CPF and Shields Up

Help for v3
1

I tried Shields UP and for some reason the common ports test and all service ports test are close… it was used to be stealth. I haven’t done any changes to CPF so any ideas on how did this happen?

I’m running Windows Vista Home Premium and I’m behind a router.

2

This usually means that your router is responding to the Shields Up probes with a “NACK”. Do your CFP global rules end in a “block all in and log”?

3

I only have 2 Global rules

Allow All Outgoing Requests If The Target Is In [Local Area Network #1]
Allow All Incoming Requests If The Sender Is In [Local Area Network #1]

Thats it.

But how come before I get stealth results and now I get closed. Does that mean something is wrong with my router?

4

Go to “stealth ports wizard” and select the option to block all incoming connections to be sure CFP is not involved. Make sure that your current global rules end up in front of the new ones created by CFP3. What kind of router do your have? Some have the option of responding or not to incoming connection requests.

5

Hmm… I did what you said and I checked Shields UP and everything is stealth now. Should I keep it this way?

My router is Netgear WNR3500

6

Your router is what matters. You should configure your router to pass Shields Up. I can pass Shields Up without Comodo. A hardware firewall is your best line of defense. Then use Comodo for the HIPS and program control.

7

I’m gonna sound dumb here but I havn’t really configured my router. All I now is UPNP is off, Remote Management is off, and NAT is secured.

I know I’m missing alot more but thats what I get for being a noob.

8

I’m having the same problem. Whenever I turn my laptop on and run shields up it says my ports are stealth but after an hour it says my ports are closed. Any idea why is this happening?

9

What brand, model and revision of router do you have?

We need these details to know how to configure it and what you need to change.

Cheers,
Ewen :slight_smile:

10

GRC’s Shields Up! and “true stealth” - firewall test or harmful FUD? - in particular I’d recommend reading post #18 which explains basics of networking and the stealth myth.