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-rw-r--r--doc/protocols.texi3
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/protocols.texi b/doc/protocols.texi
index 600f470458..29f5c90d81 100644
--- a/doc/protocols.texi
+++ b/doc/protocols.texi
@@ -251,6 +251,9 @@ Use UDP multicast as lower transport protocol.
@item http
Use HTTP tunneling as lower transport protocol, which is useful for
passing proxies.
+
+@item filter_src
+Accept packets only from negotiated peer address and port.
@end table
Multiple lower transport protocols may be specified, in that case they are