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mrinfo(8)
NAME
  mrinfo - Displays configuration information from a multicast router

SYNOPSIS
  /usr/sbin/mrinfo [-d debug_level] [-r retry_count] [-t timeout_count]
  multicast_router

OPTIONS
  -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 condition occurs, mrinfo 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
	  stderr.

      3	  Prints all level 2 messages and notifications of all packet
	  timeouts to stderr.

  -r retry_count
      Specifies the number of times to retry a neighbor query.	The default
      is 3 retries.

  -t timeout_count
      Specifies the number of seconds to wait for a neighbor to reply to a
      query. The default timeout is 4 seconds.

DESCRIPTION
  The mrinfo command displays the configuration information from the
  multicast router multicast_router.

  The mrinfo command sends the ASK_NEIGHBORS IGMP message to the specified
  multicast router.  If the multicast router responds, the response includes
  the version number and a list of addresses for their neighboring multicast
  routers.  If the responding router has a recent multicast version number,
  mrinfo requests additional information such as metrics, thresholds, and
  options from the multicast router.  Once the specified multicast router
  responds, the configuration is displayed to the standard output.

RESTRICTIONS
  You must be superuser in order to run mrinfo.

EXAMPLES
  The following example shows the output of the mrinfo command where
  mbone.phony.dom.net is specified as the multicast router:

       mrinfo mbone.phony.dom.net
       127.148.176.10 (mbone.phony.dom.net) [version 3.3]:
	127.148.176.10 -> 0.0.0.0 (?) [1/1/querier]
	127.148.176.10 -> 127.0.8.4 (mbone2.phony.dom.net) [1/45/tunnel]
	127.148.176.10 -> 105.1.41.9 (momoney.com) [1/32/tunnel/down]
	127.148.176.10 -> 143.192.152.119 (mbone.dipu.edu) [1/32/tunnel]

  For each neighbor of the queried multicast router, the IP address of the
  queried router is displayed, followed by the IP address and name of the
  neighbor. In square brackets, the metric (cost of connection) and the
  threshold (multicast ttl) are displayed. If the queried multicast router
  has a newer version number, the type (tunnel, srcrt) and status (disabled,
  down) of the connection are displayed.

SEE ALSO
  Commands: map-mbone(8), mrouted(8), mtrace(8)

  Networking: mbone.info(7)

Index for Section 8

Alphabetical listing for M

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