arp_hdr->arp_hlen = RTE_ETHER_ADDR_LEN;
arp_hdr->arp_plen = sizeof(uint32_t);
arp_hdr->arp_opcode = rte_cpu_to_be_16(opcode);
arp_hdr->arp_hlen = RTE_ETHER_ADDR_LEN;
arp_hdr->arp_plen = sizeof(uint32_t);
arp_hdr->arp_opcode = rte_cpu_to_be_16(opcode);