This chapter covers the configuration and administration of IP routing on both routers (machines that not only transmit their own packets, but forward packets received but not addressed to them) and nonrouters (machines that transmit their own IP packets, but ignore any packets they receive that are not addressed to themselves). In addition, this chapter includes descriptions of how IP routing works with SCO TCP/IP.
Generally speaking, configuration of a router is determining how
that machine will learn about the existence of networks not directly
connected to itself so the machine may forward packets addressed to
machines on those networks.
Configuration of a nonrouter is determining
how that machine will know about the existence of routers on the
same network as itself so that the nonrouter can transmit packets to
machines not on the same network as itself.