NMAP
The NMAP import works via the XML output file of NMAP. This can be generated by using the -oA parameter of NMAP. Refer to 'Nmap Network Scanning for more information. A complete example of a valid NMAP command is:
sudo nmap -sS -sV -p- -vv -oA <naam output> <target IP adres>
NMAP generates three files, one of which is the XML file:
Click on 'Add Targets via NMAP.
Click on ‘Upload NMAP .XML’
Now, within the scope, you can see which ports are open.