Today I was reading B. K. Puppy F.A.Q. and tried a link to a site that tests your system security and found that if I have my router hardware firewall activated, my system passes the ports test showing all of them as stealth, meaning it's safe as my computer or router or whatever doesn't answer to Internet questions about the state of my ports (I know, excuse my poor English but that's the only way I know to say this

The test was checking only the first 1025 ports or so.
I forgot to say that the result of the test was the same when Puppy (and others) software firewall was not activated than when it was (router hardware firewall always deactivated), just ports "closed"
Thanks for any answer.
Carlos