.\" .\" Copyright (c) 2007-2009 Bruce Simpson. .\" 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. The name of the author may not be used to endorse or promote products .\" derived from this software without specific prior written permission .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. .\" .\" $FreeBSD: src/usr.sbin/mtest/mtest.8,v 1.11 2009/04/29 09:50:04 bms Exp $ .\" .Dd April 29, 2009 .Os .Dt MTEST 8 .Sh NAME .Nm mtest .Nd test multicast socket operations .Sh SYNOPSIS .Nm .Sh DESCRIPTION The .Nm utility is a small program for testing multicast socket operations. .Pp It accepts the following commands, interactively, or as part of a scripted input file (useful for automated testing): .Bl -tag -width "a ifname e.e.e.e e.e.e.e" -compact -offset indent .Pp .\" .It Ic a Ar ifname Ar mac-addr Join the link-layer group address .Ar mac-addr on interface .Ar ifname . The group address should be in IEEE 802 MAC format, delimited by colon (':') characters. .It Ic d Ar ifname Ar mac-addr Leave the link-layer group address .Ar mac-addr on interface .Ar ifname . .It Ic m Ar ifname Ar 1/0 Set or reset ALLMULTI mode on interface .Ar ifname . This option is deprecated and is now a no-op. .\".It Ic p Ar ifname Ar 1/0 .\"Set or reset promiscuous mode on interface .\".Ar ifname . .Pp .It Ic j Ar mcast-addr Ar ifname Op Ar source-addr Join the multicast address .Ar mcast-addr on the interface with name .Ar ifname . .Pp If an optional source .Ar source-addr is specified, a source-specific join will be performed; if .Nm is already joined to the multicast address, the source will be added to its filter list. .Pp .It Ic l Ar mcast-addr Ar ifname Op Ar source-addr Leave the multicast address .Ar mcast-addr on the interface with address .Ar ifname . If a source .Ar source-addr is specified, only that source will be left. .\" .It Ic i Ar mcast-addr Ar ifname Ar n Ar source-addr ... Set the socket with membership of .Ar mcast-addr on interface .Ar ifname to include filter mode, and add .Ar n sources beginning with .Ar source-addr to the inclusion filter list. .\" .It Ic e Ar mcast-addr Ar ifname Ar n Ar source-addr ... Set the socket with membership of .Ar mcast-addr on interface .Ar ifname to exclude filter mode, and add .Ar n sources beginning with .Ar source-addr to the exclusion filter list. .\" .It Ic t Ar mcast-addr Ar ifname Ar source-addr Set the socket with membership of .Ar mcast-addr on interface .Ar ifname to block traffic from source .Ar source-addr . .\" .It Ic b Ar mcast-addr Ar ifname Ar source-addr Set the socket with membership of .Ar mcast-addr on interface .Ar ifname to allow traffic from source .Ar source-addr . .\" .Pp .It Ic g Ar mcast-addr Ar ifname Ar n Print .Ar n source filter entries for .An mcast-addr on interface .An ifname . .\" .Pp .It Ic f Ar filename Read commands from the file .Ar filename . .It Ic s Ar n Sleep for .Ar n seconds. .It Ic ?\& List legal commands. .It Ic q Quit the program. .El .Sh IMPLEMENTATION NOTES For each command implemented by .Nm , the address family of each argument must be identical; it is not possible to mix IPv4 multicast memberships with IPv6, for example. .Pp To support IPv6, all commands have now changed to accept an interface name rather than an interface address. For IPv4, the program will perform a lookup of the primary IP address based on the interface name. This may fail if no primary IP address is assigned. .Pp .Sh SEE ALSO .Rs .%A D. Thaler .%A B. Fenner .%A B. Quinn .%T "Socket Interface Extensions for Multicast Filters" .%O RFC 3678 .Re .Sh AUTHORS .An -split .An "Bruce Simpson" .An "Steve Deering" .An "Wilbert De Graaf"