.\"	$NetBSD: pim6dd.8,v 1.7 2000/11/07 06:43:37 lukem Exp $
.\"
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.\"	KAME Id: pim6dd.8,v 1.4 2000/05/05 14:43:18 sumikawa Exp
.\"
.Dd Nov 17, 1998
.Dt PIM6DD 8
.Os
.Sh NAME
.Nm pim6dd
.Nd PIM for IPv6 dense mode daemon
.Sh SYNOPSIS
.Nm
.Op Fl c Ar configfile
.Op Fl d Op debug_level Op ,debug_level
.Sh DESCRIPTION
.Nm
is an IPv6 multicast routing daemon, which supports
PIMv2(Protocol Independent Multicast Version 2) dense mode
for IPv6.
.Pp
Options supported by
.Nm Ns :
.Bl -tag -width Ds
.It Fl c Ar configfile
Specify alternate location,
.Ar configfile ,
for configuration file.
By default,
.Pa /etc/pim6dd.conf
is used.
.It Fl d
Specify debug levels. If this option is specified without any arguments,
all debug messages will be printed out.
A subset of the messages to be printed out can be specified
as arguments of the option.
Valid debug levels are
.Ic timeout, packets, interfaces, kernel, mfc, pim_detail, pim_hello,
.Ic kernel, mfc, pim_detail, pim_hello, pim_jp, pim_graft, pim_asserts,
.Ic pim_routes, pim_timers, rpf, pim, routes, routers, timers,
and
.Ic asserts.
.El
.Pp
.Nm
automatically configures itself to forward on all multicast-capable
interfaces, i.e., interfaces that have the IFF_MULTICAST flag set (excluding
the "loopback interface").
To override the default configuration,
configuration commands may be placed in
.Pa /etc/pim6dd.conf
.Po
or an alternative file, specified by the 
.Sq Fl c
option
.Pc .
.\"
.Sh FILES
.Bl -tag -width /etc/pim6dd.conf -compact
.It Pa /etc/pim6dd.conf
The default configuration file.
.El
.Sh SEE ALSO
.Xr daemon 3 ,
.Xr pim6dd.conf 5
.Sh HISTORY
The
.Nm
command is based on
.Ic pimdd ,
which is an IPv4 multicast routing daemon
developed at the University of Oregon.
.Ic pimdd
has been derived from PIM sparse-mode
.Ic pimd
developed at University of Southern California.
Part of these two programs above has also been derived from
.Ic mrouted .
.Ic mrouted
is COPYRIGHT 1989 by The Board of Trustees of
Leland Stanford Junior University.
.\"
.Sh BUGS
.Nm
does not contain any unicast routing engine, so a unicast routing
daemon needs to run on the system. 
.Pp
The kernel unicast routing table is periodically polled by
.Nm
in order to follow changes of existing unicast routes.
.\"