contiki/backyard/platform/minimal-ppp
..
clock.c
contiki-conf.h
contiki-main.c
ctk-arch.h
leds-arch.c
Makefile
Makefile.minimal-ppp
ppp_arch.h
ppp-arch.c
README

When ./contiki is started, it will open a pty and connect its internal pppd
daemon to it.
The host side of the pppd process will assign an IP number to the contiki
interface, that means that it is not necessary to "ping" the contiki interface
to give it a number.