map-mbone - Multicast connection mapper
/usr/sbin/map-mbone [-d debug_level] [-f] [-g] [-n] [-r retry_count] [-t
-d Sets the debug level. When the debug level is greater than 0 (the
default), additional debugging messages are printed. Regardless of the
debug level, if an error occurs, map-mbone writes an error message and
terminates. Nonzero debug levels have the following effects:
1 Prints packet warnings to stderr.
2 Prints all level 1 messages and notifications of down networks to
3 Prints all level 2 messages and notifications of all packet
timeouts to stderr.
-f Specifies the flooding option. Flooding allows the recursive search of
neighboring multicast routers, and is enabled by default when
starting_router is not used.
-g Specifies graphing in GraphEd format.
-n Disables the Domain Name Service (DNS) lookup for names of multicast
Specifies the number of times to retry a neighbor query. The default
is 1 retry.
Specifies the number of seconds to wait for a neighbor to reply to a
query before retrying. The default timeout is 2 seconds.
The map-mbone program displays information about all multicast routers that
are reachable from the multicast starting_router. If not specified on the
command line, the default multicast starting_router is the local host.
The map-mbone program traverses neighboring multicast routers by sending
the ASK_NEIGHBORS IGMP message to the multicast starting_router. If this
multicast router responds, the response includes the version number and a
list of addresses of neighboring multicast routers. If the responding
router has a recent multicast version number, map-mbone requests additional
information such as metrics, thresholds, and options from the multicast
router. If the flooding option (-f) is specified, map-mbone asks each new
neighboring multicast router for a list of neighbors. This search for
unique routers continues until no new neighboring multicast routers are
You must be superuser in order to run map-mbone.
Commands: mrinfo(8), mrouted(8), mtrace(8)