];//src  }  eth->eh_type = htons(0x000e);   //初始化x000_header  uh->version = 0x00;  uh->type = 0x0;  uh->len = 0x0;    //初始化eap_header  eh->code = 0x00;//respond  eh->id = pkt_data[00];  eh->len = 0x0;  eh->type = 0x00;//