mrinfo(8) [netbsd man page]

MRINFO(8)						      System Manager's Manual							 MRINFO(8)

NAME

       mrinfo - Displays configuration info from a multicast router

SYNOPSIS

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

DESCRIPTION

       mrinfo attempts to display the configuration information from the multicast router multicast_router.

       mrinfo  uses  the ASK_NEIGHBORS IGMP message to the specified multicast router. If this multicast router responds, the version number and a
       list of their neighboring multicast router addresses is part of that response. If the responding router has a recent multicast version num-
       ber,  then mrinfo requests additional information such as metrics, thresholds, and flags from the multicast router. Once the specified mul-
       ticast router responds, the configuration is displayed to the standard output.

INVOCATION

       "-d" option sets the debug level. When the debug level is greater than the default value of 0, addition	debugging  messages  are  printed.
       Regardless  of  the debug level, an error condition, will always write an error message and will cause mrinfo to terminate.  Non-zero debug
       levels have the following 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.

       "-r retry_count" sets the neighbor query retry limit. Default is 3 retry.

       "-t timeout_count" sets the number of seconds to wait for a neighbor query reply. Default timeout is 4 seconds.

SAMPLE OUTPUT

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

IMPORTANT NOTE

       mrinfo must be run as root.

SEE ALSO

       mrouted(8), map-mbone(8), mtrace(8)

AUTHOR

       Van Jacobson

4.2 Berkeley Distribution														 MRINFO(8)

mrinfo(8)						      System Manager's Manual							 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

       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:
       Prints  packet  warnings to stderr.  Prints all level 1 messages and notifications of down networks to stderr.  Prints all level 2 messages
       and notifications of all packet timeouts to stderr.  Specifies the number of times to retry a neighbor query.  The default  is  3  retries.
       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  multi-
       cast  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 multi-
       cast 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)

																	 mrinfo(8)