1These extensions can be used if `--protocol udp' is specified.  It
2provides the following options:
3.TP
4.BR "--source-port " "[!] \fIport\fP[:\fIport\fP]"
5Source port or port range specification.
6See the description of the
7.B --source-port
8option of the TCP extension for details.
9.TP
10.BR "--destination-port " "[!] \fIport\fP[:\fIport\fP]"
11Destination port or port range specification.
12See the description of the
13.B --destination-port
14option of the TCP extension for details.
15