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Free WAN Emulators?

Posted by Cliff on from the do-these-exist? dept.

ScottMan asks: "The company I work for is interested in WAN emulation software that does stuff like create false latency, random packet dropping, etc. After scouring every resource I know, I was able to find only one piece of software called The Cloud (at $4,000 a license) Does anyone know of ANY WAN emulation software that is GPL or similar?"

2 of 7 comments (clear)

  1. Will This Work? by karma_policeman · · Score: 2
    The LNBL Network Simulator, ns, is a simulation tool developed by the Network Research Group at the Lawrence Berkeley National Laboratory. Ns is an extensible, easily configured and programmed event-driven simulation engine, with support for several flavors of TCP (include SACK, Tahoe and Reno) and router scheduling algorithms. This work derives from S. Keshav's REAL simulator.

    There is also an ns version 2 available.

    I don't know if this is exactly what you're looking for, but it might help.

  2. Re:Use "dummynet" in FreeBSD by icedivr · · Score: 3

    Dummynet is great for this sort of application. I set up a small FreeBSD box at work with 5 IPs. I then configured a different set of pipes for each ip, 28.8, 33.6, 56, ISDN and DSL. I also configured different latencies and a small amount of packet loss. Now, if our developers want to simulate a low-speed connection, they configure their browswer to use the appropriate IP, where they connect to squid, and then to the appropriate devel server.