This HOWTO assumes that you are using a Linux 1.2.x kernel with the PPP 2.1.2 software. At present, Linux 1.3.x is still under development and the author has yet to experiment with this.
PPP version 2.2 is also available. Whilst this can be used with Linux 1.2.x, it is designed for Linux 1.3.x and requires kernel patching to work with Linux 1.2.x.
As this document is specifically designed to assist new users, it is highly recommended that you use a version of Linux and the appropriate PPP version that are known to be stable together,
Once the author has the time to experiment with Linux 1.3.x and PPP 2.2, additional information will be added to this document. (Please don't email me for this information as I will release it when it is ready - such requests will be assigned to /dev/null).
In the meantime, if you must use Linux 1.3.x, read the appropriate documents! The information given here regarding kernel configuration is completely wrong for 1.3.x kernels. I understand that the operation of the PPP-2.2 version with 1.3 kernels is very similar to that described here for PPP2.1.2 and 1.2.x kernels, but there are some differences.