Multiple Network Interfaces

Some machines have more than one network interface, either because they are routers or multihomed hosts. Each additional network interface attached to the machine requires its own IP address and associated name. When you configure a router or multihomed host, you must manually add this information to the router's /etc/inet/hosts file. (See Chapter 5, Configuring Routers, for more information on setting up routers and multihomed hosts.)

Example 4-2 is the /etc/inet/hosts file for machine timbuktu shown in Figure 4-1.

Example 4-2 /etc/inet/hosts File for Machine timbuktu

127.0.0.1      localhost     loghost
192.9.200.70   timbuktu      #This is the local host name
192.9.201.10   timbuktu-201	#Interface to network 192.9.201

With these two interfaces, timbuktu connects networks 192.9.200 and 192.9.201 as a router.