.. _config_listener_filters_original_dst: Original Destination ==================== Original destination listener filter reads the SO_ORIGINAL_DST socket option set when a connection has been redirected by an iptables REDIRECT target, or by an iptables TPROXY target in combination with setting the listener's :ref:`transparent ` option. Later processing in Envoy sees the restored destination address as the connection's local address, rather than the address at which the listener is listening at. Furthermore, :ref:`an original destination cluster ` may be used to forward HTTP requests or TCP connections to the restored destination address. * :ref:`v2 API reference ` * This filter should be configured with the name *envoy.listener.original_dst*.