf_auto Cm on|off
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Enable or disable the autonomous address auto configuration
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for the prefix to be added. If
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.Cm on
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is specified, autonomous address auto configuration is
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enabled. If
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.Cm off
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is specified, it is disabled.
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.It Cm rrf_decrprefd Cm on|off
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Enable or disable the decrementation of the pltime. If
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.Cm on
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is specified, decrementation of the pltime is enabled. If
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.Cm off
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is specified, decrementation of the pltime is disabled.
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.It Cm rrf_decrvalid Cm on|off
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Enable or disable the decrementation of the vltime. If
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.Cm on
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is specified, decrementation of the vltime is enabled. If
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.Cm off
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is specified, decrementation of the vltime is disabled.
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.El
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.\"
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.It seqnum Ar seqnum-val { Ar rrenum-cmd } ;
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Specifies contents of sending router renumbering message with some
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specific seqnum. Multiple of this statement can be specified if they
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have different
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.Ar seqnum-val
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each other.
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.Ar rrenum-cmd
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has just same syntax with above add|change|setglobal statement.
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.El
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.\"
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.Sh EXAMPLES
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For each configuration file example shown below, we suppose
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every IPv6 subnet has its own prefix beginning with
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fec0:0:0::/48 and with its own subnet number. (in this case,
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subnet number is 7th and 8th octet value of the prefix)
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.Pp
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If you want to assigne prefixes beginning with fec0:1:1::/48
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to each subnet, then following configuration will be enough,
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if each of your routers supports IPv6 multicast forwarding.
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The subnet number of the existing fec0:0:0::/48 prefix and the
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newly assigned fec0:1:1::/48 prefix will be same.
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.\"
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.Bd -literal -offset indent
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dest ff05::2;
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add match-prefix fec0:0:0:: /48 use-prefix fec0:1:1:: /48 keeplen 16;
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.Ed
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.Pp
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.\"
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If your routers don't support IPv6 multicast forwarding,
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you'll need to specify each destination at
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.Cm dest
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command.
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.\"
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.Bd -literal -offset indent
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dest fec0:0:0:1:260:8ff:fe24:fb3a fec0:0:0:2:200:eff:fe2e:dfe1 fec0:0:0:3:5254:ff:fedc:5217;
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add match-prefix fec0:0:0:: /48 use-prefix fec0:1:1:: /48 keeplen 16;
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.Ed
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.Pp
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.\"
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If you are going to do renumbering, then following procedure will be natural.
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.Bl -enum -offset indent
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.It
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Assigne new prefix.
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.It
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Set old prefix lifetimes to some appropriate transition
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period. In the followng example we use 1 week for valid
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lifetime, and 0 for preferred lifetime.
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Also, enable old prefix lifetime expiration.
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(By default, it is static and does not expire)
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.It
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After the transition period, old prefixes should become
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invalid, and may have been deleted.
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To make sure that they are deleted, send new router
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renumbering message, which specifies old prefixes as match
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prefix, and no use prefix.
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.El
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.Pp
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.\"
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The following configuration file will do 1 and 2.
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.\"
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.Bd -literal -offset indent
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dest ff05::2;
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seqnum 0 {
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add match-prefix fec0:0:0:: /48 use-prefix fec0:2:2:: /48 keeplen 16;
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};
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seqnum 1 {
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change match-prefix fec0:1:1:: /48 use-prefix fec0:1:1:: /48 keeplen 16 vltime d7 pltime 0 rrf_decrvalid on rrf_decrprefd on;
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};
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.Ed
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.Pp
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.\"
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And the following configuration file will do 3. (should be
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used for the router renumbering message to be sent 1 week
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afterward)
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.\"
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.Bd -literal -offset indent
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dest ff05::2;
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change match-prefix fec0:1:1:: /48;
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.Ed
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.Pp
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.\"
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In the above example, only
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.Cm add
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and
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.Cm change
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commands are used, and there is no example for
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.Cm setglobal
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command.
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.Cm setglobal
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command is almost same with
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.Cm change
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command except that it deletes all pre-defined IPv6 global address.
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.Sh SEE ALSO
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.Xr rrenumd 8
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.Xr prefix 8
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.Sh HISTORY
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The
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.Nm
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configuration file was first appeared in KAME IPv6 protocol stack kit.
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.\" .Sh BUGS
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.\" (to be written)
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