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Ostinato 1.1

Ostinato Full Download Summary

User Rating: 2.6 (14 votes)

top download editor's pick
  • File size: 6.40 MB
  • Platform: Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64
  • License: Commercial
  • Price: $19.00
  • Downloads: Total: 744 | This Month: 9
  • Released: Jun 19, 2020
  • Publisher: Srivats P.
  • Publisher URL: https://ostinato.org/

Ostinato 1.1 Full Description

Ostinato is a packet generator and network traffic generator with a friendly GUI. Also a powerful Python API for network test automation. Craft and send packets of several streams with different protocols at different rates. Think of it as “Wireshark in Reverse”.

Ostinato aims to provide a traffic generator and network testing tool for every network engineer and developer - something not possible today with existing commercial network test equipment. With the right tool, network developers and engineers can do their jobs better and improve the quality of networking products.

What Ostinato cannot do:
Ostinato is stateless - stateful connection-oriented TCP connections are not supported. Please try TRex or Warp17 instead.
Ostinato cannot be used for generating fake traffic to websites.


Useful for both network load testing and functional testing
Use via GUI or Python API
Create and configure multiple streams
Configure stream rates, bursts, no. of packets
Interface level receive/transmit statistics and rates for realtime network monitoring and measurement
Per stream statistics for accurate and granular packet loss measurement
Network Device Emulation (ARP and ICMP) for multiple IP hosts to aid in network traffic simulation
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)
TCP (stateless), UDP, ICMPv4, ICMPv6, IGMP, MLD
Any text based protocol - HTTP, SIP, RTSP, NNTP etc. (underlying transport will be stateless however)
More protocols in the works …
Set a value for any field of any protocol
Vary packet fields across packets at run time e.g. changing IP/MAC addresses
Stack protocols in any arbitrary order to test error cases
User provided Hex Dump - specify some or all bytes in a packet
User defined script to substitute for an unimplemented protocol (EXPERIMENTAL)
Open and edit PCAP files, replay and save back
One controller, many agents
Many controllers can share an agent
Exclusive control of a port to prevent the OS from sending stray packets provides a controlled testing environment (Windows only)
Capture network traffic (needs Wireshark to view the captured packets)
Cross-Platform - runs on Windows, Linux and Mac OS X
Also available as a Live CD/USB and Virtual Appliance

Release notes:

New Release
Cut, copy, paste support added for streams, device groups, stats and logs
Import PCAPNG and any other Wireshark supported file format for PCAP import (issue 83)
Added support for npcap on Windows; npcap support is beta quality for now (issue 236)
Large animated notification in case of errors and warnings
Improved PCAP import with tshark 2.x/3.x
Improved PCAP replay timing accuracy
Improved handling of multiple simultaneous port groups by making their handling independent
When reset to default view, all selections and current index are also cleared
Set top and bottom dock windows to equal height at startup
File paths in preferences can be specified directly; using the file picker dialog is optional (issue 288)
Linux only - fix drone crash at startup if one of the ports doesn't have a link layer (mac) address (issue 298)
Fix drone crash due to contention between emulation packet processing thread and emulation device configuration threads
[ Ostinato full changelog ]
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Ostinato 1.1 Reviews

review by ilove (Mar 28, 2021)

very nice project

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