MAP-MBONE(8) System Manager's Manual MAP-MBONE(8)NAME
map-mbone - Multicast connection mapper
SYNOPSIS
/usr/sbin/map-mbone [ -d debug_level ] [ -f ] [ -g ] [ -n ] [ -r retry_count ] [ -t timeout_count ] [ starting_router ]
DESCRIPTION
map-mbone attempts to display 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 localhost.
map-mbone traverses neighboring multicast routers by sending the ASK_NEIGHBORS IGMP message to the multicast starting_router. If this mul-
ticast router responds, the version 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 neighboring multicast routers are reported.
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 map-mbone 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.
"-f" option sets flooding option. Flooding allows the recursive 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 seconds.
IMPORTANT NOTE
map-mbone must be run as root.
SEE ALSO mrouted(8), mrinfo(8), mtrace(8)AUTHOR
Pavel Curtis
4.2 Berkeley DistributionMAP-MBONE(8)
Check Out this Related Man Page
in.rdisc(1M) System Administration Commands in.rdisc(1M)NAME
in.rdisc, rdisc - network router discovery daemon
SYNOPSIS
/usr/sbin/in.rdisc [-a] [-f] [-s] [send-address] [receive-address]
/usr/sbin/in.rdisc -r [-p preference] [-T interval] [send-address] [receive-address]
DESCRIPTION
in.rdisc remains part of the software distribution of the Solaris Operating Environment. It is, however, not used by default. in.routed(1M)
includes the functionality provided by in.rdisc. See routeadm(1M) for details of how to specify the IPV4 routing daemon.
in.rdisc implements the ICMP router discovery protocol. The first form of the command is used on hosts and the second form is used on
routers.
in.rdisc can be invoked in either the first form (host mode) or second form (router mode).
On a host, in.rdisc populates the network routing tables with default routes. On a router, advertises the router to all the hosts.
Host (First Form)
On a host, in.rdisc listens on the ALL_HOSTS (224.0.0.1) multicast address for ROUTER_ADVERTISE messages from routers. The received mes-
sages are handled by first ignoring those listed router addresses with which the host does not share a network. Among the remaining
addresses, the ones with the highest preference are selected as default routers and a default route is entered in the kernel routing table
for each one of them.
Optionally, in.rdisc can avoid waiting for routers to announce themselves by sending out a few ROUTER_SOLICITATION messages to the
ALL_ROUTERS (224.0.0.2) multicast address when it is started.
A timer is associated with each router address. The address will no longer be considered for inclusion in the routing tables if the timer
expires before a new advertise message is received from the router. The address will also be excluded from consideration if the host
receives an advertise message with the preference being maximally negative or with a lifetime of zero.
Router (Second Form)
When in.rdisc is started on a router, it uses the SIOCGIFCONF ioctl(2) to find the interfaces configured into the system and it starts lis-
tening on the ALL_ROUTERS multicast address on all the interfaces that support multicast. It sends out advertise messages to the ALL_HOSTS
multicast address advertising all its IP addresses. A few initial advertise messages are sent out during the first 30 seconds and after
that it will transmit advertise messages approximately every 600 seconds.
When in.rdisc receives a solicitation message, it sends an advertise message to the host that sent the solicitation message.
When in.rdisc is terminated by a signal, it sends out an advertise message with the preference being maximally negative.
OPTIONS -a Accept all routers independent of the preference they have in their advertise messages. Normally, in.rdisc only accepts
(and enters in the kernel routing tables) the router or routers with the highest preference.
-f Run in.rdisc forever even if no routers are found. Normally, in.rdisc gives up if it has not received any advertise message
after soliciting three times, in which case it exits with a non-zero exit code. If -f is not specified in the first form
then -s must be specified.
-r Act as a router, rather than a host.
-s Send three solicitation messages initially to quickly discover the routers when the system is booted. When -s is specified,
in.rdisc exits with a non-zero exit code if it can not find any routers. This can be overridden with the -f option.
-p preference Set the preference transmitted in the solicitation messages. The default is zero.
-T interval Set the interval between transmitting the advertise messages. The default time is 600 seconds.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWroute |
+-----------------------------+-----------------------------+
SEE ALSO in.routed(1M), routeadm(1M), ioctl(2), gateways(4), attributes(5), icmp(7P), inet(7P)
Deering, S.E., editor, ICMP Router Discovery Messages, RFC 1256, Network Information Center, SRI International, Menlo Park, California,
September 1991.
SunOS 5.10 5 Nov 2004 in.rdisc(1M)