Wednesday, August 8, 2012

Ostinato - Open source Packet/Traffic Generator and Analyzer

              is a network packet and traffic generator and analyzer with a friendly GUI. It aims to be “Wireshark in Reverse” and thus become complementary to Wireshark. It features custom packet crafting with editing of any field for several protocols: Ethernet, 802.3, LLC SNAPVLAN (with Q-in-Q), ARP, IPv4, IPv6, IP-in-IP a.k.a IP Tunneling, TCPUDPICMP,HTTPSIPRTSPNNTP, etc. It is useful for both functional and performance testing.

Ostinato is an open-source, cross-platform network packet crafter/traffic generator and analyzer with a friendly GUI. Craft and send packets of several streams with different protocols at different rates.

Ostinato aims to be "Wireshark in Reverse" and become complementary to Wireshark.


  • Runs on Windows, Linux, BSD and Mac OS X (Will probably run on other platforms also with little or no modification but this hasn't been tested)
  • Open, edit, replay and save PCAP files
  • Support for the most common standard protocols
    • Ethernet/802.3/LLC SNAP
    • VLAN (with QinQ)
    • ARP, IPv4, IPv6, IP-in-IP a.k.a IP Tunnelling (6over4, 4over6, 4over4, 6over6)
    • Any text based protocol (HTTP, SIP, RTSP, NNTP etc.)
    • More protocols in the works ...
  • Modify any field of any protocol (some protocols allow changing packet fields with every packet at run time e.g. changing IP/MAC addresses)
  • User provided Hex Dump - specify some or all bytes in a packet
  • User defined script to substitute for an unimplemented protocol (EXPERIMENTAL)
  • Stack protocols in any arbitrary order
  • Create and configure multiple streams
  • Configure stream rates, bursts, no. of packets
  • Single client can control and configure multiple ports on multiple computers generating traffic
  • Exclusive control of a port to prevent the OS from sending stray packets provides a controlled testing environment
  • Statistics Window shows realtime port receive/transmit statistics and rates
  • Capture packets and view them (needs Wireshark to view the captured packets)
  • Framework to add new protocol builders easily 
Download Link : Click Here