1 .\" $FreeBSD: src/usr.sbin/mrouted/mrinfo.8,v 1.9.2.4 2003/03/11 21:13:51 trhodes Exp $
2 .\" $DragonFly: src/usr.sbin/mrouted/mrinfo.8,v 1.2 2003/06/17 06:29:57 dillon Exp $
9 .Nd display configuration info from a multicast router
12 .Op Fl d Ar debug_level
13 .Op Fl r Ar retry_count
14 .Op Fl t Ar timeout_count
20 attempts to display the configuration information from the multicast router
21 .Ar multicast_router .
25 utility uses the ASK_NEIGHBORS IGMP message to the specified multicast router.
27 multicast router responds, the version number and a list of their neighboring
28 multicast router addresses is part of that response.
29 If the responding router
30 has a recent multicast version number, then
32 requests additional information such as metrics, thresholds, and flags from the
34 Once the specified multicast router responds, the
35 configuration is displayed to the standard output.
37 The following options are available:
38 .Bl -tag -width indent
39 .It Fl d Ar debug_level
41 When the debug level is greater than the
42 default value of 0, addition debugging messages are printed.
44 the debug level, an error condition, will always write an error message and will
48 Non-zero debug levels have the following effects:
49 .Bl -tag -width indent
51 packet warnings are printed to stderr.
53 all level 1 messages plus notifications down networks are printed to stderr.
55 all level 2 messages plus notifications of all packet
56 timeouts are printed to stderr.
58 .It Fl r Ar retry_count
59 Set the neighbor query retry limit.
61 .It Fl t Ar timeout_count
62 Set the number of seconds to wait for a neighbor query
64 Default timeout is 4 seconds.
68 .Nm mrinfo Ar mbone.phony.dom.net
69 127.148.176.10 (mbone.phony.dom.net) [version 3.3]:
70 127.148.176.10 -> 0.0.0.0 (?) [1/1/querier]
71 127.148.176.10 -> 127.0.8.4 (mbone2.phony.dom.net) [1/45/tunnel]
72 127.148.176.10 -> 105.1.41.9 (momoney.com) [1/32/tunnel/down]
73 127.148.176.10 -> 143.192.152.119 (mbone.dipu.edu) [1/32/tunnel]
76 For each neighbor of the queried multicast router, the IP of the queried router
77 is displayed, followed by the IP and name of the neighbor.
79 the metric (cost of connection), the threshold (multicast ttl) is displayed.
81 the queried multicast router has a newer version number, the type (tunnel,
82 srcrt) and status (disabled, down) of the connection is displayed.
86 utility must be run as root.