Manual Reference Pages - MTRACE6 (8)
- print IPv6 multicast path from a source to
utilizes a tracing feature implemented in multicast routers that is
accessed via an extension to the MLD protocol. A trace query is
passed hop-by-hop along the reverse path from the
collecting hop addresses, packet counts, and routing error conditions
along the path, and then the response is returned to the requester.
Specifies the multicast receiver that the query wants to trace.
It is the host running
Send the trace query via unicast directly to the multicast router
A unicast router must be the last-hop router on the path from the
intended source to the receiver.
can also be a multicast address that the last hop router joins.
Set the query hop limit to
The default is 64.
Specifies the local interface (on a multi-homed host) for sending
the trace query and for receiving responses.
Specifies the link for the default first destination,
of the trace query.
This option is effective only when the
option is not specified,
and cannot coexist with the option.
can be a numeric link identifier,
or the interface name on the link when there is one to one mapping
between links and interfaces.
to the maximum number of hops that will be traced from the receiver
back toward the source. The default is 127 hops.
Print hop addresses numerically rather than symbolically and numerically
(saves a nameserver address-to-name lookup for each router found on
Specify the host that the trace response sends to.
By default, the response will send to the host running
Set the time to wait for a trace response to
seconds. The default is 3 seconds.
Multicast trace for IPv6 is experimental. MLD types for query and
response, and packet format are not officially defined.
specified by the
option is currently meaningless.
command first appeared in WIDE/KAME IPv6 protocol stack kit.
Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.