Packet socket in promiscuous mode only receiving local traffic
问题 I have a socket created with socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)) , and I've set it into promiscuous mode using: struct ifreq ifr; strncpy((char*)ifr.ifr_name, interface, IF_NAMESIZE); if(ioctl(sock, SIOCGIFINDEX, &ifr)<0) fail(2); struct packet_mreq mr; memset(&mr, 0, sizeof(mr)); mr.mr_ifindex = ifr.ifr_ifindex; mr.mr_type = PACKET_MR_PROMISC; if(setsockopt(sock, SOL_PACKET, PACKET_ADD_MEMBERSHIP, &mr, sizeof(mr)) < 0) fail(2); The problem is that when I do a read() from the socket