ubuntu18.04 Bridge Settings

➜  ~ 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.
# 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:
    version: 2
    ethernets:
        ens160:
          dhcp4: no
          dhcp6: no

    bridges:
      br-ex:
        interfaces: [ens160]
        dhcp4: no
        addresses: [10.0.3.144/23]
        gateway4: 10.0.2.1
        nameservers:
          addresses: [114.114.114.114]
➜  ~

Execute the following command

netplan apply

 

If you want to see the log

netplan --debug apply