This kind of software typically costs several hundred dollars or more, but Latvian networking hardware and software maker MikroTik’s The Dude is considerably less expensive than that.
This is why network management applications can be so useful - they help you inventory and track all the devices on your network while watching out for network problems that may occur. Networks can be like closets: They start out completely organized, but then over time as items are added and stuff gets moved around, pretty soon you end up with a bit of a mess, with items that may or may not be working – or needed.