DD-WRT fails GRC Shields Up and Win 8.1 keep 3 ports open by default.

Discussion in 'other firewalls' started by chrismani, May 26, 2014.

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  1. chrismani

    chrismani Registered Member

    Oct 29, 2010
    I have noticed that GRC Shields Up gave me this result

    Results from scan of ports: 0-1055

    0 Ports Open
    3 Ports Closed
    1053 Ports Stealth
    1056 Ports Tested

    NO PORTS were found to be OPEN.

    Ports found to be CLOSED were: 23, 25, 135

    Other than what is listed above, all ports are STEALTH.

    TruStealth: FAILED - NOT all tested ports were STEALTH,
    - NO unsolicited packets were received,
    - NO Ping reply (ICMP Echo) was received.


    Should I worry?

    Also, when I use Advance Port Scanner,

    I can see port 135,139 and 445 always open. Even though I am using ZoneAlarm firewall with extreme security settings.

    If you have Win 8.1, would you mind testing this for me?

    Kind Regards
    Last edited: May 26, 2014
  2. fax

    fax Registered Member

    May 30, 2005
    They are not open... GRC report them closed. You are perfectly fine. You need to check your router settings to see if there is anything that can be tuned up as your router is filtering your inbound not ZA.
  3. Minimalist

    Minimalist Registered Member

    Jan 6, 2014
    EU - Slovenia
    In the past I got some "closed" status instead "stealth". I solved the "problem" by forwarding all requests to that port to non-existent internal IP. Now I don't care anymore. As long as port is not open, everything is OK.
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