GNS3

GNS3 1.4

Free
GNS3 allows you to build, design and test your network
4.2  (70 votes)
5.4
1.5.3 (See all)

GNS3 allows you to build, design and test your network in a risk-free virtual environment.
Main features:
- Real-time network simulation for pre-deployment testing without the need for network hardware.
- Connect GNS3 to any real network.
- Customized topologies and labs within GNS3 for network certification training.

Editorial review:
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