OpenDTN aims to be an open source implementation of the Bundle Protocol (BP) along with various convergence layer (CL) adapters tightly based on the IETF draft specifications.

Plexus3D is a mesh analyses tool providing geometry validation with an optional EM package called CEMPlex. The latter is capable of performing several methods for spectral domain analysis. Together, Plexus3D uses a models geometry and assigns boundary conditions for use in solving frequency domain EM problems.