一、修改配置/etc/netplan

``

root@y36-server-ubuntucom:~# cat /etc/netplan/50-cloud-init.yaml 
# This file is generated from information provided by the datasource.  Changes
# to it will not persist across an instance reboot.  To disable cloud-init's
# network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
    ethernets:
        enp7s0:
          dhcp4: true
          dhcp6: false
    version: 2
    bridges:
      bri0:
        interfaces: [enp7s0]
        addresses: [192.168.107.67/24]
        gateway4: 192.168.107.254
        routes:
          - to: default
            via: 192.168.99.1
        nameservers:
          addresses:
            - 114.114.114.114
            - 8.8.8.8
            - 8.8.4.4
        parameters:
          stp: true
          forward-delay: 4
        dhcp4: no

切记：注意缩进

二、测试文件配置文件是否有误

root@y36-server-ubuntucom:~#  sudo netplan try 

三、应用配置文件

root@y36-server-ubuntucom:~# sudo  netplan apply