netplan_config.yaml

network:
  version: 2
  renderer: networkd

  ethernets:
    eth0:
      dhcp4: false
      dhcp6: false

    eth1:
      dhcp4: false
      dhcp6: false


  bridges:
    br254:
      interfaces: [ eth0 ]
      addresses: [ 172.16.254.101/25 ]
      nameservers:
          search: [local]
          addresses: [ 172.16.254.1 ]
      routes:
        - to: 0.0.0.0/0
          via: 172.16.254.1
          #table: 254
      #routing-policy:
      #  - from: 172.16.250.0/28
      #    table: 254

    br250:
      addresses: [ 172.16.250.14/28 ]
      interfaces: [ vlan250 ]

    br249:
      addresses: [ 172.16.249.14/28 ]
      interfaces: [ vlan249 ]

    br248:
      addresses: [ 172.16.248.14/28 ]
      interfaces: [ vlan248 ]

    br247:
      addresses: [ 172.16.247.14/28 ]
      interfaces: [ vlan247 ]
  

  vlans:
    vlan250:
      accept-ra: no
      id: 250
      link: eth0

    vlan249:
      accept-ra: no
      id: 249
      link: eth0

    vlan248:
      accept-ra: no
      id: 248
      link: eth0

    vlan247:
      accept-ra: no
      id: 247
      link: eth0