.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 DCCP option set.