In the normal situation, you won't have to do anything here, the ppp is preconfigured for the standard situation.

Connection with your ISP will be handled by PPP. The PPP Howto document will give you very detailed information about this protocol and how to set-up its numerous parameters.

Please refer to the Serial Modem configuration section of this user's guide to learn how to configure your ppp package.

The default options provided with the ppp.lrp should work and if you are not familiar with ppp leave them at first. After you get a connection you can "fine tune" your setup.