Hello there, dpdk-1.7.0/lib/librte_ether/rte_ether.h:208]: (style) Expression '(X & 0x2) == 0x1' is always false. Source code is return ((ea->addr_bytes[0] & ETHER_LOCAL_ADMIN_ADDR) == 1); but #define ETHER_LOCAL_ADMIN_ADDR 0x02 /**< Locally assigned Eth. address. */ Regards David Binderman