MCASTSEND(1)

NAME
mcastsend - send multicast packets

SYNOPSIS
mcastsend [-l hop_limit] [-i interface] [-s scope] [-h] address port [file]

DESCRIPTION
The mcastsend utility reads the given file ( or the standard input if no file is specified) and sending them to the multicast address you specified. Also you must specify UDP port number or service name as seen on services(5).

The options are as follows:

-l hop_limit
    Specify the number of hop limit. By default, it depends on the system default value.

-i interface
    Specify the interface name to use sending packets. By default, kernel will decide.

-s scope
    (IPv6 only) Specify the hint in order to decision of source IP address to send packets. By default, global scope is applied. If you don't specify interface, mcastsend ignores this option. scope takes one of the following numeric:

    1 node local
    2 link local
    5 site local
    14 global

-h  Show this help message.

RETURN VALUES
mcastsend will exit with positive value on errors.

SEE ALSO
mcastread(1), sysctl(8)

HISTORY
The mcastsend command first appeared in WIDE/KAME IPv6 protocol stack kit.