Application to simulate network traffic for network stress test

The question heres what kind of traffic do you want to simulate.

port # 's

I'm looking for something to simulate typical network traffic. I'm running a Win2k3 AD network. I have Win2k, WinXP, and a few Win9x clients. I'd like to simulate traffic such as web browsing, file transfers, e-mail, DHCP requests, DNS querys, Client-Server authentication, etc.

I'm attempting to troubleshoot a problem with a particular WAN link but plan to test all links at a later date.

I've used QCheck to test maximum throughput and What's Up Gold's throughput tester, but I am looking for something that goes beyond a network ping test.

I use a program called "WAN Killer" that is part of the Solar Winds Engineers Edition toolset.

Thanks for the responses. While both of these will do throughput testing, I am trying to locate something that emulates workstation activity. So far I've only seen one product that will this but that appears to be a very expensive product and there is no evaluation available. I'm going to leave the question open for a couple of days to see if I receive any other responses before awarding points.

Thanks again to both of you.

Sure.

I assume you realise that web browsing, file transfers, e-mail, DHCP requests, DNS querys etc.. all get put inside a TCP packet and sent off using TCP? So from a testing point of view, if a WAN link works for TCP, all these other services will also work.

More interesting would be running services that use different protocols, like video streaming on UDP or NetBIOS.

David