[TriLUG] Linux and traffic generation

[Greg Brown]

That is really close to what I am searching for.  I'll tinker around
with it to check it out.  Thanks, Shane!

On 5/17/05, Shane O'Donnell <shaneodonnell at gmail.com> wrote:
> Have you looked at tcpreplay?  http://sourceforge.net/projects/tcpreplay/
> 
> It doesn't necessarily "generate" the traffic from scratch, but given
> that you have access to traffic that's similar, if not exact, to what
> you'd want to generate, you should be able to use tcpdump to capture
> the traffic (perhaps filtered on capture), optionally filter it once
> you've captured it, and then play back the filtered capture,
> generating only the traffic you want.
> 
> Did I miss something in your requirements?
> 
> Shane O.
> 
> On 5/17/05, Greg Brown <gwbrown1 at gmail.com> wrote:
> > I tried to send this once before and it bounced.  Let's try it again.
> >
> > I know that Linux 2.4.x kernels contained an optional traffic
> > generator.  I have never used it but now find myself with a need for a
> > traffic generator.  Does anyone know of a Linux-based software package
> > that can blast packets around the network at specific IP Addresses
> > using specific ports and protocols?
> >
> > Basically, what I've got here is a bunch of protocols I need to test
> > after a QOS change was made.  Basically what I'd like to do is
> > something like this:
> >
> > trafficgen <traget ip> <port/protocol> <time to megabyte duraction>
> >
> > What I'd like to get back are metrics on the bandwidth available,
> > number of packets sent, number of packets dropped, and the like.
> >
> > Is anyone aware of an OSS tool that can do this?
> >
> > I have several sniffers around here but I'd like to do more then just
> > dump a buffer of raw data across the net.
> >
> > Greg
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> --
> Shane O.
> ========
> Shane O'Donnell
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