on 5.10.19-1-MANJARO my aim was to change my network interface name to eth0, for this purpose i have found commands at How to rename interface name? / Networking, Server, and Protection / Arch Linux Forums
ip link set ppp0 down ip link set ppp0 name pppoe0 ip link set pppoe5 up
in my case i run something like this:
nmcli;sudo ip link set enp3s0 down;sudo ip link set enp3s0 name eth0;sudo ip link set eth0 up
(my interface is enp***)
but after reboot i see it not connected any interface and i have to manually click the interface under NetworkManager icon. After that i see interface is back enp***:
so what is missing to set it permanent?
Someone in the linked topic says to add route:
route add default pppoe0
but i am unsure if that is needed.