System Administration Guide: IP Services

How to Force a Machine to Be a Router

You can force a machine that has only one /etc/hostname.interface file (by default a host) to be a router.

  1. Become superuser on the machine.

  2. Create a file that is named /etc/gateways and leave this file empty.

This procedure is important if you decide to configure PPP links, as explained in System Administration Guide: Resource Management and Network Services.