DLUX not showing hosts


I'm using ODL version 0.5.0-BORON on a docker container. When i run my Vanet script on mininet-wifi, the connection with the remote ODL controller is successful and ping too. the problem is when i display topology, only OF switches appear and no hosts. I made a ping between many mobile hosts hoping they appear (like onos) but no result.
Please quick help, i'm so pressed by deadlines!
Thanks in advance.

Karima SMIDA
Technologue en Informatique
D├ępartement TI
ISET Charguia
Tel: 99 365 125