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18.3.4.2. UDP Protocol
These match options are available for the UDP protocol (
-p udp):
--dport— Specifies the destination port of the UDP packet, using the service name, port number, or range of port numbers. The--destination-portmatch option is synonymous with--dport.--sport— Specifies the source port of the UDP packet, using the service name, port number, or range of port numbers. The--source-portmatch option is synonymous with--sport.
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