instance, this can be one of: ``rtl8139``, ``ne2k_pci``,
``ne2k_isa``, ``paravirtual``.
-NIC_%d_NETWORK
+NIC_%d_NETWORK_NAME
(Optional) If a NIC network is specified, the network's name.
NIC_%d_NETWORK_UUID
NIC_%d_NETWORK_MAC_PREFIX
(Optional) If a NIC network is specified, the network's mac prefix.
-NIC_%d_NETWORK_TYPE
- (Optional) If a NIC network is specified, the network's type.
-
NIC_%d_NETWORK_TAGS
(Optional) If a NIC network is specified, the network's tags, space
separated.