i running ubuntu 20.04 i create a br0 on my wired net without any error.
i lauch a ubuntu 20.04 on lxd and add this device to lxd as eth0 (using doc page https://openschoolsolutions.org/set-up-network-bridge-lxd/)
after restart lxd, wired internet is disconnected in ubuntu 20.04 host. i login to ubunt guest it’s not possible to connect to internet (they do not take ip. i try to gave statics ip to that netplan try and netplan apply gave no problem, but stil not connected to internet). i stop ubuntu from lxd then
internet from ubuntu host back and working. this is my 01-netcfg.yaml:
network: ethernets: enx803f5d14119d: dhcp4: no version: 2 bridges: br0: dhcp4: no addresses: - 10.74.0.66/24 gateway4: 10.74.0.12 nameservers: addresses: - 10.74.0.12 interfaces: - enx803f5d14119d