- choose Add - IP address and put the address there, e.g. 10.10.0.99
- you can add as many addresses as you like (Therefore also "publics" and "internals"); for proper functioning the host must have already a NIC configured with an IP in that subnet (e.g. 10.10.0.1)
If you don´t have containers but (k)vms you must connect their virtual nics to a bridge (which works like a switch), can all be done via WEB-GUI