MLD6QUERY(8)

MLD6QUERY(8) | System Manager's Manual | MLD6QUERY(8)

# NAME

`mld6query` —
send multicast listener query

# SYNOPSIS

`mld6query` | [`-dr`] intface [maddr]

# DESCRIPTION

`mld6query` sends an IPv6 multicast listener discovery (MLD) query packet toward the specified multicast address, maddr, toward interface intface. If you omit maddr, linklocal all nodes multicast address(ff02::1) is used.

After sending a query, `mld6query` waits for replies for at most 10 seconds. If a reply is returned, `mld6query` prints it with its type and then waits for another reply.

This program is provided only for debugging. It is not necessary for normal use.

With `-d`, `mld6query` will transmit MLD done packet instead of MLD query packet. With `-r`, similarly, MLD report packet will be transmitted. `-dr` options are for debugging purposes only.

# EXIT STATUS

The `mld6query` utility exits 0 on success, and >0 if an error occurs.

# HISTORY

The `mld6query` command first appeared in WIDE/KAME IPv6 protocol stack kit.

# BUGS

`mld6query` does not take care of multicast addresses which have non link-local scope.

May 17, 1998 | NetBSD 9.5