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