Comment 18 for bug 1697730

@Ryan:

2: eth0
       Link File: /lib/systemd/network/99-default.link
    Network File: /run/systemd/network/10-netplan-eth0.network
            Type: ether
           State: routable (configuring)
            Path: xen-vif-0
          Driver: vif
      HW Address: 00:16:3e:71:31:57 (Xensource, Inc.)
         Address: 192.168.2.159
                  fe80::216:3eff:fe71:3157
         Gateway: 192.168.2.1 (PC Engines GmbH)
             DNS: 192.168.2.1
                  fe80::c66e:1fff:fe3b:bdcd

Similar on the KVM guest, just being ens3 then.