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In order to provide the downstream server with the address of the real client, or at least the one talking to dnsdist, the ``useProxyProtocol`` parameter can be used when creating a :func:`new server <newServer>`.
-This parameter indicates whether a Proxy Protocol header should be prepended to the query before forwarding it to the backend, over UDP or TCP. This header contains the initial source and destination addresses and ports, and can also contain several custom values in a Type-Length-Value format. More information about the Proxy Protocol can be found at https://www.haproxy.org/download/2.2/doc/proxy-protocol.txt
+This parameter indicates whether a Proxy Protocol version 2 (binary) header should be prepended to the query before forwarding it to the backend, over UDP or TCP. This header contains the initial source and destination addresses and ports, and can also contain several custom values in a Type-Length-Value format. More information about the Proxy Protocol can be found at https://www.haproxy.org/download/2.2/doc/proxy-protocol.txt
Custom values can be added to the header via :meth:`DNSQuestion:setProxyProtocolValues` and :func:`SetProxyProtocolValuesAction`.