Network Simulator

A fast and programmable network simulator

Assemble many kind of network gears in various configurations, with easy to configure failure rates.

In addition, the simulator is fully programmable so any equipment can exhibit any custom behavior.

Real traffic can also be injected into the simulation via a special device, or inversely generated traffic can be injected into a physical network interface.

Similarly, traffic can be read from or recorded into a file1.

1: in PCAP format.

Use cases

Supported Technologies


  • Routers
  • NAS gateways
  • Switches
  • Hubs
  • Taps
  • Hosts
  • Servers
  • Clients
  • ...


  • Ethernet
  • ARP
  • IPv4
  • IPv6
  • ICMP
  • TCP
  • UDP
  • DNS
  • DHCP
  • HTTP
  • HTML
  • ...