ubuntu 配置br0网桥，亲测有效

sudo vim /etc/netplan/00-installer-config.yaml

network:
  ethernets:
    eno1:
      dhcp4: false
      dhcp6: false
  bridges:
    br0:
      interfaces: [ eno1 ]
      addresses: [192.168.1.100/24]
      gateway4: 192.168.1.129
      nameservers:
        addresses: [114.114.114.114]
version: 2


netplan apply