Windows Network Traffic Simulator

I need a small Windows application that pretends to be a busy machine on a network and produces believable, real-world traffic. The goal is not a full-blown lab tool but a lightweight “dummy” program I can launch on demand to see how other systems react to live-looking activity... (Budget: ₹600 - ₹1500 INR, Jobs: C# Programming, C++ Programming, Debugging, HTTP, Network Administration, Network Security, Software Development, Windows Desktop)