ifconfig Section of the asppp.cf File

The asppp.cf file must contain an ifconfig section with this syntax:

ifconfig interface-number plumb local-machine remote-machine up

Here is a description of the fields:

• ifconfig - Tells the link manager to run the ifconfig command and begin configuring the PPP interface.

• interface-number - Identifies the PPP interface ipdptpn for a point-to-point link or ipdn for a multipoint link. (Replace the n with the number of the interface.)

• plumb - Option of ifconfig that enables IP to recognize the interface.

• local-machine - Gives the name of the local endpoint, which can be the local host name or IP address.

• remote-machine - Gives the name of the remote endpoint, which can be the remote host name or IP address.

• up - Option of ifconfig that marks the interface just described as "up".

The link manager first runs the ifconfig command on the local machine to configure the ipdptp0 point-to-point interface. The zero in ipdptp0 gives the device number of the interface. The plumb option performs various activities necessary for IP to recognize the ipdptp0 interface. nomada is the name of the local host. nubian-ppp is the name of the dial-in server to which nomada connects through the point-to-point link. The ifconfig option up marks the ipdptp0 interface as up.

For more information about ifconfig, see Chapter 10, Troubleshooting PPP, and the ifconfig(1M) man page.