# ls -al /etc/systemd/network


total 3
drwxr-xr-x 2 root root  88 Dec 28 10:49 .
drwxr-xr-x 1 root root  60 Feb  1 09:09 ..
-rw-r--r-- 1 root root 773 Dec 28 09:06 20-ethernet.network
-rw-r--r-- 1 root root 543 Dec 28 09:06 20-wlan.network
-rw-r--r-- 1 root root 543 Dec 28 09:06 20-wwan.network
