At any time, you can remove a virtual network that you do not need any more from the physical server. To do this, you can use the prlsrvctl utility. For example, you can delete the network1 virtual network by running the following command:
# prlsrvctl net del network1
To check that network1 has been successfully removed, execute this command:
# prlsrvctl net list
Network ID Type Bound To
Host-Only host-only
Bridged bridged enp0s5