Task 7 - UDP Scans

Task 7 Scan Types UDP Scans

If a UDP port doesn't respond to an Nmap scan, what will it be marked as?

Nmap refers to the port as being open|filtered

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๐Ÿšฉopen|filtered

When a UDP port is closed, by convention the target should send back a "port unreachable" message. Which protocol would it use to do so?

When a packet is sent to a closed UDP port, the target should respond with an ICMP (ping) packet containing a message that the port is unreachable.

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๐ŸšฉICMP

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