---
name: "mld6query"
section: "8"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["freebsd"]
url: "https://new.carta.tech/mld6query"
---

# mld6query(8)

send multicast listener query

## 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.