map-mbone(1M)map-mbone(1M)NAME
map-mbone - Multicast Router Connection Mapper
SYNOPSIS
debuglevel] retries] timeout] [multicast-router]
DESCRIPTION
requests the multicast router connection information from the multicast-router, and prints the information to the standard out. sends out
the ASK_NEIGHBORS igmp message to the multicast-router. When the multicast-router receives the request, it sends back its configuration
information. multicast-router can be either an ip address or a system name.
If the multicast-router is not specified, flood mode is on by default and the igmp request message is sent to all the multicast router on
the local network. With flood mode on, when finds new neighbor routers from the replies, it will send the same igmp request to the new
neighbor routers. This activity continues until no new neighbor routers are reported in the replies.
The command line options are:
Sets the level for printing out the debug message. The default is 0,
which prints only error and warning messages. Debug level three prints most the messages.
Sets the retry times to poll the routing daemon for information. The
default is 1.
It specifies the timeout value in seconds for waiting the reply. The
default value is 2 seconds.
Sets the flood mode on. It is the default value when no multicast-router is given on the command line input.
Generates output in GRaphEd format.
Disable DNS lookup for the multicast router names.
The output contains the interface configuration information of the requested router(s). The format for each interface output is:
If there are multiple neighbor routers on one interface, they will all be reported. The neighbor_name will not be printed if the option is
specified on the command line.
The possible values for are:
Neighbors are reached via tunnel.
The tunnel uses IP source routing.
The interface is down.
The interface is administratively disabled for multicast routing.
The local router is the querier of the subnet.
The format of the GRaphEd output is:
If there is no neighbor router on an interface, then a will be put next to the node_name. If there are multiple neighbor routers on one
interface, all of them will be reported. The possible values for are:
The neighbor is reached via tunnel.
The neighbor is on the same network/subnet.
The interface is down.
Please see mrouted(1M) for and
EXAMPLES
Querying for the multicast router connection information.
127.0.0.1 (localhost) [version 3.3]:
193.2.1.39 -> 0.0.0.0 (all-zeros-broadcast) [1/1/disabled]
15.13.106.144 -> 15.255.176.33 (matmos.hpl.hp.com) [10/1/tunnel]
15.13.106.144 -> 15.17.20.7 (hpspddc.vid.hp.com) [10/1/tunnel/down]
Querying for multicast router connectivity with option:
GRAPH "Multicast Router Connectivity: Wed Feb 1 17:34:59 1995"=UNDIRECTED
252537488 {$ NP 1440 1060 $} "hpntc1t.cup.hp.com*"
;
252538974 {$ NP 940 1120 $} "hpntcbs.cup.hp.com"
252537488 "10/1E"
252539807 "1/1P"
;
252539807 {$ NP 1590 1150 $} "hpntc1h.cup.hp.com*"
;
Note
must be run as root.
AUTHOR
was developed by Pavel Curtis.
SEE ALSO mrouted(1M), mrinfo(1M).
map-mbone(1M)
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)