+extern uint16_t nb_devices;
+extern uint16_t udp_port;
+extern uint8_t filter_idx;
+extern uint8_t ports[RTE_MAX_ETHPORTS];
+extern struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
+extern uint32_t enable_stats;
+extern struct device_statistics dev_statistics[MAX_DEVICES];
+extern uint8_t rx_decap;
+extern uint8_t tx_encap;
+