DraftSight DXF --> G code converter

Hello,

I am using draftSight Beta II with pleasure since a few weeks and I have now a (2D) design to be realized by a CNC machine (Laser Cutter).

The output of DraftSight is a  .dxf or  .dwg  file.

It looks like I need to convert my .dxf  files into G code... and perform post-processing.

What is THE program that can "easely" swallow  my DrafSight  .dxf  and create G code ?

I tried 4 of them (found on Internet); all declare that there are incompatibilities and hang up..... 

Does anyone has a suggestion and live experience with such converter ?

Thanks & Regards