map-mbone - Multicast connection mapper

     /usr/sbin/map-mbone [ -d debug_level ] [ -f ] [ -g ] [ -n  ]
     [ -r retry_count ] [ -t timeout_count ] [ starting_router ]

     map-mbone attempts to display all multicast routers that are
     reachable  from the multicast starting_router. If not speci-
     fied  on   the   command   line,   the   default   multicast
     starting_router is the localhost.

     map-mbone traverses neighboring multicast routers by sending
     the    ASK_NEIGHBORS   IGMP   message   to   the   multicast
     starting_router. If this multicast router responds, the ver-
     sion number and a list of their neighboring multicast router
     addresses is part of that response. If the responding router
     has recent multicast version number, then map-mbone requests
     additional information  such  as  metrics,  thresholds,  and
     flags  from the multicast router. For each new occurrence of
     neighboring multicast router in the reply and  provided  the
     flooding  option has been selected, then map-mbone asks each
     of this multicast router  for  a  list  of  neighbors.  This
     search  for unique routers will continue until no new neigh-
     boring multicast routers are reported.

     "-d" option sets the debug level. When the  debug  level  is
     greater than the default value of 0, addition debugging mes-
     sages are printed. Regardless of the debug level,  an  error
     condition, will always write an error message and will cause
     map-mbone to terminate.  Non-zero debug levels have the fol-
     lowing effects:

     level 1
          packet warnings are printed to stderr.

     level 2
          all level 1 messages plus notifications  down  networks
          are printed to stderr.

     level 3
          all level 2 messages plus notifications of  all  packet
          timeouts are printed to stderr.

     "-f" option sets flooding option. Flooding allows the recur-
     sive  search  of neighboring multicast routers and is enable
     by default when starting_router is not used.

     "-g" option sets graphing in GraphEd format.

     "-n" option  disables  the  DNS  lookup  for  the  multicast
     routers names.

     "-r  retry_count"  sets  the  neighbor  query  retry  limit.
     Default is 1 retry.

     "-t timeout_count" sets the number of seconds to wait for  a
     neighbor  query  reply before retrying. Default timeout is 2

     map-mbone must be run as root.

     mrouted(8), mrinfo(8), mtrace(8)

     Pavel Curtis