[FW1] Nmap and Fw-1 open ports

[Tony Wong <twong@FW1-NOSPAMSolutionCentral.com>]

For a properly secured firewall when scanned with Nmap with the -p0 option, Should there be no ports opened?

 

I got 3 ports opened and I supposed they are the Management ports 258, 256 etc.

 

Thanks