11     item = std::find(arg.begin(), arg.end(), "-a");
 10     if ( item != arg.end() && item != arg.end()-1 ) {
  9         if ( *(item+1) != "srcmac" || *(item+1) != "dstmac" || *(item+1) != "srcip" || *(item+1) != "dstip" || *(item+1) != "srcport" || *(item+1) != "dstport" ) {
  8             std::cerr << "Wrong parametr [-a [srcmac|dstmac|srcip|dstip|srcport|dstport] [mac|ip|port]]" << std::endl;
  7         }
  6         arg.erase(item);
  5         arg.erase(item);
  4     }