1.\" $KAME: ifmcstat.8,v 1.6 2002/10/31 04:23:43 suz Exp $ 2.\" 3.\" Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the project nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" $FreeBSD$ 31.\" 32.Dd March 20, 2007 33.Dt IFMCSTAT 8 34.Os 35.Sh NAME 36.Nm ifmcstat 37.Nd dump multicast group management statistics per interface 38.Sh SYNOPSIS 39.Nm 40.Op Fl i Ar interface 41.Op Fl f Ar address-family 42.Op Fl M Ar core 43.Op Fl N Ar system 44.Nm 45.Op Ar kernel 46.\" 47.Sh DESCRIPTION 48The 49.Nm 50command dumps multicast group information from the kernel. 51.Pp 52The following options are supported: 53.Bl -tag -width Fl 54.It Fl i Ar interface 55specifies the interface to be displayed. 56.Pp 57.It Fl f Ar address-family 58specifies the address-family to be displayed; currently only 59.Ar inet 60and 61.Ar inet6 62are supported. 63.It Fl M Ar core 64extracts values associated with the name list from the specified core, 65instead of the default 66.Pa /dev/kmem . 67.It Fl N Ar system 68extracts the name list from the specified kernel instead of the 69default, which is the kernel image the system has booted from. 70.It Nm Ar system 71This is the same as specifying 72.Nm 73.Fl N Ar system . 74This usage is deprecated; it is supported only for backwards compatibility. 75.Sh BUGS 76.Nm 77needs superuser privilege. 78