Netplan

Netplan is a utility for easily configuring networking on a Linux system. You simply create a YAML description of the required network interfaces and what each should be configured to do. From this description, Netplan will generate all the necessary configuration for your chosen renderer tool.

The YAML configuration files are located in /etc/netplan/.

To apply any changes to the network configuration, run the following command:

$ sudo netplan apply

Static IP Address

Example configuration with static IP:

network:
  version: 2
  renderer: networkd
  ethernets:
    enp3s0:
      addresses:
        - 82.103.128.15/26
      gateway4: 82.103.128.1
      nameservers:
          search: [ cust.asergo.com, asergo.com ]
          addresses: [ 82.103.191.3, 82.103.143.251 ]

VLAN Interface

Example for configuration of VLAN interface:

network:
  version: 2
  renderer: networkd
  ethernets:
    enp3s0:
      dhcp4: true
  vlans:
    vlan101:
      id: 101
      link: enp3s0
      addresses: [ 10.255.0.1/31 ]
      routes:
       - to: 10.0.0.0/8
         via: 10.255.0.0

Bonding

Bonding can be configured to achieve Link Aggregation, where multiple network interfaces work as one to provide load balancing and redundancy.

Bonding configuration example:

network:
  version: 2
  renderer: networkd
  bonds:
    bond0:
      interfaces:
        - enp3s0
        - enp3s1
      addresses: [ 82.103.128.15/26 ]
      gateway4: 82.103.128.1
      parameters:
        mode: 802.3ad