Static IP on Raspberry PI

TL;DR

Use nmcli (NetworkManager CLI) to update the ipv4.address. For example:

sudo nmcli con mod "preconfigured" ipv4.addresses 192.168.1.45/24

To complete my basic home lab setup, I had to set a static IP on my Raspberry Pi Zero. As I’m not a Linux enthusiast and I rely on Google search results, I followed lots of blog posts, editing the /etc/dhcpcd.conf file, but none of them were giving any results.

What was the problem?

After doing a bit more research about “why /etc/dhcpcd.conf not taking effect”, I found out that dhcpcd is not being used anymore! (source)

So, now we know that it’s using NetworkManager instead and we have to use it to update our IP.

Find the connection name first

To set the static IP, we should know which connection we should modify. In order to do it, execute this command:

nmcli dev status

It will give a result like this:

DEVICE         TYPE      STATE                   CONNECTION
wlan0          wifi      connected               preconfigured
lo             loopback  connected (externally)  lo
p2p-dev-wlan0  wifi-p2p  disconnected            --

wlan0 is my WI-FI connection and its connection name is preconfigured

NOTE

You can find out more details by just entering the nmcli command.

Modify the connection

In order to do it, we should just update the connection’s IPv4 address and nothing else! (At least in my case.)

We should execute a command in this template:

sudo nmcli con mod "CONNECTION_NAME" ipv4.addresses IP.ADD.RE.SS/24

And based on my RPi and router settings, I executed this command:

sudo nmcli con mod "preconfigured" ipv4.addresses 192.168.1.45/24

Now, give your device a reboot, and you’re good to go!