Network ports are the entry points to a server or workstation that is connected to the Internet. A service that listens on a port is able to receive data from a client, process it and send a response back. Malicious clients can sometimes exploit vulnerabilities in the server code so they gain access to sensitive data or execute malicious code on the machine remotely.
 
The Port Scan feature scans the target device for many commonly used open ports. Results are reported on the device’s button on the WIRED ANALYSIS screen. The device’s button must be expanded to view the port scan results. 

To use the Port Scan feature: 

1. Run AutoTest
2. Tap the Wired Analysis icon on the HOME screen
3. Tap a device’s button to expand it
4. Tap the wired TOOLS button
5. Tap the Port Scan button

What ports are scanned?
OneTouch AT scans the following ports during the "PortScan" process.  OneTouch AT does not scan all ports in order to prevent tripping an IDS/IPS system.