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Command: mld6query | Section: 8 | Source: FreeBSD | File: mld6query.8.gz
MLD6QUERY(8) FreeBSD System Manager's Manual MLD6QUERY(8)
NAME
mld6query - send multicast listener query
SYNOPSIS
mld6query [-dgr] intface [maddr]
DESCRIPTION
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.
EXIT STATUS
The program exits with 0 on success, non-zero on failures.
HISTORY
The mld6query utility first appeared in WIDE/KAME IPv6 protocol stack
kit.
BUGS
The mld6query utility does not take care of multicast addresses which
have non link-local scope.
FreeBSD 14.1-RELEASE-p8 May 17, 1998 FreeBSD 14.1-RELEASE-p8