Draft: server: add Router & DNS option and claim port 67
USB tethering requires default gateway routers and DNS servers to function. However, at boot we need to configure the default routes and DNS servers already otherwise USB tethering will only work after re-plugging the device. Provide the Routers & DNS option to specify the server IP as default gateway and DNS server. When USB tethering is activated, NetworkManager will take over control over DHCP using dnsmasq.
Also make sure that no other DHCP server can claim port 67
Edited by Administrator