Installing and Administering PPP

64 Chapter 4
Common pppd Options
signaling. pppd running on most links is basic and defined by a handful
of options, but each daemon can be remarkably different with a minor
change of options.
This section presents some of the more common and useful pppd
command line options. Most, like the active, passive and idle timer
options, control some aspect of link management. One important pppd
option, filter, is discussed at length in the section on security in Chapter
5. Beyond this discussion of options for link management are short
sections on synchronous PPP connections, PPP supported compression
options, and IP address assignment.