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   nping    ( 1 )

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UDP MODE

-p port_spec, --dest-port port_spec (Target ports)
           This option specifies which ports you want UDP datagrams to
           be sent to. It can be a single port, a comma-separated list
           of ports (e.g.  80,443,8080), a range (e.g.  1-1023), and any
           combination of those (e.g.  21-25,80,443,1024-2048). The
           beginning and/or end values of a range may be omitted,
           causing Nping to use 1 and 65535, respectively. So you can
           specify -p- to target ports from 1 through 65535. Using port
           zero is allowed if you specify it explicitly.

       -g portnumber, --source-port portnumber (Spoof source port)
           This option asks Nping to use the specified port as source
           port for the transmitted datagrams. Note that this might not
           work on all systems or may require root privileges. Specified
           value must be an integer in the range [0–65535].

       --badsum (Invalid Checksum)
           Asks Nping to use an invalid UDP checksum for the packets
           sent to target hosts. Since virtually all host IP stacks
           properly drop these packets, any responses received are
           likely coming from a firewall or an IDS that didn't bother to
           verify the checksum. For more details on this technique, see
           https://nmap.org/p60-12.html .