mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-16 10:20:30 +00:00
f2e366a105
of the typeset output, tend to make diffs harder to read and provide bad examples for new-comers to mdoc.
138 lines
4.3 KiB
Groff
138 lines
4.3 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: rtadvd.8,v 1.1.1.1 1999/08/08 23:31:42 itojun Exp $
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd May 17, 1998
|
|
.Dt RTADVD 8
|
|
.Os KAME
|
|
.Sh NAME
|
|
.Nm rtadvd
|
|
.Nd router advertisement daemon
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl c Ar configfile
|
|
.Op Fl P Ar policy
|
|
.Op Fl dDfs
|
|
.Ar interface ...
|
|
.Sh DESCRIPTION
|
|
.Nm Rtadvd
|
|
advertises router advertisement packet to the specified
|
|
.Ar interfaces .
|
|
.Pp
|
|
The program will daemonize itself on invocation.
|
|
Then, it will voluntarily send router advertisement packet periodically.
|
|
If a router solicitation packet from host has reached the program,
|
|
the program will respond by router advertisement packet.
|
|
.Pp
|
|
For each interface, which is called advertising interface,
|
|
content of router advertisement can be described in
|
|
.Xr rtadvd.conf 5 .
|
|
.Pp
|
|
If there is no description for the interface in the configuration file
|
|
or if the configuration file does not exist,
|
|
.Nm
|
|
sets all the parameters to their default values.
|
|
In particular,
|
|
.Nm
|
|
gets all the interface routes from the routing table and advertises
|
|
them as on-link prefixes.
|
|
.Pp
|
|
.Nm Rtadvd
|
|
watches the routing table.
|
|
By default, if an interface direct route is
|
|
added/deleted on an advertising interface,
|
|
.Nm
|
|
adds/deletes the corresponding prefix to/from its advertising list,
|
|
respectively.
|
|
If you do not want to enable this feature, you should specify the
|
|
.Ic Fl s
|
|
command line option when advocation.
|
|
.Pp
|
|
.Nm Rtadvd
|
|
can also receive router renumbering packets, and can do router
|
|
renumbering for the system it runs on, as the contents of those
|
|
packets.
|
|
.Bl -tag -width indent
|
|
.\"
|
|
.It Fl c
|
|
Specify an alternate location,
|
|
.Ar configfile ,
|
|
for the configuration file.
|
|
By default,
|
|
.Pa /etc/rtadvd.conf
|
|
is used.
|
|
.It Fl P
|
|
Specifies that
|
|
.Nm
|
|
receives router renumbering messages.
|
|
Also, specifies IPsec policy for
|
|
rrenumd sessions.
|
|
Because router renumbering can change the system's
|
|
IPv6 prefix, its messages must be protected by IPsec.
|
|
For details about
|
|
.Ar policy ,
|
|
please refer to
|
|
.Xr ipsec 4
|
|
and
|
|
.Xr ipsec_set_policy 3 .
|
|
.It Fl d
|
|
Debug.
|
|
.It Fl D
|
|
More debug.
|
|
.It Fl f
|
|
Foreground mode.
|
|
Do not become daemon.
|
|
.It Fl s
|
|
Static prefix.
|
|
Do not watch the routing table.
|
|
.El
|
|
.Sh RETURN VALUES
|
|
The program exits with 0 on success, and non-zero on failures.
|
|
.Sh FILES
|
|
.Bl -tag -width /etc/rtadvd.conf -compact
|
|
.It Pa /etc/rtadvd.conf
|
|
The default configuration file.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr daemon 3 ,
|
|
.Xr rtadvd.conf 5 ,
|
|
.Xr rtsol 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
command first appeared in WIDE Hydrangea IPv6 protocol stack kit.
|
|
.Sh CAVEAT
|
|
Do not perform router advertisement toward upstream direction,
|
|
you should only advertise to downstream direction.
|
|
If you advertise toward upstream by mistake,
|
|
you will see icmp6 redirect storm on that subnet.
|
|
This is because of the specification,
|
|
which says that advertising router is assumed to become
|
|
the default outgoing router for end hosts in the subnet.
|