Hello, I am in a process of developing my own interface (similar to normal loop back interface as implemented in if_loop.c) My problem is I want the existing loop back interface and my interface enrty in the __NETDEVTAB__. I have created my own file and added the interface entry using the NETDEVTAB_ENTRY macro. I have also updated the net.cdl with my file and compiled the entire net package. It compiles fine. When I debug support.c, my device entry is not registered in the __NETDEVTAB__. As a result I am not able to create an ifnet structure for the same. Only standard loop_init is registered. Is this the right procedure? Will be glad if anyone can help me.I am working on synthetic linux platform. Thanks, Regards, Kaustubh -- Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos and search the list archive: http://sources.redhat.com/ml/ecos-discuss