What is the purpose of port scanning?
Port scanning is a method of determining which ports on a network are open and could be receiving or sending data. It is also a process for sending packets to specific ports on a host and analyzing responses to identify vulnerabilities.
Should I disable port scan?
The Disable Port Scan and DoS Protection feature can be enabled or disabled in the NETGEAR router GUI. ... This causes a Denial of Service (DoS) and results in slow access to the Internet, since the amount of traffic attempting to ping your IP address overloads the router.