(cherry picked from commit a58eda61a49608cca38507560003725bb56c36b9)
@@ -206,6 +206,9 @@ If only one interface directive is specified, none is automatically chosen.
If multiple interface directives are specified, only active or passive may
be chosen.
+The maximum number of interface directives that is allowed for either
+modes (active or passive) is 2.
+
.TP
netmtu
This specifies the network maximum transmit unit. To set this value beyond
dfcluster