How can I push back MO on KSMPPD ?

[Bertrand Dupont]

Hi all,
I need to have an SMPP server to receive customers traffic and I just installed 
KSMPPD wich seems to work perfectly.
My problem / question is that I can't figure out how I can push back SMS MO in 
such config. Is it possible ?And if it is how can I push back the MO in kannel 
and route it to the correct smpp client ?
I've try to search but didn't find any example or documentation for this case.
Regards,Bertrand