code: public EpollServerSocketChannelConfig setIpTransparent(boolean transparent) {
          try {
              ((EpollServerSocketChannel) channel).socket.setIpTransparent(transparent);
              return this;
          } catch (IOException e) {
              throw new ChannelException(e);
          }
      }
docs: If {@code true} is used <a href="http://man7.org/linux/man-pages/man7/ip.7.html">IP_TRANSPARENT</a> is enabled,
  {@code false} for disable it. Default is disabled.