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These extensions can be used if `\-\-protocol udp' is specified. It
provides the following options:
.TP
[\fB!\fP] \fB\-\-source\-port\fP,\fB\-\-sport\fP \fIport\fP[\fB:\fP\fIport\fP]
Source port or port range specification.
See the description of the
\fB\-\-source\-port\fP
option of the TCP extension for details.
.TP
[\fB!\fP] \fB\-\-destination\-port\fP,\fB\-\-dport\fP \fIport\fP[\fB:\fP\fIport\fP]
Destination port or port range specification.
See the description of the
\fB\-\-destination\-port\fP
option of the TCP extension for details.