инструмент генерации сетевых пакетов / утилита ping (Network packet generation tool / ping utility)
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
