Devel::PPPort (3pm)  - Perl/Pollution/Portability
ppp-watch (8)        - daemon to make PPP interfaces act more like other inte...
pppd (8)             - Point-to-Point Protocol Daemon
pppd-radattr (8)     - RADIUS utility plugin for pppd (8)
pppd-radius (8)      - RADIUS authentication plugin for pppd (8)
pppdump (8)          - convert PPP record file to readable format
pppoe-discovery (8)  - perform PPPoE discovery
pppstats (8)         - print PPP statistics