To create a new cluster network using the Harvester UI, navigate to Networks > Cluster Network Configuration.

Use the Create a Cluster Network option to create the new cluster network. E.g., name it cluznet.

Once the network is created, configure its uplink NIC via the Create Network Configuration option.

To configure the uplink link, a new NIC device must be made available to the Harvester host by performing the following steps using the Linux VMM:

• create a new virtual network
• use the new virtual network as the source of the NIC

To add a new virtual network:

• navigate to Edit > Connection Details > +
• assign the following properties to the new network:
  • Name: isim-nat-0
  • Mode: NAT
• click Finish

Use the virtual network as the source of the secondary NIC:

Restart the virtual machine.

The new NIC will be available as an option from the uplink NIC drop-down menu:

Now a new virtual machine network can be created as part of the new cluznet cluster network: