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

mld6query
send multicast listener query

mld6query [-dgr] intface [maddr]

The mld6query utility 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 -g, mld6query will transmit a General Query instead of the default Multicast-Address-Specific Query. 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.

The program exits with 0 on success, non-zero on failures.

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

The mld6query utility does not take care of multicast addresses which have non link-local scope.
May 17, 1998 FreeBSD 13.1-RELEASE

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