I'm getting ready to start studying for my MCITP Enterprise Admin certificate. I've been working with Active Directory environments for years so it isn't something new to me. However, I've never had a lab to practice deployments with and study. I have my current company LAN which is on 1gb switches. I also have 3 beefy retired servers I can use at my disposal. My idea is to use one server for my Active Directory server, and another one as a virtual server to create a few workstations.
Now I know I can put these machines on an isolated switch, seperate from my current LAN, but how would I get internet access to them? What are the best practices for labs like this? Also, are there free virtual server applications I can use or do I have to pay for VMWare? Thank you!