NetSim Network Simulator
Network simulation and emulation
NetSim Astra
Satellite planning and RF coverage
- Constellation design and visualization on a 3D globe
- Link budget with ITU-R P.618, coverage heatmaps and 5G NTN beam planning
- Comparison with STK and MATLAB: Astra Q&A
NetSim Cyber
Cyber-attack simulation for power grids
- Protocol-aware attacks on C37.118, IEC 61850, Modbus, DNP3 and IEC-104
- False data injection, replay, tampering, unauthorized control and DoS
- Runs with built-in protocol simulators, HIL simulators or real devices

















NetSim Network Simulator editions
NetSim Network Simulator has three editions. NetSim Astra and NetSim Cyber are separate products.
NetSim Pro
- All technology libraries
- Network coverage and capacity studies
- Protocol source C code access and priority support
- Industry: Telecom 5G, satellite operators, network equipment manufacturers
- Government: Military and Defence, Space
NetSim Standard
- For R&D at universities
- Includes protocol source C code
- Develop and simulate your own protocols and algorithms
- Interfaces with Python, MATLAB, SUMO, Wireshark
- Heavy on features, light on price
NetSim Academic
- For networking lab experiments at universities
- Easy-to-use GUI
- TCP/IP, switching, routing, Wi-Fi, MANET, IoT, WSN, LTE
- 35+ inbuilt lab experiments
- Academic pricing
Featured technology libraries
These are the current focus areas of NetSim Network Simulator. Select a library to see its protocol stack.
5G / 6G NR
Full-stack 5G New Radio: gNB, UE, 5G Core, Massive MIMO, beamforming, network slicing, SA and NSA, FR1 and FR2.
5G / 6G NTN
Non-terrestrial networks with LEO, MEO and GEO satellite layers, and the 3GPP Release 17 and 18 NTN extensions.
MANET
Multi-hop ad hoc routing with DSR, AODV, OLSR, OLSRv2 and ZRP, with mobility models and tactical radio bands.
Also available: Military Radio · Satellite Comm · IoT & WSN · VANETs · SDN · Network attack examples · AI / ML with NetSim · Cognitive Radio · Underwater Networks
Evaluate NetSim for your requirements
Request a demo, talk to our engineers, or read the documentation.