@Kevin_Z Can you please tell me if this feature is available yet? I see it as quite important if UPnP is enabled. A network owner should be able to audit the list of open ports on their network.

@Kevin_Z use 'some website' . does not really help at all.   a) 'some website' ..what would that be, exactly?   b) that would only show the ports that 'some website' is actually scanning... most sites only scan the 'common services' ports.   c) that will also only show the ports on the outside which are open... not the important internal NAT'ing details such as what internal host and port are being exposed.   

please try not to give bad advise... upnp is undoubtably a security risk, and most people don't have any real idea of what it is or does or that you could even turn it off (let alone the ramifications of doing so).   

@Kevin_Z 

+1 on this request. 
upnp on by default is no good and as consequence, not being able to see what devices/ports on LAN is scary.