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.\" $FreeBSD$
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.Dd December 15, 1996
.Os
.Dt MTEST 8
.Sh NAME
.Nm mtest
.Nd test multicast membership socket operations and ioctls
.Sh SYNOPSIS
.Nm
.Sh DESCRIPTION
.Nm
is a small program for testing the multicast membership socket operations
and ioctls.  It accepts the following commands, interactively:
.Bl -tag -width "a ifname e.e.e.e.e.e" -compact -offset indent
.It Ic j Ar g.g.g.g Ar i.i.i.i
Join the IP group address
.Ar g.g.g.g
on the interface with address
.Ar i.i.i.i .
.Ar i.i.i.i
may be specified as 0.0.0.0 to use the default interface.
.It Ic l Ar g.g.g.g Ar i.i.i.i
Leave the IP group address
.Ar g.g.g.g
on the interface with address
.Ar i.i.i.i .
.It Ic a Ar ifname Ar e.e.e.e.e.e
Join the Ethernet group address
.Ar e.e.e.e.e.e
on interface
.Ar ifname .
.It Ic d Ar ifname Ar e.e.e.e.e.e
Leave the Ethernet group address
.Ar e.e.e.e.e.e
on interface
.Ar ifname .
.It Ic m Ar ifname Ar 1/0
Set or reset ALLMULTI mode on interface
.Ar ifname .
.It Ic p Ar ifname Ar 1/0
Set or reset promiscuous mode on interface
.Ar ifname .
.It Ic ?\&
List legal commands.
.It Ic q
Quit the program.
.El
.\" .Sh SEE ALSO
.Sh AUTHORS
.An Steve Deering
.Sh BUGS
The command parser is not very flexible.