[1.16.2] Using udhcpc?

[Gilles]

Hello

	I'd like to use Busybox udhcpc with uClinux, but nothing happens
when I launch the application:
====================
root:~> udhcpc
root:~> ifconfig
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
====================

Google seems to say that the application expects to work with scripts:

http://pwet.fr/man/linux/administration_systeme/udhcpc
http://www.doit.org/udhcpc/

Can experienced users confirm that this is the way udhcpc works, and
the scripts above are correct?

Thank you.