station_netpoint_ns3 = station_host->get_netpoint()->extension<NetPointNs3>();
if (station_netpoint_ns3 == access_point_netpoint_ns3)
continue;
station_netpoint_ns3 = station_host->get_netpoint()->extension<NetPointNs3>();
if (station_netpoint_ns3 == access_point_netpoint_ns3)
continue;