Configure a machine as a router 

Involves creating hostname and hosts file and adding addresses

How to Configure a Machine as a Router

Select static routing on a host that is a network client 

Involves adding an entry into the defaultrouter file

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

Select dynamic routing on a host that is a network client 

Involves editing entries in the defaultrouter file

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

Force a machine to be a router 

Involves creating a gateways file

How to Force a Machine to Be a Router