September 2000
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/usr/sbin/in.rdisc [-a][-f][-s][send-address][receive-address] /usr/sbin/in.rdisc -r [-p preference][-T interval][send-address] [receive-address]
The in.rdisc command implements the ICMP router discovery protocol. Use the first form of the command on hosts and the second form on routers. On a host, in.rdisc is invoked at boot time to populate the network routing tables with default routes. On a router, it is also invoked at boot time to start advertising the router to all the hosts.
On a host, in.rdisc listens on the ALL_HOSTS (224.0.0.1) multicast address for ROUTER_ADVERTISE messages from routers. The received messages are handled thus: first, those listed ...