Ubuntu 22.04 Networking

The network in Ubuntu is configured netplan. For complete documentation, see Netplan's documentation here

Some common examples are shown below. On this release network interfaces follow the predictible network interface names. Run ip addr show to get a list of the network interfaces.

Most commonly:

• end0 - Ethernet device 0 (CPU Ethernet)
• enp1s0 - Ethernet PCIe port 1 slot 0 ethernet
• usb<mac> - USB ethernet
• wlan0 - WIFI

DHCP on end0. Edit the file /etc/netplan/ethernet.yaml and add:

network:
  version: 2
  renderer: networkd
  ethernets:
    end0:
      dhcp4: true
      dhcp6: true

Static IP on end0. Edit the file /etc/netplan/ethernet.yaml and add:

network:
  version: 2
  renderer: networkd
  ethernets:
    end0:
     dhcp4: no
     addresses: [192.168.0.50/24]
     gateway4: 192.168.0.1
     nameservers:
       addresses: [8.8.8.8,8.8.4.4]

After creating the yaml file, set the appropriate permissions and apply the netplan:

sudo chmod 600 /etc/netplan/*.yaml
sudo netplan apply