Docs: extra detail on proxy-protocol

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 1f45a6f0451c61023586507cd24e51ca10c8ee3e..6b4f8dace0e781016be5dc290adfabe0dc8d4ee2 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -40095,6 +40095,8 @@ of the proxy):
 .endd
 If &$proxy_session$& is set but &$proxy_external_address$& is empty
 there was a protocol error.
+The variables &$sender_host_address$& and &$sender_host_port$&
+will have values for the actual client system, not the proxy.
 
 Since the real connections are all coming from the proxy, and the
 per host connection tracking is done before Proxy Protocol is