Communication PC <-> Router is blocked, but...

Discussion in 'LnS English Forum' started by El_Nebuloso, May 21, 2007.

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  1. El_Nebuloso

    El_Nebuloso Registered Member

    Joined:
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    Posts:
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    Hi @ all

    I have noticed the following problem...
    I created this rule on top of all rules in order to block the communication between PC <-> Router

    pic1.jpg
    (the mac is only a example)

    My application filtering looks like this...

    pic2.jpg

    When I want to connect to the inet, I remove the checkbox in the first rule.
    For example I connect to google and after surfing, I activate the checkbox in the first rule (so to my mind, ANY communition has to be blocked) and I close the browser.
    Then this happens... (remember I allready closed Firefox)

    pic3.jpg

    When I choose "Block", then there is the following "connection" (?) logged. (firefox is closed and first rule is activated)

    pic4.jpg

    Why ?
    What's wrong with my rule/filter or my understanding ? :doubt:

    El Nebuloso
     
    Last edited: May 22, 2007
  2. Climenole

    Climenole Look 'n' Stop Expert

    Joined:
    Jun 3, 2005
    Posts:
    1,640
    Hi El_Nebuloso :)


    The links won't work...

    Is it possible for you to try again?

    If you look for a good soft for screen capture you may try this one:
    MWSnap : http://www.mirekw.com/winfreeware/mwsnap.html

    and use the "manage attachments" button here.
    It's better than a link to an other site...

    :)
     
  3. El_Nebuloso

    El_Nebuloso Registered Member

    Joined:
    Mar 26, 2007
    Posts:
    25
    Sorry, I will try again this evening...
     
  4. El_Nebuloso

    El_Nebuloso Registered Member

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    I have no idea, why the hardcopies won't work at the first time, but now they are displayed.

    Referring to my first post, does anyone has a idea whats wrong with my configuration ?
     
  5. Climenole

    Climenole Look 'n' Stop Expert

    Joined:
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    Posts:
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    Guten Tag El_Nebuloso :)


    This is simple to understand:

    All communications are blocked between the PC and the router not in local looping of your PC...


    I guess (I'm not sure of this...) that Firefox is still in a connection state...

    Not "Established" but one of the last remaining connection state like "FIN WAIT1"...

    In W xp for example the timeout allowed for all application is determined by the value of this registry key:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\TcpTimedWaitDelay


    The default value is 240 seconds = 4 minutes !!! :eek:

    Ref.:
    http://www.microsoft.com/technet/prodtechnol/windows2000serv/reskit/regentry/58811.mspx?mfr=true

    So this is (I believed) examined as a connection by LNS... This is my hypothesis about Firefox...


    But there is a remaining "mystery":

    The only problem here is to understand why LNS ask to be authorised again in this situation. o_O

    No more idea for this moment.

    :)

    P.S. If you want to check the connection state this can be useful:
    http://www.microsoft.com/technet/sysinternals/Networking/TcpView.mspx

    :)
     
    Last edited: May 24, 2007
  6. El_Nebuloso

    El_Nebuloso Registered Member

    Joined:
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    Posts:
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    Thank you very much Climenole !
    Then I will concentrate on this remaining mystery.

    Gruss,
    El Nebuloso
     
  7. Climenole

    Climenole Look 'n' Stop Expert

    Joined:
    Jun 3, 2005
    Posts:
    1,640
    Hi El_Nebuloso :)

    Yes, that mystery...

    "Einführung in der Phänomenologie des LNS Geistes"

    Personnaly I found this "SELBST-authorisation" somewhat absurd. :rolleyes:

    In Principia Mathematica, Bertrand Russell and A.N. Whitehead developped the "Theory of Types" to avoid contradictions:

    An element of a class can't be treated at the same level than the class itself... Otherwise this drive to contradictions...

    My (not so ? :shifty: ) humble opinion is :

    LSN give the choice to be authorised by itself or not: a kind of Hegelian "Aufhebung" !!!

    This "authorisation" must be "implicit" or built-in... Not at the same level than the other application to be examinded by LNS...

    Did LNS is an HEGELIAN firewall ? o_O

    :blink:
     
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