How to Select Dynamic Routing on a Host That Is a Network Client

1. Become superuser on the host.

2. Ensure that the /etc/defaultrouter file is empty.

   If this file is empty, a network client is forced to select a dynamic routing protocol.

The type of dynamic routing used is selected by using the following criteria:

• If the /usr/sbin/in.rdisc program exists, the startup script starts in.rdisc. Any router on the network that is running RDISC then responds to any RDISC queries from the host. If at least one router responds, the host selects RDISC as its routing protocol.

• If the network router is not running RDISC or fails to respond to the RDISC queries, then in.rdisc on the host exits. The host then starts in.routed, which runs RIP.