I tried find out the answer for myself but I'm not 100% sure if it's the best way.
I work for a large company, and my group also has our own separate test network. It's just a completely separate network with about 30 devices on it (not just PC's). No DCHP server, only a few switches and the devices themselves. I'm not allowed to connect these test devices to the company network which is fair enough.
But whenever I need to connect to the test network, I need to unplug my computer from the company network and connect to the test network. I'd rather have both connections at the same time so I can work on both networks. But while keeping the test network separate and secure from the company network.
Is there a best way to achieve this?