There’s a good chance you’re running an ISP-supplied router. That’s not something to be fearful of. There’s nothing inherently wrong with doing so, but you could be losing out on some enterprise-grade functionality for making the most of your local area network (LAN). If you’re serious about creating a home lab and self-hosting as much as you can to save money, building your own firewall and router may be a worthwhile project. It’s what I did, and I just wish I did it sooner. All you need is a cheap, passively cooled mini PC.