In this method, you assign a unique host name and IP address to the PPP network interface. (You might want to call the interface hostname-ppp.) Use this addressing scheme fo:
Endpoint machines on a network used as a multipoint dial-in server
Machines on a virtual network
Remote host that uses a dedicated IP address for communicating with a dial-in server over a dynamically allocated PPP link. (Note that this is not a requirement for the dynamic link configuration.)
Machine that is also configured as a router for a physical network, such as Ethernet or Token Ring
Machine in a standalone-to-standalone configuration that does not have an existing IP address. (The PPP interface becomes the primary network interface.)
You must specify the unique address and host name for the PPP network interface in the asppp.cf configuration file.
To create the new host name and IP address, add it to the /etc/inet/hosts file on the endpoint machines, as described in "hosts Database".