This document discusses research on modeling tree-anchored rockfall protection fences using the discrete element method (DEM). The fences are designed to withstand low-energy rockfall impacts up to 150kJ by anchoring to trees instead of metal piles, reducing environmental impact and construction costs. Full-scale impact tests were conducted on a single fence module and tensile tests characterized the mesh material properties. A DEM model was developed and validated against impact test data, accurately simulating cable loading and impact duration but with differences in displacements. A parametric analysis identified design parameters influencing behavior to improve the model.