sizeof(nd_key->nd_target));
memcpy(nd_key->nd_sll, swkey->arp_sha, ETH_ALEN);
memcpy(nd_key->nd_tll, swkey->arp_tha, ETH_ALEN);
sizeof(nd_key->nd_target));
memcpy(nd_key->nd_sll, swkey->arp_sha, ETH_ALEN);
memcpy(nd_key->nd_tll, swkey->arp_tha, ETH_ALEN);