| 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 |
| .B --source-port |
| 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 |
| .B --destination-port |
| option of the TCP extension for details. |