216 lines
6.5 KiB
Groff
216 lines
6.5 KiB
Groff
.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. Neither the name of the project nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $Id: prefix.8,v 1.4 2000/05/31 17:00:08 itojun Exp $
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd October 10, 1998
|
|
.Dt PREFIX 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm prefix
|
|
.Nd configure network interface prefixes
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Bk -words
|
|
.Ar interface prefix
|
|
.Op Ar parameters
|
|
.Op Cm set | delete
|
|
.Nm
|
|
.Ar interface
|
|
.Cm matchpr Ar match_prefix
|
|
.Cm mp_len Ar match_prefix_len
|
|
.Cm usepr Ar use_prefix
|
|
.Cm up_uselen Ar use_prefix_len
|
|
.Op Ar parameters
|
|
.Op Cm add | change | setglobal
|
|
.Nm
|
|
.Fl a
|
|
.Op Fl d
|
|
.Op Fl u
|
|
.Cm matchpr Ar match_prefix
|
|
.Cm mp_len Ar match_prefix_len
|
|
.Cm usepr Ar use_prefix
|
|
.Cm up_uselen Ar use_prefix_uselen
|
|
.Op Ar parameters
|
|
.Op Cm add | change | setglobal
|
|
.Ek
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
is used to assign an prefix
|
|
to a network interface and/or renumbering
|
|
network interface prefixes.
|
|
.Nm
|
|
must be used at boot time to define the network prefix
|
|
of each interface present on a machine; it may also be used at
|
|
a later time to renumbering multiple interface's prefixes
|
|
and other prefix related parameters.
|
|
.Nm
|
|
is router-only command, so you must do following to use it.
|
|
.Dl % sysctl -w net.inet6.ip6.forwarding=1
|
|
If net.inet6.ip6.forwarding is set to 0,
|
|
.Nm
|
|
command fails by
|
|
.Er EPERM
|
|
error.
|
|
.Pp
|
|
The following options are available:
|
|
.Bl -tag -width indent
|
|
.It Ar interface
|
|
Specify an
|
|
.Ar interface
|
|
for which
|
|
.Ar prefix
|
|
is/are assigned or renumbered to.
|
|
This parameter is a string of the form
|
|
.Dq name unit ,
|
|
for example,
|
|
.Dq en0 .
|
|
.It Ar prefix
|
|
Assign/Delete an
|
|
.Ar prefix
|
|
to a network interface.
|
|
.It Cm prefixlen Ar len
|
|
Specify that
|
|
.Ar len
|
|
bits are reserved as identifier for IPv6 sub-networks in
|
|
.Ar prefix .
|
|
The
|
|
.Ar len
|
|
must be integer, and for syntactical reason it must be between 0 to 128.
|
|
It is almost always 64 under the current IPv6 assignment rule.
|
|
If the parameter is ommitted, 64 is used.
|
|
.It Cm matchpr Ar match_prefix
|
|
Specify
|
|
.Ar match_prefix
|
|
that is used for matching with preassigned prefixes to which
|
|
.Cm add | change | setglobal
|
|
command should be applied.
|
|
.It Cm mp_len Ar match_prefix_len
|
|
Specify the starting part of
|
|
.Ar match_prefix
|
|
to be used for matching with preassigned prefixes, as decimal bit number.
|
|
.It Cm mp_minlen Ar match_prefix_minlen
|
|
Specify the minimum length of prefixes which is allowed to be matched to
|
|
.Ar match_prefix ,
|
|
as decimal bit number.
|
|
.Cm add | change | setglobal
|
|
is not applied to preassigned prefixes with smaller prefix len than
|
|
.Ar match_prefix_minlen .
|
|
.It Cm mp_maxlen Ar match_prefix_maxlen
|
|
Specify the maximum length of prefixes which is allowed to be matched to
|
|
.Ar match_prefix ,
|
|
as decimal bit number.
|
|
.Cm add | change | setglobal
|
|
is not applied to preassigned prefixes with bigger prefix len than
|
|
.Ar match_prefix_maxlen .
|
|
.It Cm usepr Ar use_prefix
|
|
Specify
|
|
.Ar use_prefix
|
|
that is used for prefixes to be added on
|
|
.Cm add | change | setglobal
|
|
command.
|
|
.It Cm up_uselen Ar use_prefix_uselen
|
|
Specify the starting part of
|
|
.Ar use_prefix
|
|
copied to the starting part of prefixes to be added on
|
|
.Cm add | change | setglobal
|
|
command, as decimal bit number.
|
|
.It Cm up_keeplen Ar use_prefix_keeplen
|
|
Specify the midium part of
|
|
.Ar use_prefix
|
|
just next to the starting part specified by
|
|
.Ar use_prefix_uselen ,
|
|
as decimal bit number.
|
|
Contiguous bits part in the same bit position of an existent prefix
|
|
matched with
|
|
.Ar match_prefix
|
|
is copied to the same bit position of prefixes to be added.
|
|
.It Cm pltime Ar time
|
|
Assign an
|
|
.Ar time
|
|
as prefix preferred life time for a prefix to be added.
|
|
Valid value for
|
|
.Ar time
|
|
is decimal seconds number or special format as "d00h00m00s00",
|
|
where 00 can take any decimal number, and "d" means days, "h" means hours,
|
|
"m" means minutes, "s" means seconds. And alternatively, special keyword
|
|
"infinity" can be also be specified.
|
|
.It Cm vltime Ar time
|
|
Assign an
|
|
.Ar time
|
|
as prefix valid life time for a prefix to be added.
|
|
Valid value for
|
|
.Ar time
|
|
is same as for
|
|
.Cm pltime .
|
|
.It Cm raf_auto
|
|
Enable the autonomous address auto configuration for the prefix to be
|
|
added.
|
|
.It Fl raf_auto
|
|
Disable the autonomous address auto configuration for the prefix to be
|
|
added.
|
|
.It Cm raf_onlink
|
|
Let the prefix to be added to have onlink nature for the assigned
|
|
interface.
|
|
.It Fl raf_onlink
|
|
Let the prefix to be added not to have onlink nature for the assigned
|
|
interface.
|
|
.It Cm rrf_decrprefd
|
|
Enable the decrementation of the pltime.
|
|
.It Fl rrf_decrprefd
|
|
Disable the decrementation of the pltime.
|
|
.It Cm rrf_decrvalid
|
|
Enable the decrementation of the vltime.
|
|
.It Fl rrf_decrvalid
|
|
Disable the decrementation of the vltime.
|
|
.El
|
|
.Sh DIAGNOSTICS
|
|
Messages indicating the specified interface does not exist, the
|
|
requested prefix is unknown, or the user is not privileged and
|
|
tried to alter an interface's configuration.
|
|
.Sh SEE ALSO
|
|
.Xr netstat 1 ,
|
|
.Xr netintro 4 ,
|
|
.Xr ifconfig 8 ,
|
|
.Xr rc 8 ,
|
|
.Xr routed 8
|
|
.Rs
|
|
.%A M. Crawford
|
|
.%T Router Renumbering for IPv6
|
|
.%R internet-draft
|
|
.%N draft-ietf-ipngwg-router-renum-05.txt
|
|
.Re
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
command first appeared in WIDE/KAME IPv6 protocol stack kit.
|
|
.Pp
|
|
IPv6 and IPsec support based on the KAME Project (http://www.kame.net/) stack
|
|
was initially integrated into
|
|
.Fx 4.0
|