On Mon, 16 Sep 2024 20:38:51 +0300 Isaac Boukris <iboukris at gmail.com> wrote: > + > + if (pmd->mac_pair) { > + rte_memcpy(&pmd->eth_addr, mac_addr, RTE_ETHER_ADDR_LEN); > + return 0; > + } Do not use rte_memcpy for simple mac address copy. Better to use rte_ether_addr_copy (or just memcpy)