@nadnerB said:
Have a look at this one by softperfect.
It's portable but... I don't think that there is a report function.
https://www.softperfect.com/products/networkscanner/
I swear by SoftPerfect's Scanner. You can save your scans and it can do a LOT - - to the point where you can load up custom OID's for SNMP scanning, alternate credentials for WMI scanning, configure right-click options on your scan results, etc. I use it all the time.
When we migrate our remote sites to new IP schemes, I use it to inventory the subnet, then I'll come back and scan again (you can import your prior scans and merge them). The SNMP integration is great. I am getting printer serial and model numbers - - otherwise, I would have to connect to each manually.
It's portable in that you can simply copy the folder to a USB drive and it will work, but I don't know if it's 'proper portable.'
Great stuff.