I've been using VMWare to simulate a simple LAN (a DC and several workstations hosted on a single machine). The LAN will be used as a test environment for software that is currently in development.
Although the current requirement is simply to provide a virtual LAN, it would be ideal if we could also simulate various problems that might be encountered in the wild.
I've used VMWare simply because I don't know of any alternatives.
Can you recommend alternatives?