DOC: fix missed entry for "set-{src,dst}{,-port}"

There was the same explanation for tcp-request connection that I missed
in previous patch.

diff --git a/doc/configuration.txt b/doc/configuration.txt
index 61d4e460755d7502c8227193751362c812c87fee..620043f2188a4fb03858f6cddca75b705f10c3a0 100644 (file)
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -8763,7 +8763,8 @@ tcp-request connection <action> [{if | unless} <condition>]
 
          tcp-request connection set-src src,ipmask(24)
 
-      When set-src is successful, the source port is set to 0.
+      When possible, set-src preserves the original source port as long as the
+      address family allows it, otherwise the source port is set to 0.
 
     - set-src-port <expr> :
       Is used to set the source port address to the value of specified
@@ -8776,8 +8777,9 @@ tcp-request connection <action> [{if | unless} <condition>]
 
          tcp-request connection set-src-port int(4000)
 
-      Be careful to use "set-src-port" after "set-src", because "set-src" sets
-      the source port to 0.
+      When possible, set-src-port preserves the original source address as long
+      as the address family supports a port, otherwise it forces the source
+      address to IPv4 "0.0.0.0" before rewriting the port.
 
     - set-dst <expr> :
       Is used to set the destination IP address to the value of specified
@@ -8794,6 +8796,9 @@ tcp-request connection <action> [{if | unless} <condition>]
          tcp-request connection set-dst dst,ipmask(24)
          tcp-request connection set-dst ipv4(10.0.0.1)
 
+      When possible, set-dst preserves the original destination port as long as
+      the address family allows it, otherwise the destination port is set to 0.
+
     - set-dst-port <expr> :
       Is used to set the destination port address to the value of specified
       expression. If you want to connect to the new address/port, use
@@ -8807,6 +8812,10 @@ tcp-request connection <action> [{if | unless} <condition>]
 
          tcp-request connection set-dst-port int(4000)
 
+      When possible, set-dst-port preserves the original destination address as
+      long as the address family supports a port, otherwise it forces the
+      destination address to IPv4 "0.0.0.0" before rewriting the port.
+
     - "silent-drop" :
         This stops the evaluation of the rules and makes the client-facing
         connection suddenly disappear using a system-dependant way that tries