--- /dev/null
+@node CPR
+@section CPR
+
+Constant Packet Rate is used to hide fact of underlying payload packets
+appearance. In this mode daemon inserts necessary dummy packets and
+delays other ones.
+
+This mode is turned by @code{-cpr} option, where you specify desired
+outgoing traffic rate in KiB/s (kibibytes per second). This option also
+forces using of the @ref{Noise}! It is turned off by default.