lxc launch ubuntu:20.04 tftp lxc config device add tftp eth0 nic nictype=physical parent=enp0s25 lxc file push Downloads/RT-N66U_3.0.0.4_382_52272-g73d3ea2.trx tftp/tmp/ lxc shell tftp apt update apt install -y tftp ip l set dev eth0 up ip a add 192.168.1.111/24 dev eth0 # ping 192.168.1.1 # tftp tftp> connect (to) 192.168.1.1 put RT-N66U_3.0.0.4_382_52272-g73d3ea2.trx
Links
https://chrishardie.com/2013/02/asus-router-firmware-windows-mac-linux/