PNETLAB platform Group

Another docker question. Arista cEOS allows me bind its eth0 interface to any network I want to. Now, I am deploying another container, but its eth0 is greyed out with the message "Management Only" and it is bound to the docker0 bridge. I have already taken a look in the device_ceos.php, but I can't figure out how that works for cEOS, but not works for my container. Could anyone point the right way to do it?