Windows UDP packet generator software?

Carlos Alcantar carlos at
Sat Dec 31 08:54:15 UTC 2011

+1 on iperf there is also jperf gui for the people that don't like iperf

Carlos Alcantar
Race Communications / Race Team Member
101 Haskins Way, So. San Francisco, CA. 94080
Phone: +1 415 376 3314 / carlos at /

-----Original Message-----
From: Ryan Pavely <paradox at>
Date: Thu, 22 Dec 2011 18:24:19 -0500
To: "nanog at" <nanog at>
Subject: Re: Windows UDP packet generator software?

If anyone needs a per-compiled iPerf.exe, no need for cygwin libraries,
lemme know.

It's a great tool!

   Ryan Pavely
    Director Research And Development
    Net Access Corporation

On 12/22/2011 3:20 PM, Larry Blunk wrote:
> On 12/22/2011 02:36 PM, Sean Harlow wrote:
>> iperf might be able to do what you need and there are Windows builds
>> available, but I'm not sure if it has a mode where it's not flooding
>> the network trying to test maximum speed.  Is there a reason that
>> standard ICMP pings aren't appropriate if you just want packet loss
>> info?  Obviously every platform worth using has ping built in.
>> ----------
>> Sean Harlow
>> sean at
>  In UDP mode, iperf sends at 1 Mbps by default.  You change
> the rate with the -b flag.   There's an iperf-2.0.5-cygwin
> build floating around for Windows.

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