.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--dccp-types\fR [\fB!\fR] \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--dccp-option\fR [\fB!\fR\] \fInumber\fP Match if DCP option set.