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EthanP
Asked: 2024-11-13 05:36:31 +0800 CST

Creating bridge with bond as slave on a specific VLAN

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I am on a Ubuntu 22.04.5 LTS server. The network ports are already trunked. I am trying to setup a virtual bridge with a bond as a slave using netplan on a VLAN 202. Below is not working:

$ cat /etc/netplan/00-bond-bridge-config.yaml
network:
  version: 2
  renderer: networkd
  ethernets:
    eno3:
      dhcp4: false
    eno4:
      dhcp4: false
  bonds:
    bond0:
      dhcp4: false
      interfaces: [eno3, eno4]
      parameters:
        mode: active-backup
        mii-monitor-interval: 100
  vlans:
    bond0.202:
        id: 202
        link: bond0
  bridges:
    br0:
      dhcp4: false
      interfaces: [bond0.202]
      addresses: [192.168.1.2/24]
      routes:
        - to: default
          via: 192.168.1.1
      nameservers:
        addresses: [1.1.1.1, 8.8.8.8]
        search: []

I am unable to ping my Ubuntu host. What do I have wrong in my yaml file?

network-bridge

1 Answers

  1. Best Answer

    From the Netplan documentation on How to configure a VM host with bonded network interfaces and three VLANs, I've modified your Netplan config to account for one untagged VLAN and one tagged VLAN.

    First, let's define your network:

    • VLAN1 untagged (management), IPv4: 192.168.1.0/24
    • VLAN202 tagged (guest), IPv4: 192.168.202.0/24
    • eno3, eno4 - bonded interfaces
    • bond0 - primary bond for untagged VLAN1
    • bond0-vlan202 - VLAN interface to connect to tagged VLAN202
    • br0 - bridge for interface bond0 on untagged VLAN1
    • br0-vlan202 - bridge on tagged VLAN202
    $ cat /etc/netplan/00-bond-bridge-config.yaml
network:
  version: 2
  renderer: networkd
  ethernets:
    eno3:
      dhcp4: false
    eno4:
      dhcp4: false
  bonds:
    bond0:
      dhcp4: false
      interfaces: [eno3, eno4]
      parameters:
        mode: active-backup
        mii-monitor-interval: 100
  vlans:
    bond0-vlan202:
        id: 202
        link: bond0
  bridges:
    br0:
      dhcp4: false
      interfaces: [bond0]
      addresses: [192.168.1.2/24]
      routes:
        - to: default
          via: 192.168.1.1
          on-link: true
      nameservers:
        addresses: [1.1.1.1, 8.8.8.8]
        search: []
    br0-vlan202:
      interfaces: [bond0-vlan202]
      dhcp4: false
      routes:
        - to: 0.0.0.0
          via: 192.168.202.1
          metric: 100
          on-link: true
      nameservers:
        addresses: [1.1.1.1, 8.8.8.8]
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