The following sections contain some fairly generic information for several common operating systems which might run KPPP. The following sites may be of interest for further information about the ppp protocol, pppd and networking in general:
In order for KPPP (or indeed, pppd) to work, your kernel must have ppp support compiled in. If this is not the case, get yourself the latest version of pppd from any of the popular Linux® archives (such as ftp://sunsite.unc.edu/pub/Linux/system/network/serial/ppp/, and recompile your kernel with ppp support enabled.
Don't fret, since this sounds a lot scarier than it actually is. Don't forget to install pppd afterwards.
If you're not sure if you have a kernel with ppp support, issue the dmesg at the command prompt and look for something like this:
PPP: version 2.3.0 (demand dialing) TCP compression code copyright 1989 Regents of the University of California PPP Dynamic channel allocation code copyright 1995 Caldera, Inc. PPP line discipline registered
KPPP tries to find out for itself if your kernel supports PPP. If not, you will be notified as soon as KPPP starts up.
For Linux® 2.x kernels, the pppd daemon should
be version 2.3 or greater. You can find out what version your system has, by
issuing the command
on the command line. None of the
pppd daemons actually have a
--version, but putting the option in will cause the
pppd daemon to issue an error message, and then to
print out a list of options and other information, which includes the version of
the ppd daemon.