They all do. They're development servers, and I have to connect to them from another PC. THAT PC is also VPN'd in to my office, with its own DNS, so I can't use hostnames to talk back and forth. (Or more correctly, I can, but the hostnames have to resolve to fixed IP addresses.)
The real issue that I was trying to point out is that routers often have a limit to how many hosts you can reserve an address for. Mine turned out to be around 15. That seems like a lot, but when you count all the cell phones, satellite boxes, media players, game consoles, and smart devices in the house (I have a weather forecaster that pulls data off the Internet), it's not hard to end up wit 30 or more IP-enabled devices in the house.
True, they don't all need static IP's. The reason I was reserving most of the IP's was to detect rogue devices.
Now I have fixed IP's for only a few devices:
- My router (no duh there)
- 2 networked printers
- My desktop gaming computer (so I can host game servers)
- VM Server hosting
- Work PC
In all, I have 12 or so things that need fixed IP addresses... so I have stopped reserving the IP addresses for things like my satellite boxes, game consoles, and portable devices.
Yes, it requires management... but you can't set up a complex environment with multiple servers, and multiple VPN's, and not have to do some work to set all that up and maintain it.