On your router's config page, enter an easy-to-remember label for the device (like "Whitson's Desktop PC"), the MAC address, and your desired IP address. Make sure you're getting the MAC address for the correct network adapter-if you have both Ethernet and Wi-Fi on your computer, you'll have one MAC address for each. This is a unique string of characters that identifies a particular network adapter, and you can usually find it in your router's list of connected devices. To assign a reservation, you'll need the MAC address of the device in question. The location is different for every config page, but you're looking for something called "DHCP reservations," "static IP addresses," or something similar-on my Asus router, it's in the LAN settings category. (If you're using a mesh Wi-Fi system with an app instead of a config page, you'll find these settings in the app.) To set up a DHCP reservation, head to your router's configuration page-usually by typing its IP address in your browser's navigation bar-and log in. Your computer will ask for an IP address via DHCP, and your router will assign it the one you've reserved, with your computer being none the wiser. Doing it at the router level is called assigning a DHCP reservation, though many people (and even some routers) still refer to it as a "static IP address."ĭHCP reservations allow you to easily set everything up in one place with all your computers left at their default settings. You can assign these static IP addresses on the device itself-using, say, Windows' network settings on each computer-or you can do it at the router level. For example, I have my home server set to 192.168.1.10, my main desktop to 192.168.1.11, and so on-easy to remember, sequential, and unchanging. Instead of letting your router assign whatever IP address is free at any given time, you can assign specific IP addresses to the devices you access frequently.
That's where a static IP address comes in handy.
It's hard to remember which IP address is assigned to which device, and if they ever expire, you have to look it up all over again. But if you regularly SSH into your Raspberry Pi, use Wake-on-LAN to turn your computer on from across the house, or perform other advanced networking tasks, DHCP can become an annoyance.
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