package envoy.extensions.filters.network.sni_dynamic_forward_proxy.v3

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Configuration for the SNI-based dynamic forward proxy filter. See the :ref:`architecture overview <arch_overview_http_dynamic_forward_proxy>` for more information. Note this filter must be configured along with :ref:`TLS inspector listener filter <config_listener_filters_tls_inspector>` to work. [#extension: envoy.filters.network.sni_dynamic_forward_proxy]

• optional common.dynamic_forward_proxy.v3.DnsCacheConfig dns_cache_config = 1

  The DNS cache configuration that the filter will attach to. Note this configuration must match that of associated :ref:`dynamic forward proxy cluster configuration <envoy_v3_api_field_extensions.clusters.dynamic_forward_proxy.v3.ClusterConfig.dns_cache_config>`.

• oneof port_specifier

  • uint32 port_value = 2

    The port number to connect to the upstream.

• bool save_upstream_address = 3

  When this flag is set, the filter will add the resolved upstream address in the filter state. The state should be saved with key ``envoy.stream.upstream_address`` (See :repo:`upstream_address.h<source/common/stream_info/upstream_address.h>`).