Unknown data on reports

Hello, my name is Cristian

When I see the reports on firewall analyzer 5 I see some data labeled like 'Unknown' (on VPN reports and some others).

There is also info that is labeled like 'Unnassigned' on Protocols reports.

Now the question, is there any way to filter this before launch the report (I'm doing a customized report for a complete month)

thanks

: P