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diff --git a/extensions/libxt_dccp.man b/extensions/libxt_dccp.man
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+.TP
+[\fB!\fP] \fB\-\-source\-port\fP,\fB\-\-sport\fP \fIport\fP[\fB:\fP\fIport\fP]
+.TP
+[\fB!\fP] \fB\-\-destination\-port\fP,\fB\-\-dport\fP \fIport\fP[\fB:\fP\fIport\fP]
+.TP
+[\fB!\fP] \fB\-\-dccp\-types\fP \fImask\fP
+Match when the DCCP packet type is one of 'mask'. 'mask' is a comma-separated
+list of packet types. Packet types are:
+.BR "REQUEST RESPONSE DATA ACK DATAACK CLOSEREQ CLOSE RESET SYNC SYNCACK INVALID" .
+.TP
+[\fB!\fP] \fB\-\-dccp\-option\fP \fInumber\fP
+Match if DCP option set.