code: def _check_network(self, compute):
          
  
          try:
              vm_interfaces = yield from compute.interfaces()
              vm_interface_netmask = None
              for interface in vm_interfaces:
                  if interface["ip_address"] == self.ip_address:
                      vm_interface_netmask = interface["netmask"]
                      break
              if vm_interface_netmask:
                  vm_network = ipaddress.ip_interface("{}/{}".format(compute.host_ip, vm_interface_netmask)).network
                  for compute_id in self._controller.computes:
                      if compute_id == "local":
                          compute = self._controller.get_compute(compute_id)
                          interfaces = yield from compute.interfaces()
                          netmask = None
                          for interface in interfaces:
                              if interface["ip_address"] == compute.host_ip:
                                  netmask = interface["netmask"]
                                  break
                          if netmask:
                              compute_network = ipaddress.ip_interface("{}/{}".format(compute.host_ip, netmask)).network
                              if vm_network.compare_networks(compute_network) != 0:
                                  msg = "The GNS3 VM ({}) is not on the same network as the {} server ({}), please make sure the local server binding is in the same network as the GNS3 VM".format(
                                      vm_network, compute_id, compute_network)
                                  self._controller.notification.emit("log.warning", {"message": msg})
          except ComputeError as e:
              log.warning("Could not check the VM is in the same subnet as the local server: {}".format(e))
docs: Check that the VM is in the same subnet as the local server